BEYMA 18LX60V2/S
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
Documents
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 impedance | 8 Ω |
|---|---|
| Resonance frequency fs | 35 Hz |
| Total Q Qts | 0.48 |
| Electrical Q Qes | 0.48 |
| Mechanical Q Qms | 13.8 |
| Equivalent volume Vas | 236.0 l |
| Moving mass Mms | 178.0 g |
| Cone area Sd | 1,255 cm² |
| Linear excursion Xmax | 8.5 mm |
| Displaced volume Vd | 1,130 cm³ |
| Force factor BL | 19 Tm |
| DC resistance Re | 5.2 Ω |
| Voice coil inductance Le | 1.3 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 %.
- Beyma 18WRS600fs 30 Hz · Qts 0.47 · Vas 354 l · in the shop
- Beyma 18LEX1600Ndfs 33 Hz · Qts 0.43 · Vas 231 l · in the shop
- FaitalPRO 18HP1030fs 35 Hz · Qts 0.41 · Vas 185.5 l · in the database
- FaitalPRO 18FH500fs 30 Hz · Qts 0.53 · Vas 450.1 l · in the database
- 18 Sound 18TLW3000fs 33 Hz · Qts 0.41 · Vas 185 l · in the shop
- FaitalPRO 18HP1010fs 35 Hz · Qts 0.4 · Vas 240.1 l · in the database
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 |