18SOUND 10W500
18SOUND (Eighteen Sound) 10W500 — 10" / 10 inch · Woofer/Midrange (WM) · Bass · Ferrite
2" voice coil · 8 Ω
Part no.: 42A-CHS-TT-18S-0026
Documents
18SOUND 10W500 — 10" · Woofer
280 W AES · 98 dB Sensitivity · Frequency range 55 Hz – 4500 Hz
Technical data
- Diameter: 10 "
- Voice coil: 2 "
- Power handling: 280 W AES
- Sensitivity: 98 dB
- Impedance: 8 Ω
- Magnet: Ferrite
- Weight: 4.7 kg
- Mounting depth: 121 mm
- Frequency range: 55 – 4500 Hz
Datasheet (PDF) · Manufacturer page
Series: W · Part no.: 42A-CHS-TT-18S-0026
18Sound 10W500: 10" ferrite mid-woofer with 98 dB and 280 W AES
98 dB sensitivity from a 10" driver with a ferrite magnet and a 2" voice coil: the 18Sound 10W500 from the W series is built for efficiency. A light cone with only 33 g of moving mass and a motor with BL of 14.6 Tm make it a woofer/midrange that produces a lot of level from little amplifier power. The 280 W AES rating is down to the 2" coil, and at 98 dB it is enough for most tops and monitors.
The parameters are classic vented-box material: Fs 53 Hz, Qts 0.29 and Vas 45.2 l. The relatively high compliance brings extension, the well damped motor keeps control. The frequency range runs from 55 to 4,500 Hz, Xmax is 5.5 mm. At 4.7 kg the driver is not heavy for ferrite, and the mounting depth of 121 mm stays moderate. The datasheet PDF is attached to the product.
Use and enclosure
The vented guide value is 19 l with fb 68 Hz and f3 78 Hz. At that size the 10W500 is a good candidate for compact 2-way tops and stage monitors that have to run without a subwoofer. The crossover to the tweeter can sit high thanks to the 4,500 Hz upper limit and the low inductance of 0.72 mH; a 1" compression driver on a horn from the 18Sound range is the typical partner. The EBP of 171 shows that a sealed box of 9.1 l at fc 129 Hz only makes sense as a midrange chamber.
With Xmax of 5.5 mm, excursion is the limiting factor at very high bass levels, so set the high-pass above 55 Hz when running with a subwoofer. Comparable in parameters are the B&C 10PS26 with Fs 54 Hz, Qts 0.29 and Vas 38 l and the FaitalPRO 10PR320 with Fs 48 Hz, Qts 0.29 and Vas 52.7 l; the neodymium 18Sound 10NW650 is the lighter alternative from the same manufacturer. All of them are in the driver database at 42.audio.
What to look out for
- 98 dB sensitivity: little amplifier power needed, 280 W AES goes a long way.
- 2" voice coil: thermally limited, a limiter is advisable for continuous use.
- Xmax 5.5 mm: high-pass above 55 Hz at high levels.
- Ferrite, 4.7 kg: rugged and affordable, uncritical for fixed installation.
- 8 Ω, Re 6 Ω: standard load, multiple units in parallel at 4 Ω.
Frequently asked questions
Is the 10W500 suitable for a stage monitor?
Yes, 98 dB sensitivity and a compact vented box of about 19 l as a guide value are ideal for monitors. The crossover to the horn can be placed flexibly thanks to the 4,500 Hz upper limit.
How much power does the 10W500 need?
Little. At 98 dB an amplifier well below 280 W into 8 Ω already delivers high levels. The 2" coil does not tolerate sustained overload, so use a limiter and a high-pass.
10W500 or 10NW650, which fits better?
The 10W500 has more efficiency at 98 dB and a ferrite magnet at 4.7 kg. The neodymium 10NW650 weighs less, has similar parameters with Fs 51 Hz and Qts 0.28, and is the lighter choice for mobile tops.
18Sound 10W500: manufacturer, spellings and classification
18Sound, 18 Sound and Eighteensound all refer to the same manufacturer: Eighteen Sound S.r.l. of Reggio Emilia, Italy. The 10W500 is a 10-inch woofer with ferrite magnet from the W series, available from 42.audio, 18Sound dealer in Germany, with datasheet and full specifications in the driver database.
At 42.audio you get the 18SOUND 10W500 with datasheet PDF, all key data in the driver database and the enclosure calculator. More drivers from this manufacturer: Atlas 18Sound.
Thiele-Small parameters
| Nominal impedance | 8 Ω |
|---|---|
| Resonance frequency fs | 53 Hz |
| Total Q Qts | 0.29 |
| Electrical Q Qes | 0.31 |
| Mechanical Q Qms | 4.22 |
| Equivalent volume Vas | 45.2 l |
| Moving mass Mms | 33.0 g |
| Cone area Sd | 350 cm² |
| Linear excursion Xmax | 5.5 mm |
| Force factor BL | 14.6 Tm |
| DC resistance Re | 6 Ω |
| Voice coil inductance Le | 0.72 mH |
Enclosure suggestion
The EBP of 171 suggests a bass-reflex enclosure. EBP = fs / Qes = 53 / 0.31
Sealed (Qtc 0.707)
- Enclosure volume Vb
- 9.1 l
- System resonance Fc
- 129 Hz
- Cut-off frequency F3
- 129 Hz
Bass reflex (QB3 after Small)recommended
- Enclosure volume Vb
- 15.2 l
- Tuning frequency Fb
- 74 Hz
- Cut-off frequency F3
- 86 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 %.
- B&C Speakers 10PS26fs 54 Hz · Qts 0.29 · Vas 38 l · in the database
- PRV Audio 10MB500-4fs 55.6 Hz · Qts 0.29 · Vas 47.6 l · in the database
- FaitalPRO 10PR320fs 48 Hz · Qts 0.29 · Vas 52.7 l · in the database
- FaitalPRO 10FH520fs 60 Hz · Qts 0.29 · Vas 23.5 l · in the database
- 18 Sound 10NW650fs 51 Hz · Qts 0.28 · Vas 48 l · in the database
- B&C Speakers 10NDL64fs 58 Hz · Qts 0.3 · Vas 34.5 l · in the database
Specifications
| Allgemein | |
|---|---|
| Manufacturer | 18SOUND |
| Category | Low Frequency |
| Series | W |
| Magnet | Ferrite |
| Impedance (Ω) | 8 |
| Power handling (W) | 280 |
| Sensitivity (dB) | 98 |
| Frequency from (Hz) | 55 |
| Frequency to (Hz) | 4500 |
| Abmessungen & Korb | |
|---|---|
| Diameter | 10 |
| Voice coil (inch) | 2 |
| Mounting depth (mm) | 121 |
| Weight (kg) | 4.7 |
| Thiele-Small-Parameter | |
|---|---|
| Re (Ω) | 6 |
| Le (mH) | 0.72 |
| Fs (Hz) | 53 |
| Qms | 4.22 |
| Qes | 0.31 |
| Qts | 0.29 |
| Vas (l) | 45.2 |
| Xmax (mm) | 5.5 |
| BL (Tm) | 14.6 |
| Mms (kg) | 0.033 |
| Sd (m²) | 0.035 |