

VAS 18-1700NC Speaker Driver
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Pre-estimated delivery date for the next batch: December 2025.
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- EU: Free shipping included
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The VAS 18-1700NC is a lightweight, high-efficiency 18" neodymium subwoofer driver built for powerful low-end performance in professional audio setups. With 3400W program power, a 5" copper voice coil, and an ultra-rigid carbon fiber cone, it delivers tight, clean bass with excellent transient response.
Its SH-grade neodymium motor and Klippel®-optimized design ensure low distortion and precision, while the 12-corner cast aluminum basket keeps the weight low and airflow high. Ideal for reflex, bandpass, and horn-loaded enclosures, this driver is made to move sound systems forward.
- 3400 W continuous program power capacity
- 97 dB sensitivity 1W/1m
- 30 Hz ~ 1000 Hz frequency response range
- 125 mm (5") high temperature inside/outside copper voice coil
- High temperature SH grade neodymium magnet
- Aluminium demodulating ring for lower distortion
- Ultra-strong carbon cone and dust cap
- Silicone double Conex damper
- BL/Re optimized for loaded applications
- Klippel® optimized motor and suspension design
- RoHS compliant
- Suitable for reflex, bandpass, or horn-loaded high SPL subwoofer systems
- Engineered in Germany
- Road-tested at Rototom Sunsplash, Reggae Geel, No Logo Festival
- VAS QC certified for European standards
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We offer a two-year warranty on all our products.

Driver specifications
1700W Nominal / 3400W Program
460 mm / 18 inch
30 ~ 1000 Hz
125 mm / 5 inch
8 ohm
Resonance Frequency: 32 Hz
Re: 5.4 ohm
Qes: 0.29
Qms: 13.6
Qts: 0.28
Vas: 178 liters
Sd: 0.1225 cm²
Xmax: ±13.5 mm
Bl: 34.4 T.m
Le: 1.34 mH
EBP: 112
Thiele-Small parameters are measured with Klippel DA LPM module after a high level 20 Hz sine wave preconditioning test and represent the expected long term parameters after a short term of use.
Black
Surround shape: Dodecagon
Cone shape: Straight
Magnet material: Neodymium
Former material: Glass fiber
Basket: Cast aluminium
Voice coil material: Copper
Woofer cone treatment: Carbon fibre with resin treatment
Reflex, Horn, Bandpass
Overall Diameter: 486 mm
Width Across Flats: 471 mm
Outer Bolt Circle: x6 M6 on 470 mm PCD
Baffle Cutout Diameter: 424 mm
Depth: 210 mm
Air volume occupied by driver: 9.6 l
Number of bolt holes: 12
15.4 kg




