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Audison Thesis TH quattro - 4 Channel Power Amplifier


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The Audison Thesis quattro is a fully adjustable four-channel amplifier, entirely managed by the internal microprocessor, for limitless system configurations.

Thesis amplifiers were born with the know-how and experience achieved with the HV venti, improved by the innovation of digital technology. The result is a perfect combination between the highest level of analog technology and the advanced features of digital technology in one unique product. The precious synergy with Full DA HD technology takes the in-car listening experience to a whole new level of excellence; the synthesis of unique engineering know-how employed in mobile audio reproduction.

Audison Thesis TH quattro - Product Features

  • Complementary differential circuitry with current mirror.
  • Cascode A Class driver with inverted complementary triplet power stages.
  • Integrated 24-bit / 192 kHz Hi-End DA converters.
  • Compatibility with Audison Full DA HD technology and Hi-Res audio files listening certification.
  • SPDIF and AD Link optical digital inputs that manage up to 8 digital channels on RJ-45 connector.
  • Dual Mono Construction featuring four power supplies in Synchro-PWM configuration.
  • Sensitivity control featuring 256 steps resistive switching for a resolution of 120 dB.
  • Energy Saving, Hi-Current, Hi-AB Class, A Class presets selectable in real time.
  • Digital control via integrated settings panel, DRC and PC Software.
  • High quality crossover module supplied.
  • Chassis extruded from solid aluminium and built using CNC machines.


  • Hi-Res audio - According to the definition of HiRes audio provided by JAS (Japan Audio Society -, HV venti far exceed the above 40 kHz bandwith analog requirement, providing an astonishing 5 ÷ 75k Hz (@ -3 dB, 2 VRMS, 4 Ω).
  • FULL DA HD - Pure digital signal transfer with a resolution up to 24 bit / 96 kHz
  • DIGITAL INPUTS AND OUTPUTS - Innovation is at the heart of the state-of-the-art digital decoding section. The S/PDIF optical input allows direct connection to digital sources with the ability to re-launch the digital signal to other Thesis amplifiers through the AD Link (Audison DigitalLink) system. Each amplifier features 192 kHz/24 bit PCM D/A conversion through a very high quality converter.
  • BIAS CONTROL - Provides the selection of four possible presets: Energy Saving, Hi-Current, Hi-AB Class and full A Class operation.
  • REMOVABLE CROSSOVER - Inherited from the HV venti and making the most of TH’s extreme versatility, the complete crossover circuit of the TH amplifier is removable; a high-end sound quality solution.
  • DUAL MONO CONSTRUCTION- Four Synchro-PWM power supplies allow for a very fast transient current response and to create a Dual Mono configuration.

Output power (RMS) @ 14.4 VDC, 1% THD:

Dual Power Mode - Hi Current:

4 Ch @ 4 Ω
4 Ch @ 2 Ω
4 Ch @ 1 Ω
3 Ch @ 4 Ω

3 Ch @ 2 Ω

2 Ch @ 4 Ω
2 Ch @ 2 Ω

160 W x 4
260 W x 4
340 W x 4
150 W x 2 +
540 w x 1
250 w x 2 +
650 w x 1
500 W x 2
700 W x 2

 Dual Power Mode - A Class: 4 Ch @ 4 Ω 55 W x 4

Further Information

Audison Thesis TH quattro - Tech Sheet

Audison Thesis TH quattro - User Manual

Builds featuring the Audison Thesis Quattro


We offer Free Delivery on orders to the UK Mainland over £100.


Our staff are passionate about what they do and can provide advice and assistance on your purchase.


You can return any unwanted and unused item within 30 days and get a full refund.


Orders can be placed on our fully SSL-secured checkout with Debit / Credit Cards or via PayPal, Apple Pay and Google Pay. 

The products we use and sell are of the highest quality and we trust them wholeheartedly, but every now and again a product has a fault that is covered under the manufacturers warranty.

In the event of such an occurance please contact us via email at to proceed with the warranty process.

Below is a list of all the Manufacturers warranty timeframes with any special instructions for extended warranties:


  • 1 Year Standard Manufacturers Warranty


  • 5 Years standard Manufacturers Warranty


  • 5 Years with Installation by an Authorised Installer (Studio Incar is an Authorised Installer)
  • 1 Year if you are doing your own Installation
  • 2 Years if you register the product with the UK supplier


  • 2 Years standard Manufacturers warranty


    • 1 Year standard Manufacturers warranty
    • 2 Years if you register the product with the UK supplier


    • 90 Days Standard Manufacturers Warranty
    • 3 Years Extended Warranty - Product Registration within 30 days of Purchase


    • 6 Months standard Manufacturers warranty


    • 1 Year standard Manufacturers warranty

    Chord Company

    • Lifetime Warranty


    • 2 Years on Car Audio Products - No Extendable Warranty
    • 2 Years standard Warranty on Home Audio Products
    • up to 8 Years Extendable Warranty on Home Audio Products when you register at Dynaudio


    • 1 Year Standard Manufacturers Warranty
    • 2 Years Extended Warranty when registered with Focal


    • 2 Years Standard Manufacturers Warranty


    • 1 Year standard Manufacturers warranty
    • 2 Years if you register the product with the UK supplier

    HiFi Rose

    • 2 Years Standard Manufacturers Warranty

    iFi Audio

    • 1 Year Standard Manufacturers Warranty

    JL Audio

    • 1 Year for Speakers and Subwoofers
    • 2 Years for Amplifiers and Processors


    • 3 Years Standard Manufacturers Warranty


    • 1 Year Standard Manufacturers Warranty

    Peachtree Audio

    • 2 Years Standard Manufacturers Warranty
    • 3 Years Extended Warranty if Registered with Peachtree


    • 2 Years Standard Manufacturers Warranty
    • 3 Years Extended Warranty if Registered with Pro-Ject


    • 4 Years for Passive Loudspeakers
    • 1 Year for Active Loudspeakers / Subwoofers
    • 5 Years for Passive Loudspeakers if Registers with Q Acoustics
    • 2 Years for Active Loudspeakers / Subwoofers if Registered with Q Acoustics


    • 1 Year Standard Manufacturer Warranty


    • 1 Year Standard Manufacturer Warranty


    • 2 Years Standard Manufacturers Warranty
    • 3 Years Extended Warranty if registered with Wharfedale
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