Audison Thesis TH quattro


Thesis amplifiers are 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 the digital technology in one unique product. The precious synergy with Full DA HD technology takes the in-car listening experience to a new level of excellence; the synthesis of a unique know-how employed in mobile audio reproduction.

TH quattro is a four-channel amplifier fully adjustable and entirely manageable by the internal microprocessor, for limitless system configurations.


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 Ohm).


Pure digital signal transfer with a resolution up to 24 bit / 96 kHz


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.


Provides the selection of four possible presets: Energy Saving, Hi-Current, Hi-AB Class and full A Class operation.


Inherited from the HV venti and making the most of THs extreme versatility, the complete crossover circuit of the TH amplifier is removable; a high-end sound quality solution.


Four Synchro-PWM power supplies allow for a very fast transient current response and to create a Dual Mono configuration.

Dual Power Hi-Current 

  • 4 Ohm – 160 W x 4 150 W x 2 + 540 W x 1 500 W x 2
  • 2 Ohm – 260 W x 4 250 W x 2 + 650 W x 1 700 W x 2
  • 1 Ohm – 340 W x 4

Dual Power A Class

  • 4 Ohm – 55 W x 4

Whats Included

  • TH quattro amplifier
  • Printed Quick Start Guide
  • 1.0 m AC Link (RJ-12) cable
  • 1.0 m AD Link (RJ-45) cable
  • 2.0 m USB cable
  • USB/AC Link converter
  • TH crossover kit composed of:
  • N. 2 TH-MXR stereo module
  • N.16 frequency set modules (SS1-SW1-SW2-WM1-WM2-MT1-WT1-MT2)
  • N. 4 CFB customizable modules
  • N. 4 Fixing screws and plastic bushing
  • Multispanner tooling
  • 100 A AFS spare fuse
    • ACNet Software
    • This Advanced Manual (.pdf) AC Link Drivers
    • USB-ACNet Drivers
    • Track_01. sine sweep (0 dB) – 10 min Track_02. white noise (-12 dB) – 15 min Track_03. pink noise (0 dB) – 10 min Track_04. sine wave 50 Hz (0 dB) – 2 min Track_05. sine wave 1 kHz (0 dB) – 2 min