【AV quattro 4ch Power Amplifier｜An amplifier that delivers strong, natural sound in your car】

If you want a bit more headroom and thickness from the sound of your factory system or a commercially available navigation head unit, a 4-channel power amplifier such as the AV quattro is an effective solution—especially when the sound gets harsh as you turn the volume up, or when you feel that the speakers’ quality isn’t being brought out fully.

Developed as part of the VOCE series, this power amplifier incorporates technologies cultivated through the design of the Thesis series, while being engineered to be easier for a wider range of users to install. It supports 120W × 4ch at 4Ω stereo, and 200W × 4ch at 2Ω stereo, allowing you to drive your front and rear speakers with authority.

Adding an amplifier doesn’t simply mean getting louder. With extra power available to move the speakers, vocal and instrument sounds are less likely to get buried, and you can more easily feel the overall cohesion of the music even when listening at moderate volume. This model is for those who want to enjoy the songs you listen to every day in a more three-dimensional and satisfying way.

The inputs support not only pre-outs but also speaker-level input. Because the connection method varies depending on the vehicle’s system, it can be considered both if you want to improve sound while keeping the factory navigation unit, and if you want to integrate it into an existing audio system.

For the crossover, in addition to switching between high-pass and low-pass, it also supports a monaural low-pass for the Bch side. It can be used not only as an amplifier for the front speakers, but depending on your system configuration, you may also plan combinations that include a subwoofer.

However, the final result isn’t determined by choosing the amplifier unit alone. It will vary depending on speaker compatibility, power supply and wiring, mounting location, as well as gain and crossover settings. If I were setting this up, I would first check your current system and your usual listening style, then organize where AV quattro’s strength would be most effective.

Feel free to consult us even if you want to “add more body to the sound,” “make the most of the factory speakers,” or “you’re not sure whether to upgrade the speakers or add an amplifier first.” Let’s think together about a configuration that’s practical for your vehicle and how you use it.

Main Specifications

【General Information】

• Product name: AV quattro
• Type: 4ch power amplifier
• Crossover type: 2Way

【Rated Output】

• 4Ω stereo (14.4V): 120W × 4ch
• 2Ω stereo (14.4V): 200W × 4ch
• 4Ω bridged (14.4V): 200W × 2ch

【Crossover】

• Bypass: Supported
• High-pass: 50Hz～5kHz
• Low-pass: 50Hz～5kHz
• Bch monaural low-pass: 50Hz～500Hz
• High-pass slope: 12dB/oct
• Low-pass slope: 12dB/oct, 24dB/oct

【Performance】

• Frequency response: 4Hz～80kHz
• S/N ratio: 80dBA
• Total harmonic distortion: 0.04%
• Damping factor: 100

【Input/Output】

• Input sensitivity: 0.3～5V (Pre In)
• Input sensitivity: 1.4～24V (SPK In)
• Output impedance (stereo): 2～4Ω
• Output impedance (bridged): 4Ω

【Power & Size】

• Supply voltage: 11～15V
• Dimensions (W × D × H): 470 × 220 × 58mm

【Options】

• D/A converter: AV bit IN (sold separately)
• Subwoofer volume controller: VCRA (sold separately)