




VAS 4-Way Compact Preamp by Mostec
The VAS Audio 4-Way Compact Preamp by Mostec is built for high-performance sound control, making it the go-to preamp for professional audio setups. Designed in collaboration with Mostec, a name synonymous with high-quality audio engineering, this preamp is optimized for use with VAS Audio’s Simba and Faya sound systems to ensure seamless sound reproduction across all frequency ranges. Its 4 output channels (Bass, Low Mid, Mid, and High) enable precise control, while the carefully engineered crossover frequencies ensure smooth transitions across 25 Hz to 20 kHz.
With features like a 7-band graphic equalizer and additional controls for mic/aux inputs and effect returns, the VAS Audio preamp provides versatility and ease of use. The dual combo XLR/Jack inputs support both microphone and line-level signals, and the dual RCA inputs accommodate turntables, making this preamp ideal for live events, studio setups, and sound system control.
Compact and rack-mountable (2U), this preamp fits into any setup without compromising space or performance. The 85-260VAC power compatibility supports EU, UK, and USA standards, making it a versatile choice for international users. Experience unmatched clarity, powerful sound control, and seamless integration with VAS Audio’s Simba and Faya setups—perfect for sound engineers seeking high-quality, reliable equipment.
Due to limited stock, this product is currently available exclusively as part of the premium bundle with Faya and Simba 4-Way systems. Register for an account to receive exclusive notifications when it becomes available for individual purchase.
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We offer a two-year warranty on all our products.

Product specifications
Designed for 85-260VAC EU/UK/USA
25 Hz – 20 kHz
Bass: 25Hz - 90Hz (BTW 24)
Low Mid: 60Hz - 160Hz (BTW 24)
Mid: 160Hz - 1.4kHz (LR24)
High: 1.4kHz - 20kHz (LR24)
Hard steel black coated
- Dual Mic/Aux Inputs (Combo XLR/Jack)
- Line Input (Dual RCA + Combo XLR/Jack)
- Turntable Input (Dual RCA with GND Bolt)
- 4 x Dual XLR Outputs (Bass, Low Mid, Mid, High)
- 7-Band Graphic Equalizer
- Effect Send and Return (Jack)
- Music Master Volume and Send Controls
- Volume/Bass/Treble/Send for Mic/Aux Inputs
- Effect Return Controls (Bass/Mid/Tops)
- 4 Kill Switches
Rack-Mountable
H: 9 cm 2U
W: 48.26 cm (19-inch rackable)
9 kg

Designed by the legendary Mostec, known for his advanced engineering and user-friendly controls

Precision 4-Way Frequency Control with 4 output channels covering bass, low mid, mid, and high frequencies

Built with a 2U rack-mountable form factor
Designed by the legendary Mostec, known for his advanced engineering and user-friendly controls
Precision 4-Way Frequency Control with 4 output channels covering bass, low mid, mid, and high frequencies
Built with a 2U rack-mountable form factor


