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BEYMA 18LX60V2/S

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BEYMA 18LX60V2/S — 18" / 18 inch · Woofer · Subwoofer / Bass
700 W AES - 98 dB - 25 – 1000 Hz - 8 Ω
Part no.: 42A-CHS-TT-BEY-0013

309.00 € 309.0 EUR 309.00 €

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BEYMA 18LX60V2/S — 18" · Woofer

700 W AES · 98 dB Sensitivity · Frequency range 25 Hz – 1000 Hz

Technical data

  • Diameter: 18 "
  • Voice coil: 4 "
  • Power handling: 700 W AES
  • Sensitivity: 98 dB
  • Impedance: 8 Ω
  • Weight: 11.2 kg
  • Mounting depth: 218 mm
  • Frequency range: 25 – 1000 Hz

Series: LX · Part no.: 42A-CHS-TT-BEY-0013

Beyma 18LX60V2/S: 18" woofer with Qts 0.48 for large vented and sealed enclosures

Not every 18" is a high-power sub. The Beyma 18LX60V2/S from the LX series is an 18" woofer with 700 W AES, 98 dB sensitivity and, for a PA driver, an unusually high Qts of 0.48. It covers 25 to 1000 Hz at 8 Ω and works with a 4" voice coil.

The high Qts together with Qms 13.8, fs 35 Hz and Vas 236 l describes a mechanically low-loss driver with comparatively gentle electrical damping; BL 19 Tm drives 178 g of moving mass. Drivers like this need large volumes but reward you with an even, deep-reaching response without a tight alignment – a profile that recalls classic large cabinets for cinema, bass guitar and home subwoofers rather than compact touring subs. Xmax is 8.5 mm, displacement volume 1,130 cm³.

Use and enclosure

EBP 73 allows both enclosure types. The vented guideline makes full use of the 25 Hz lower limit: 431 l tuned to 28 Hz with an f3 around 25 Hz. That is a very large cabinet, feasible in fixed installations or a home cinema with room to spare. Sealed, 202 l with fc at 52 Hz results; with Qts 0.48 the curve is well behaved, which is enough for music without extreme sub-bass and simplifies cabinet building considerably. Mounting depth is 218 mm, weight 11.2 kg.

The Beyma 18WRS600 with fs 30 Hz, Qts 0.47 and Vas 354 l is similarly soft and needs even more volume; the FaitalPRO 18FH500 with Qts 0.53 and Vas 450.1 l goes the same way. Because of the moderate 8.5 mm Xmax, set a high-pass below tuning in a vented box. As a subwoofer, cross it far below 1000 Hz; the inductance of 1.3 mH is uncritical there. Volume and port are quick to work out in the enclosure calculator at 42.audio.

What to look out for

  • 8 Ω nominal, Re 5.2 Ω: even mid-sized PA amplifiers make use of the 700 W AES.
  • 11.2 kg, mounting depth 218 mm.
  • Qts 0.48, Vas 236 l: vented guideline 431 l – plan the space or go sealed at 202 l.
  • Xmax 8.5 mm: moderate excursion, set a high-pass below 28 Hz in a vented box.
  • Lower limit 25 Hz: real deep bass only comes from a large cabinet.

Frequently asked questions

Is the 18LX60V2/S suitable for home cinema?

Yes, that is exactly where it plays to its strength: a sealed box around 202 l with fc at 52 Hz is straightforward to build and can be equalised downwards with the AV receiver or a DSP. With 98 dB sensitivity and 700 W AES there is enough reserve for cinema levels. For maximum extension without equalisation, the 431 l vented guideline is the alternative.

18LX60V2/S or Beyma 18WRS600?

Both are softly suspended: Qts 0.48 versus 0.47. The 18WRS600 with fs 30 Hz and Vas 354 l needs even more volume, the 18LX60V2/S with Vas 236 l and a 4" voice coil stays somewhat more compact and brings 700 W AES. 42.audio carries both in the shop.

Which power amplifier suits the 18LX60V2/S?

700 W AES into 8 Ω is the continuous rating. Together with 98 dB sensitivity, an amplifier in that range into 8 Ω is perfectly sufficient; a high-pass below the tuning frequency protects the 8.5 mm Xmax.

Beyma 18LX60V2/S: manufacturer, spellings and classification

Beyma and Acustica Beyma refer to the same manufacturer: Acústica Beyma S.L. of Moncada near Valencia, Spain. The 18LX60V2/S is a 18-inch woofer from the LX series, available from 42.audio, Beyma dealer in Germany, with datasheet and full specifications in the driver database.

At 42.audio you get the BEYMA 18LX60V2/S with all key data in the driver database and the enclosure calculator. More drivers from this manufacturer: Atlas Beyma.

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs35 Hz
Total Q Qts0.48
Electrical Q Qes0.48
Mechanical Q Qms13.8
Equivalent volume Vas236.0 l
Moving mass Mms178.0 g
Cone area Sd1,255 cm²
Linear excursion Xmax8.5 mm
Displaced volume Vd1,130 cm³
Force factor BL19 Tm
DC resistance Re5.2 Ω
Voice coil inductance Le1.3 mH

Enclosure suggestion

The EBP of 73 is in the intermediate range — either works; sealed plays tighter, bass reflex deeper and louder. EBP = fs / Qes = 35 / 0.48

Sealed (Qtc 0.707)

Enclosure volume Vb
201.8 l
System resonance Fc
52 Hz
Cut-off frequency F3
52 Hz

Bass reflex (QB3 after Small)

Enclosure volume Vb
418.8 l
Tuning frequency Fb
29 Hz
Cut-off frequency F3
27 Hz

Vb is the required net internal volume, Fb the tuning frequency of the reflex port and F3 the frequency at which the level has dropped by 3 dB. Calculated approximation after Small. A starting point for simulation, not a finished build plan.

Comparable drivers

Same size, same type, Qts within ±30 %.

Specifications

Allgemein
Manufacturer BEYMA
Category Low Frequency
Series LX
Impedance (Ω) 8
Power handling (W) 700
Sensitivity (dB) 98
Frequency from (Hz) 25
Frequency to (Hz) 1000
Abmessungen & Korb
Diameter 18
Voice coil (inch) 4
Mounting depth (mm) 218
Weight (kg) 11.2
Thiele-Small-Parameter
Re (Ω) 5.2
Le (mH) 1.3
Fs (Hz) 35
Qms 13.8
Qes 0.48
Qts 0.48
Vas (l) 236
Xmax (mm) 8.5
Vd (cm³) 1130
BL (Tm) 19
Mms (kg) 0.178
Sd (m²) 0.1255