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Speaker brands and models supported

The planner carries 525 professional speaker models across 32 brands, 412 of them checked against a source naming that exact model. Every record cites its source URL with a retrieval date; the register on this page says which kind of source that is.

  • Adamson: VGd, E15, S10, S118, CS10, CS7p, IS10p, IS7c, IS5c, IS119, IS213
  • AtlasIED: FAP33T-W, FAP43T-W, FAP63T-W, FAP63TC-W, FAP62T, FC-4T, FC-8T, ALA10T, AS-6T, AS-10ST, PM8CX, PM8SUB, IP-PM8GD-B, AP-15T, APF-15T, SD72
  • Biamp: R.5-94Z, R.15COAX, R.35COAX, R.35-3896-EN, ENT206, ENT212, C4, R2-52Z-EN, V2-1596, D8, R.25-94Z, R2-94Z
  • Bose Professional: DesignMax DM3C, DesignMax DM5C, DesignMax DM6C, DesignMax DM8C, FreeSpace FS2C, FreeSpace FS4CE, ArenaMatch AM10, MA12EX, MB210-WR, ArenaMatch Utility AMU108, ArenaMatch Utility AMU208, ArenaMatch AM20/100, ShowMatch SM10, DesignMax DM3SE, DesignMax DM5SE, DesignMax DM6SE, DesignMax DM8SE, F1 Model 812, F1 Subwoofer, L1 Pro8
  • CODA Audio: ViRAY, TiRAY, N-RAY, CiRAY, HOPS7-Pro, HOPS12T-Pro, HOPS10T-Pro, APS-Pro-D, APS-Pro-S, D12
  • Danley: SH96HO
  • EAW: KF210, MKC60, MKC80, MKC120, QX326, QX364, QX396, QX544i, QX594i, LA121, LA153, LS432i
  • Ecler: IC6, eMOTUS5OD
  • Electro-Voice: EKX-15P, ETX-15P, ETX-18SP, ELX200-15P, EVERSE 12, EVF-1152S/96, EVID-C6.2-G2, EVA-2082S/1220
  • FBT: Ventis 206A, Ventis 110A, Ventis 115A, X-Lite 112A, X-Lite 115A, X-Sub 115SA, Muse 210LA, Horizon VHA 406A, Vertus CLA 406.2A, Vertus CLA 208SA, CSL 630 TIC
  • Fonestar: ASPC-650T, AS-180T
  • JBL Professional: VRX932LA, Control 65 P/T, Control 25-1, Control 28-1, AC15, AC18/26, CBT 50LA-1, CBT 70J-1, Control 26CT, Control 29AV-1, Control 31, ASB6118, CBT 100LA-1, VRX932LA-1, VRX932LAP, SRX906LA, PRX915, Control 14C/T, Control 16C/T, Control 19CS, Control 25AV, Control 50S/T, SRX815P, SRX818SP, SRX828SP, PRX918XLF, VTX A8, VTX A12, IRX108BT, AC195, AC299, AC599, CWT128, Control 67 P/T, SRX835P, SRX818S, ASB6128, CSS8004, CSS8008, CSS8018, 8124, 8128, 8138, LCT 81C/T, PRX412M, PRX415M, PRX425, PRX418S, EON710, EON712, EON715, EON718S, Control 1 Pro, PRX825, AC16, AC18/95, AC25, AC26, AM5212/00, AM7212/00, AM7215/64, AWC129, AWC159, AWC62, AWC82, CBT 1000, Control 30, Control 40CS/T, Control 60PS/T, Control 62P, Control 67HC/T, Control 85M, IRX112BT, PRX ONE, PRX908, PRX915XLF, PRX925, PRX935, SRX910LA, SRX918S
  • K-array: Lyzard KZ1 I, Lyzard KZ14 I, Vyper KV25 II, Vyper KV52 II, Vyper KV102 II, Kobra KK52 I, Kobra KK102 I, Python KP52 I, Python KP102 I, Kayman KY52, Kayman KY102, Anakonda KAN200, Anakonda KAN200+, Anakonda KAN200+8, Tornado KT2, Tornado KT2C, Domino KF26, Domino KFC26, Domino KF210, Domino KF212, Turtle KRM33, Turtle KRM33P, Truffle KTR24, Truffle KTR25, Truffle KTR26, Rumble KU44-2, Mugello KH5, Mugello KH5P, Firenze KH7, Firenze KH8, Firenze KS7, Firenze KS8, Mastiff KM112P, Mastiff KM312P, Rumble KU26, Dragon KX12, Dragon KX2, Rumble KU210
  • KGEAR: GH4, GH4A, GH12, GH412, GF22, GF22A, GF42, GF42T, GF42A, GF82, GF82T, GF82A, GF162, GF162T, GS1, GS2, GS6, GS6A, GS12, GS12A, GS18, GS18A, GS218, GS218A, GC8, GC8T, GC3, GC6, GC8S, GH8, GT12, GT8
  • KV2 Audio: ES1.0, ESD6, ESD10, ESD15, ESD5, ESD25, ESD8, SL412, EX10, EX12
  • L-Acoustics: K2, A15 Focus, X15 HiQ, A15 Wide, A10 Focus, X12, X8, X8i, X4i, 5XT, KIVA II
  • Mackie: Thump212, Thump215, Thump212XT, Thump210, Thump GO, Thump12BST, Thump15BST, SRM210 V-Class, SRM212 V-Class, SRM215 V-Class, DRM212, DRM215, DRM315, SRM-Flex
  • Martin Audio: TORUS T1215, WPC, WPS, WPL, WPM, CDD5, CDD12, CDD15, X12, X15, V.15, CDD-LIVE 12, A55
  • Meyer Sound: ULTRA-X40, UPQ-1P, UPJunior, UPJ-1XP, UP-4XP, MM-4XP, 900-LFC, LEOPARD, LINA
  • NEXO: P8, P10, P12, P15, PS15-R2, GEO M620, ID14-I, ID24-I, ID24-T, ID84-I, ePS12, RS18
  • Polk Audio: 265-RT, Atrium 4, Atrium 5, Atrium 6, MC60, MC80, V60, V80
  • QSC: AcousticDesign AD-C42T, AcousticDesign AD-C6T, AcousticDesign AD-C81T, AcousticDesign AD-S52, AcousticDesign AD-S82, K12.2, K10.2, K8.2, KS118, KLA12, E110, AD-S6T, AD-S32T, KW152, CP12, KLA181, AP-5102, AcousticDesign AD-C.SUB, AcousticDesign AD-C1200, AcousticDesign AD-C4T-LP, AcousticDesign AD-C6T-LP, AcousticDesign AD-C820, AcousticDesign AD-P4T, AcousticDesign AD-P6T, AcousticDesign AD-S.SUB, AcousticDesign AD-S12, AcousticDesign AD-S4T, AcousticDesign AD-S8T, CP8, E112, E115, E118sw, KS112, KS212C, KW122, KW153, KW181, LA108, LA112
  • RCF: HDL 6-A, ART 715-A MK5, ART 315-A MK4, ART 912-A, HDL 20-A, TTL55-A, TTL33-A II, NXL 24-A MK2, EVOX J11, PL 6X, P 3115T
  • Renkus-Heinz: PN61, PN81, PN82, PN151, PNX121, PN121M, PN112-SUB, IC16-RN, IC8-RN, CFX121
  • Sonance: Visual Performance VP65R, Visual Performance VP85R, Visual Performance VP62, LS6.1 Landscape, LS Landscape SUB8, Cinema LCR-1, IS6, IS8, Mariner 6.5SST, Cinema LCR2, LS12T, LS15T, LS4T, LS6T, Mariner 54, Mariner 56, Mariner 64, Mariner 66, PS-C43RT, PS-C63RT, PS-C83RT, PS-P43T, PS-P63T, PS-P83T, PS-P83WT, PS-S43T, PS-S53T, PS-S63T, PS-S83T, PS-S83WT, Cinema SUR1, Visual Performance VP42, Visual Performance VP46, Visual Performance VP48, Visual Performance VP60R, Visual Performance VP62R, Visual Performance VP64R, Visual Performance VP66R, Visual Performance VP68R, Visual Performance VP80R, Visual Performance VP82R, Visual Performance VP86R, Visual Performance VP88R, Visual Performance VPXT6, Visual Performance VPXT6R, Visual Performance VPXT6R SST, Visual Performance VPXT8R
  • TOA: HA-1030EN
  • Turbosound: iX15, iX12, iQ12, iQ8, iQ15B, NuQ82, MV212, TCS152/64, TCS-081C, Milan M15, TFS-550H
  • Void Acoustics: Cyclone 4, Cyclone 208, Arclite, Airten V3
  • Wharfedale Pro: TITAN-8, TITAN-X12, TITAN-X15, TITAN-12Z, TITAN-15Z, TITAN-8A MKII, EVP-X12 MKII, EVP-X15 MKII, Delta-X12, Delta-X15, WLA-312X, WLA-28A, PROGRAMME-105T, PROGRAMME-108T
  • Yamaha Professional: VXC4, VXC6, VXC8, VXS5, VXS8, CZR10, CZR12, DZR12, DXS15, VXL1B-16, DZR315, DZR10-D, DZR12-D, DZR15-D, DZR315-D, DXS15XLF, DXS18XLF, DXS15XLF-D, DXS18XLF-D, CZR15, CXS15XLF, CXS18XLF, CBR10, CBR12, CBR15, DBR10, DBR12, DBR15, DZR15, DZR10
  • d&b audiotechnik: V8, Y8, Y7P, V12, T10, 44S, 24S, 42S, U5, U5N, 24C, 16C
  • dBTechnologies: VIO L210, VIO L212, VIO L1610, VIO C12, VIO X10, VIO X12, VIO X15, VIO X206, VIO X310, VIO S218, VIO S318, VIO S218F, ES 1203, IS8S-WP

Applications supported

  • Live amplified music (105 dB target) — touring, festival, premium event.
  • House of worship (90 dB) — sermon clarity priority.
  • Conference / auditorium (85 dB) — speech-priority install with controlled reverb.
  • Lecture hall (80 dB) — classroom and academic speech reinforcement.
  • Restaurant / retail BGM (70-75 dB) — distributed background audio, conversation-friendly.

Speaker Coverage Planner — Engineering-grade SPL prediction

— Planner · speaker coverage

SPL, coverage radius and quantity, estimated.

Pick a brand, model and application. An indicative free-field SPL at the listener, coverage radius on the -6 dB axis and a planning-level box count for the room — a starting point for design, not a final specification. 32 brands across professional, installed and architectural audio.

IndicativeIndicative planning estimate

Max SPL at listener

120

dB · target 85 dB · headroom +35 dB

Coverage radius

15.0

metres · -6 dB axis

Quantity

1

boxes for 240.0 m²

A planning link — not a quote.

Review this on WhatsApp
SPEAKER · L-AcousticsLISTENER · 15.00 mROOM 20.00 m × 12.00 m · COVERAGE r ≈ 15.00 m
model
L-Acoustics A15 Focus
max spl
144 dB @1m
spl at listener
117 dB · max 120 dB
dispersion
H 90° · V 10°
sensitivity
105 dB @1W/1m
power
350 W applied · 700 W
bandwidth
41-20000 Hz
impedance
8 ohm
coverage
r ≈ 15.00 m · horizontal width ≈ 30.00 m

A-Series install-friendly line array. Horizontal coverage is field-adjustable via Panflex to 70 degrees, 110 degrees, or an asymmetric 90 degrees (35/55); the 90-degree figure carried here is the mid setting, so re-check coverage against the setting actually specified. Vertical is 10 degrees. Sensitivity and RMS power are planning figures, not L-Acoustics-published values.

What changes this estimate

  • Room drawings & obstructions
  • Confirmed ceiling height
  • Finishes & absorption in the space
  • Final loudspeaker model & dispersion

Feasibility

120 dB max at the listener carries 35 dB over the 85 dB target — comfortable headroom; a smaller cabinet may be more cost-effective.

Source

L-Acoustics A15 Focus product page

Model source 2026-08-30

A planning link — not a quote.

Quick answer

Speaker coverage planning estimates how many loudspeakers a room needs and roughly where they sit so sound pressure stays even across the seating area — derived from the speaker's coverage angle, mounting height and listener distance. This planner returns an indicative layout and SPL estimate for source-cited models. It is a planning reference, not an acoustic design.

  • When to use

    Early scoping of a PA, conference or auditorium audio system to gauge speaker count and spacing before an acoustic design.

  • When not to use

    For reverberation and room-treatment questions, use the Acoustic RT60 Calculator. Final tuning depends on measurement, DSP and commissioning on site.

Speaker coverage — full FAQ

· Starting configurations

Typology presets — pick a scenario, see the calculator.

Each preset opens a curated configuration page with the engineering reasoning behind the numbers. Then the calculator loads with the same inputs — change them and the URL stays shareable.

Speaker Coverage · Hospitality

Hotel lobby — background music, 20 × 12 m

Open preset

Speaker Coverage · Auditorium

300-seat conference auditorium — speech-priority line array

Open preset

Speaker Coverage · House of Worship

500-capacity house of worship — touring-grade headroom

Open preset

Speaker Coverage · Touring line array

L-Acoustics K2 touring line array — SPL & coverage

Open preset

Speaker Coverage · Install line array

L-Acoustics A15 Focus — SPL & coverage in a 30 × 18 m hall

Open preset

Speaker Coverage · Touring line array

d&b audiotechnik V8 — SPL & coverage for live events

Open preset

Speaker Coverage · Install line array

d&b audiotechnik Y8 SPL & coverage

Open preset

Speaker Coverage · Install line array

JBL Professional VRX932LA-1 SPL & Coverage

Open preset

Speaker Coverage · Install line array

JBL Professional SRX906LA — SPL & coverage, conference hall

Open preset

Speaker Coverage · Point source

JBL Professional Control 25-1: SPL & coverage

Open preset

Speaker Coverage · Steerable column

JBL Professional CBT 70J-1 — SPL & coverage

Open preset

Speaker Coverage · Ceiling 100V

JBL Professional Control 26CT: SPL & coverage

Open preset

Speaker Coverage · Install line array

K-array Python KP102 I: SPL & Coverage

Open preset

Speaker Coverage · Point source

K-array Domino KF212: SPL & Coverage Preset

Open preset

Speaker Coverage · Point source

K-array Lyzard KZ1 I — SPL & coverage

Open preset

Speaker Coverage · Touring line array

K-array Firenze KH8 SPL & coverage

Open preset

Speaker Coverage · Install line array

K-array Kobra KK102 I — SPL & coverage in a 30 × 18 m hall

Open preset

Speaker Coverage · Point source

K-array Tornado KT2: SPL & coverage at 6 m

Open preset

Speaker Coverage · Touring line array

K-array Mugello KH5: SPL & Coverage for Touring Rigs

Open preset

Speaker Coverage · Install line array

K-array Vyper KV102 II — SPL & coverage

Open preset

Speaker Coverage · Point source

K-array Mastiff KM312P: SPL & coverage at 12 m

Open preset

Speaker Coverage · Fitness & wellness

Gym / fitness floor — high-energy music, 30 x 18 m

Open preset

Speaker Coverage · Education & lecture

Lecture auditorium — speech-priority column, 24 x 14 m

Open preset

Speaker Coverage · Hospitality

Rooftop lounge / bar — discreet background music, 14 x 9 m

Open preset

Catalogue coverage

Speaker Coverage Planner lists 525 speaker models across 32 brands, 412 of them checked against a source naming that exact model.

The editorial target is 30 source-verified models per brand. We only publish selectable calculator rows when the load-bearing specs are source-cited, so missing models are collected as a verification backlog instead of being guessed.

Model-source verified

412 / 525

Complete brands

6/32

Source-verified share

78%

Missing model?

Send the speaker model name with max SPL, dispersion, 100 V / 70 V transformer tap list, power / active-passive status, frequency range and official datasheet link. We add it in a verified batch once the source checks pass.

Submit a model for verification

Highest-priority brand gaps

  • Danley needs 29 more
  • TOA needs 29 more
  • Ecler needs 28 more
  • Fonestar needs 28 more
  • Void Acoustics needs 26 more
  • Electro-Voice needs 22 more
  • Polk Audio needs 22 more
  • Meyer Sound needs 21 more

— Reference · manufacturer-stated

Amplifier matching for K-array and KGEAR passive cabinets

The question after coverage is almost always the amplifier. K-array publishes a matching table stating the maximum number of each passive cabinet that may sit in parallel on one amplifier channel, and the KGEAR datasheets state suggested amplifiers, low-frequency pairings and sealing accessories. 308 of those statements are reproduced below across 46 cabinets and 7 amplifier column headings, each with the document it was read from.

Everything here is the manufacturer’s statement, quoted. Nothing is derived, averaged or extrapolated, and no amplifier specification is published because none was sourced — the amplifier names are the column headings the source document prints, and “KA104 / KA208” is one heading covering two amplifiers exactly as printed. Use it to shape a question for the manufacturer’s own matching table, not as a substitute for it.

Read this with every number below

“Max Recommended Number of Speakers in Parallel per Amplifier Channel”. The manufacturer's matching table is colour-coded and the band was not recoverable from the extracted text, so a count here is the stated maximum in parallel per amplifier channel — not a recommended quantity, and not a substitute for the amplifier's own load calculation.

Maximum recommended number of speakers in parallel per amplifier channel, by cabinet and by the impedance the source table row was read at. A blank cell means the source states no figure.
CabinetRead atKA02IKA04 / KA18KA14 / KA28KA34 / KA68KA104 / KA208KS1 / KS2KS3 / KS4
K-array Lyzard-KZ1 I16 Ω4484444
K-array Lyzard-KZ14 I16 Ω4484444
K-array Vyper-KV25 II8 Ω224not recommendednot recommendednot recommendednot recommended
K-array Vyper-KV25 II32 Ωnot stated8168888
K-array Vyper-KV52 II16 Ωnot stated484not recommendednot recommendednot recommended
K-array Vyper-KV102 II8 Ωnot stated242not recommendednot recommendednot recommended
K-array Kobra-KK52 I16 Ωnot statednot stated84not recommendednot recommendednot recommended
K-array Kobra-KK102 I8 Ωnot statednot stated42not recommendednot recommendednot recommended
K-array Python-KP52 I8 Ωnot statednot stated42not recommendednot recommendednot recommended
K-array Python-KP102 I4 Ωnot statednot stated21not recommendednot recommendednot recommended
K-array Kayman-KY524 Ωnot statednot stated21not recommendednot recommendednot recommended
K-array Vyper-KV52 II64 Ωnot statednot statednot stated16161616
K-array Vyper-KV102 II32 Ωnot statednot statednot stated8888
K-array Kobra-KK52 I64 Ωnot statednot statednot stated16161616
K-array Kobra-KK102 I32 Ωnot statednot statednot stated8888
K-array Python-KP52 I32 Ωnot statednot statednot stated8888
K-array Python-KP102 I16 Ωnot statednot statednot stated4444
K-array Kayman-KY5216 Ωnot statednot statednot stated4444
K-array Kayman-KY1028 Ωnot statednot statednot statednot stated222
K-array Domino-KF268 Ω2242not recommendednot recommendednot recommended
K-array Domino-KFC26 (ceiling)8 Ω2242222
K-array Tornado-KT28 Ω2not recommendednot recommendednot recommendednot recommendednot recommendednot recommended
K-array Tornado-KT232 Ω88168888
K-array Domino-KF2104 Ωnot stated121not recommendednot recommendednot recommended
K-array Anakonda-KAN200+88 Ωnot stated242222
K-array Turtle-KRM33P (powered)8 Ωnot stated242222
K-array Domino-KF2632 Ωnot statednot stated168888
K-array Domino-KF21016 Ωnot statednot statednot stated4444
K-array Domino-KF2128 Ωnot statednot statednot stated2222
K-array Dragon KX12 coaxial point-source8 Ωnot statednot statednot stated2222
K-array Truffle-KTR24 subwoofer4 Ω1121111
K-array Truffle-KTR25 subwoofer4 Ω1121111
K-array Truffle-KTR26 subwoofer2 Ω1not recommended1not recommendednot recommendednot recommendednot recommended
K-array Rumble KU26 ultra-slim subwoofer8 Ω2242not recommendednot recommendednot recommended
K-array Rumble KU2104 Ωnot stated121not recommendednot recommendednot recommended
K-array Rumble KU21016 Ωnot statednot statednot stated4444
K-array Mastiff-KM112P stage monitor8 Ωnot statednot statednot stated2222
K-array Mastiff-KM312P stage monitor4 Ωnot statednot statednot stated1111
KGEAR GF2216 Ω4484444
KGEAR GF428 Ω224not recommendednot recommendednot recommendednot recommended
KGEAR GF8216 Ω4444not recommendednot recommendednot recommended
KGEAR GF1628 Ω2222not recommendednot recommendednot recommended
KGEAR GH44 Ω11not recommendednot recommendednot recommendednot recommendednot recommended
KGEAR GF4232 Ωnot stated888888
KGEAR GH416 Ωnot stated444444
KGEAR GF8264 Ωnot statednot stated1616161616
KGEAR GF16232 Ωnot statednot stated88888
KGEAR GH816 Ωnot statednot stated44444
KGEAR GT88 Ωnot statednot stated22222
KGEAR GH1232 Ωnot statednot statednot stated8888
KGEAR GH4128 Ωnot statednot statednot stated2222
KGEAR GT128 Ωnot statednot statednot stated2222

A number is the stated maximum in parallel per amplifier channel. ✕ is a cell the source marks as not recommended. is a cell the source states nothing for — it is not a zero and it is not a refusal. A cabinet listed at two impedances is listed at two impedances in the source, with different figures; the impedance is part of the figure.

Other stated relationships

  • GH12 · driven by
    GA46 — "up to 4x GH12 array elements can be driven by a single channel of the GA46 amplifier"
  • GH12 · suggested amplifier
    GA43 — "Suggested amplifiers GA43 and GA46."
  • GH12 · suggested amplifier
    GA46 — "Suggested amplifiers GA43 and GA46."
  • GH412 · suggested amplifier
    GA43 — "Suggested amplifiers GA43 and GA46." (GH12 / GH412 spread)
  • GH412 · suggested amplifier
    GA46 — "Suggested amplifiers GA43 and GA46." (GH12 / GH412 spread)
  • GS6 · suggested amplifier
    GA201 — "Suggested amplifiers / GA201 up to 4pcs/ch @8 ohm"
  • GS6 · low-frequency extension for
    GF22 — "Designed to match our GF22 and GF82 loudspeakers as a low frequency extension device"
  • GS6 · low-frequency extension for
    GF82 — "Designed to match our GF22 and GF82 loudspeakers as a low frequency extension device"
  • GS1 · low-frequency extension for
    GH line — "integrates seamlessly with the GH loudspeaker line" (page-1 prose; the sentence names GS1P, see note)
  • GS2 · low-frequency extension for
    GH line — "the GS2 integrates seamlessly with the GH loudspeaker line"
  • GS2 · system role
    GH line — "Low-end extension for GH loudspeakers" (FEATURES bullet)
  • GH4 · array hardware
    GH4-JOINT — "this hardware supports up to 8 GH4 speakers in array"
  • GF22 · IP sealing accessory
    G-IPCAP1 — "IP Sealing cap for GF22 / GF82 / GF42 / GF162 / GH4 / GU210"
  • GF42 · IP sealing accessory
    G-IPCAP1 — table footnote 3 "For IP55 G-IPCAP1 accessory is required"
  • GF42T · IP sealing accessory
    G-IPCAP1 — table footnote 3 "For IP55 G-IPCAP1 accessory is required"
  • GF42A · IP sealing accessory
    G-IPCAP1 — table footnote 3 "For IP55 G-IPCAP1 accessory is required"
  • GF82 · IP sealing accessory
    G-IPCAP1 — table footnote 3, GF82 column
  • GF82T · IP sealing accessory
    G-IPCAP1 — table footnote 3, GF82T column
  • GF82A · IP sealing accessory
    G-IPCAP2 — table footnote 3, GF82A column names G-IPCAP2 (NOT G-IPCAP1)
  • GF22A · IP sealing accessory
    G-IPCAP2 — "IP54 (IP55 requires G-IPCAP2 accessory)", GF22A column
  • GF162 · IP sealing accessory
    G-IPCAP1 — table footnote, GF162 column
  • GF162T · IP sealing accessory
    G-IPCAP1 — table footnote, GF162T column
  • GH4 · IP sealing accessory
    G-IPCAP1 — footnote 3 "With dedicated sealing accessory G-IPCAP1" - GH4's IP64 depends on it
  • all passive KGEAR · requires a dedicated preset on
    K-array amplifiers — "Passive loudspeakers require dedicated presets loaded onboard K-array amplifiers."
  • GS218A · remote control through
    Powersoft ArmoniaPlus — "Remote control through Powersoft ArmoniaPlus"

Documents these statements were read from

  • GS1 / GS2 / GT12 datasheets, Notes block
  • K-ARRAY_Amp-to-Speaker_Matching_Table_Rev20260428.pdf (SHA-256 a23d26e29631…, retrieved 2026-08-31); 16Ω; colour-coded quality band NOT recorded — not recoverable from text
  • K-ARRAY_Amp-to-Speaker_Matching_Table_Rev20260428.pdf (SHA-256 a23d26e29631…, retrieved 2026-08-31); 2Ω; colour-coded quality band NOT recorded — not recoverable from text
  • K-ARRAY_Amp-to-Speaker_Matching_Table_Rev20260428.pdf (SHA-256 a23d26e29631…, retrieved 2026-08-31); 32Ω; colour-coded quality band NOT recorded — not recoverable from text
  • K-ARRAY_Amp-to-Speaker_Matching_Table_Rev20260428.pdf (SHA-256 a23d26e29631…, retrieved 2026-08-31); 4Ω; colour-coded quality band NOT recorded — not recoverable from text
  • K-ARRAY_Amp-to-Speaker_Matching_Table_Rev20260428.pdf (SHA-256 a23d26e29631…, retrieved 2026-08-31); 64Ω; colour-coded quality band NOT recorded — not recoverable from text
  • K-ARRAY_Amp-to-Speaker_Matching_Table_Rev20260428.pdf (SHA-256 a23d26e29631…, retrieved 2026-08-31); 8Ω; colour-coded quality band NOT recorded — not recoverable from text
  • KGEAR_GF162I-line_DS_V1.0
  • KGEAR_GF22I-line-DS_V.2
  • KGEAR_GF42I-line-DS_V.2.0
  • KGEAR_GF82I-line_DS_V.2
  • KGEAR_GH12_DS_v1.0
  • KGEAR_GH4-line_DS_V.1.5
  • KGEAR_GS1_DS_ENG_V.1
  • KGEAR_GS218-line_DS_ENG_V.1
  • KGEAR_GS2_DS_ENG_V.1
  • KGEAR_GS6_DS_ENG_V.1
  • KGEAR_generalcatalog_2022
  • k-array.com GF42 product page, accessories block

Plan with confidence

From an SPL estimate to a system that sounds right everywhere

The planner gives an indicative SPL, coverage radius and box count — a starting point for design, not a final specification. These notes turn that into a brief: what stays fixed, what to confirm in the room and what to send us for a coverage review.

Planning notes

  • SPL at the listener is the free-field floor — real rooms add reverberant energy, so a lively room runs louder than the prediction and a treated room runs close to it.
  • Dispersion versus room geometry decides coverage uniformity — the right pattern is what separates 'good everywhere' from 'good only at the engineer's seat'.
  • The box count is a first-order estimate against rectangular coverage; the manufacturer's prediction software (Soundvision, ArrayCalc) is the deliverable on the real project.
  • Most install cabinets roll off above 60–75 Hz — a subwoofer pair is part of the brief, not an afterthought, for music programme.

Before final design, confirm

  • Room drawings, ceiling height, finishes and absorption (RT60 behaviour).
  • The SPL target for the application and the seating layout.
  • The final loudspeaker model, dispersion and the amplifier / processor architecture.
  • Sub-pairing, delays and the rigging / structural assessment where applicable.

What to share with us for review

  • The floor plate, the seating layout and the SPL target.
  • The brand preference, if any — or just paste the planner's share link.
  • Whether the room is speech-priority or full-band music programme.
Send your details for review

Share your drawings, BOQ, site details or the tool result with TechnoGuru for a written estimate after drawings, a BOQ or a site review.

· Engineering advisory · Speaker Coverage

SPL is the headline. Dispersion and room behaviour are the conversation.

The calculator answers 'how loud and how many'. The engineering underneath — dispersion pattern vs room geometry, direct field vs reverberant field, processor configuration, amplifier matching, cabling discipline — is what separates a system that sounds correct everywhere from one that sounds correct only at the engineer's seat.

01

Deployment observations

  • SPL prediction by inverse-square law is the floor of a coverage conversation, not the ceiling. The calculator gives you SPL at the listener distance assuming free-field propagation; real rooms have reflections that add reverberant energy, often 3-10 dB at the listening position depending on RT60 and absorption. For lively rooms (RT60 > 1.2s) the actual perceived SPL exceeds the calculator's free-field prediction; for treated rooms the calculator's prediction is conservative-accurate.
  • Dispersion pattern determines coverage uniformity. A 100° × 10° line-array element covers a wide horizontal seating block from elevation with controlled vertical energy — sermons, auditoria, live events. A 110° × 110° pendant ceiling speaker covers a circle of floor area — restaurants, retail. Specifying the wrong dispersion for the room is the most common cause of 'great seats and bad seats' in installs.
  • Sub-pairing changes the brief. Most line-array and install cabinets roll off above 60-75 Hz. For live amplified music (kick drum, bass guitar, electronic music) a subwoofer pair extending to 35-45 Hz is mandatory. The calculator's frequency-range row tells you whether the cabinet stands alone or needs sub support.
02

Operational notes

  • Amplifier sizing convention, and the population it applies to: for a LOW-IMPEDANCE passive cabinet, provision the amplifier at 2-4× the speaker's continuous rating for clean headroom and to avoid clipping (which damages speakers more than peak power does). A 700 W cabinet is typically driven by a 1400-2800 W amplifier per channel. That convention does NOT transfer to a 70/100 V constant-voltage system: there the amplifier sees the sum of the transformer taps actually selected across the run, so the multiplier is applied to the tapped total and never to a single cabinet's published wattage. The planner withholds an applied-power figure on constant-voltage models whose tap settings it does not hold, precisely so this convention cannot be applied to a number that may be a tap.
  • Constant-voltage (70 V / 100 V line) vs low-impedance is an architectural decision, not a preference. A constant-voltage line tolerates very long cable runs (100 m+) at minimal loss and lets many cabinets share one channel at chosen tap settings — the default for distributed BGM and paging in restaurants, retail and large public spaces. Low-impedance (8 ohm typical) delivers higher peak SPL and lower distortion — the default for live events, premium worship and serious AV. Sizing, cabling and amplifier selection differ on every count, so the decision comes before the model, not after it.
03

Lifecycle implications

  • Driver lifecycle: quality install cabinets (K-array, d&b, L-Acoustics, JBL Pro) hold their performance for 15-25 years in climate-controlled rooms. Touring cabinets typically refresh on 8-12 year cycles driven by transport wear. Ceiling 100V systems run 20+ years if the room humidity is controlled.
  • Processor and amplifier refresh: 8-12 years for system processors (BSS Soundweb, Symetrix, Q-SYS); 10-15 years for amplifiers. Plan amplification as a refreshable layer; the speakers and the structural cabling outlast the electronics by 2-3x.

Verification status: Conditional engineering model — assumptions stated · Independently reference-tested · reviewed 2026-08-30

· Engineering notes

How to read this tool’s output

Stage 3 (design). Use to scope speaker quantity, brand and amplification before BOQ. For final design specify manufacturer prediction software (Soundvision, ArrayCalc) against actual room geometry.

What an engineer should know

The assumptions behind the numbers this tool produces.

  • SPL coverage planner across a source-cited public catalogue spanning pro touring, commercial audio and architectural speakers. Computes predicted SPL at listener distance via inverse-square law, coverage radius on the -6 dB dispersion axis, and quantity recommendation against rectangular room area.

When this tool is the right one

The project moments and room types this is built for.

  • Auditorium speaker scoping at design stage.
  • House-of-worship sound-system brief.
  • Restaurant / retail BGM zoning.
  • Live-event audio specification.

What changes the answer in practice

Field conditions that move the result away from the planning figure.

  • Free-field SPL prediction is conservative — real rooms add reverberant energy. Treated rooms match the calculator; lively rooms exceed it.
  • Amplifier sizing convention: provision at 2-4× speaker RMS for clean headroom and to avoid clipping damage.

Defensible starting architectures

Vendor-neutral reference points, not a recommendation to buy — the right answer is the one that survives your site survey.

  • Premium worship / auditorium: K-array Pinnacle KR202, L-Acoustics A15 Focus, d&b Y8 — install-grade line array with controlled vertical dispersion.
  • Live event / touring: K-array Mugello KH3, L-Acoustics K2, d&b V8, JBL VTX A8 — high-output line array with sub support.
  • Distributed BGM (restaurant / retail): Fonestar ASPC-650T, Ecler IC6 — ceiling 100V line for long-run distributed audio.

Common mistakes

Failure patterns we see on real projects.

  • Specifying 100V line speakers for live amplified events — designed for distributed BGM, not concert SPL.
  • Ignoring sub-pairing requirement when the chosen cabinet rolls off above 60-80 Hz.
  • Choosing dispersion pattern against the wrong room shape — 110° × 110° pendant in a long narrow auditorium = bad seats at the back.

What this tool does not do

Deliberate limits — where the estimate stops and design begins.

  • Driver lifecycle: 15-25 years in climate-controlled installs; 8-12 years for touring service.
  • Processor / amplifier refresh on 10-15 year cycle.

Where this tool fits

The building types this output is calibrated for — and, where we have said so, the ones it is not.

Best suited for

Delivered as a service ·

Professional Audio & PA SystemsHospitality Venue AVAuditoriums & Boardrooms

Compare the options ·

Architectural audio vs conventional loudspeakers — the design approach70V/100V distributed audio vs low-impedance audio

· Why it matters

A speaker coverage calculator that quotes 'how many cabinets' without telling you the SPL at the listener is missing the question. One that doesn't carry dispersion data is missing the answer. This one runs inverse-square SPL math from each cabinet's rated maximum SPL, surfaces the coverage radius at the -6 dB dispersion axis, and recommends quantity against rectangular coverage area. 32 brands · 525 public models, 412 checked against a source naming that exact model · sources cited per model.

· Frequently asked

Speaker coverage —
what people ask first.

Why does SPL drop so much with distance?

Inverse-square law. Every doubling of distance drops SPL by 6 dB in free-field. A 100 dB SPL at 1m becomes 94 dB at 2m, 88 dB at 4m, 82 dB at 8m. In real rooms the reverberant field adds back some energy (typically 3-10 dB at the listening position) so the perceived drop is less dramatic, but the calculator's free-field prediction is the conservative engineering floor.

Why are line-array dispersions so narrow vertically (5-15°)?

Because line-array geometry is designed to control vertical coverage so that distant rows hear the same level as front rows. Each cabinet narrowly aims a slice of the audience; assembling 6-12 cabinets in an array creates a continuous vertical coverage from front-row to back-row with controlled level taper. Horizontally line arrays are typically wide (80-110°) because the seating block is wide.

What's the role of Soundvision / ArrayCalc / K-array prediction software?

Manufacturer prediction software models the actual room geometry (audience block, ceiling, side walls) against the actual speaker positions, splays and processor settings. The calculator gives you a first-order SPL estimate; manufacturer software gives you per-seat SPL prediction with reflections and array taper modelled. Use the calculator for early-stage scoping; specify Soundvision / ArrayCalc as a deliverable on the actual project.

What about Kasper Sound and other brands not in the database?

The public catalogue now carries 525 public models across 32 professional, commercial and architectural audio brands — 412 checked against a source naming that exact model, the rest held as indicative. Kasper Sound and other domestic / international brands are added only when we have usable datasheets. Send us the brand and model spec via /contact; we add verified profiles in editorial batches rather than publishing half-verified data.

How accurate is the quantity recommendation?

The quantity figure assumes uniform circular coverage at the -6 dB dispersion axis on the listener plane. It is a first-order estimate and tends to be conservative (recommends slightly more boxes than a manufacturer's prediction software would, because real coverage circles overlap and audio sums coherently). For final design always run the manufacturer's prediction software against actual room geometry.

Engineering toolkit

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