Audison Thesis HV Venti

£8,499.00

Audison Thesis car audio amplifiers are more than just a study in technology. The Audison Thesis car amplifier programme genuinely pushes the boundaries of car audio excellence and rewrites the rules of car audio amplification.

Description


“THE AMPLIFIER”

 

HV VENTI ORIGINATES FROM THE MERGING OF TWO LEGENDS: HR 100 MUSICALITY AND HV SEDICI POWER BLEND TOGETHER TO GIVE LIFE TO THE AMPLIFIER PAR EXCELLENCE

Each product, even of high quality, is subject to constraints defined in the design phase, based on the needs of the market. The difference between Thesis HV venti and any other amplifier is very simple, we have not applied any constraints.

Thesis HV venti was born with a unique target, to be the best amplifier in the world!

It represents the maximum expression of the Audison R&D staff, who have pushed themselves beyond the absolute without any brakes, looking for the perfect sound parameteres.

HV venti is a stereo Dual Mono amplifier realized according to absolute Hi End parameters. Four power supplies, low feedback, high bias current: these are only some of the adopted solutions to obtain reference performances.

Through the developing of HV venti project many technological innovations were introduced in audio field. Dual Power lets you set up final stage in two output power configurations, Hi Current or Hi Power. This function permits total conformation to loudspeakers impedance and power handling specifications.

The preamplifier PCB is able to dissipate the heat generated by the active devices while keeping their working temperature at the same level and positively affecting sound. In order to let you admire the masterpiece Audison designers created the electronics is covered by a special tempered scratchproof glass and it is lighted by several white, red and blue leds positioned in strategic spots.

Power Output 
Load Imp. Hi-Current Hi-Power
4 Ohm 200 W x 2
800 W x 1
400 W x 2
1600 W x 1
2 Ohm 400 W x 2
1300 W x 1
800 W x 2
1 Ohm 350 W x 2

Features

Audison Hi Res Audio
Hi-Res audio

According to the definition of HiRes audio provided by JAS (Japan Audio Society – jas-audio.or.jp), HV venti far exceed the above 40 kHz bandwith analog requirement, providing an astonishing 5 ÷ 75k Hz (@ -3 dB, 2 VRMS, 4 Ω).

Audison Thesis HV Venti

MOSFET-BJT HYBRID CONFIGURATION

Unique output power stage topology, FUNCTION discrete IGBT, realized with a complementary pair of Hitachi DMOS driving two pair of complementary Sanken power BJT, each rated for 30A peak current and 200W dissipation.

Audison Thesis HV Venti

DUAL POWER FUNCTION

A revolutionary function allowing the user to select the amplifiers output power configuration and the operating class.

Audison Thesis HV Venti

DUAL MONO CONSTRUCTION

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

Audison Thesis HV Venti

JFET DIFFERENTIAL STAGES

Fully balanced JFET differential preamplifier inputs with output buffer for control unit.

Technical Features

Built-in fuses:

  • Main fuse (strip fuse): 100A
  • For Hi Current configuration fuses are built-in (blade mini-fuses): 4 x 15A
  • For Hi Power configuration fuses are supplied (blade mini-fuses): 4 x 10A

Controls:

  • Inputs (IN MODE) – PRE ON/OFF: Balanced / Unbalanced
  • Output (OUT MODE) – PRE ON/OFF: Mono / Stereo
  • L / R Alignment – PRE ON: +3dB Right / +3dB
  • Left Sensitivity Ranges – PRE ON: High / Low
  • Sensitivity Control – PRE ON: High range: 0.25 ÷ 1.5V RMS / Low range: 1.0 ÷ 6.0V RMS

More features:

  • Dual power configurations: Hi Power / Hi Current check
  • Cooling system progressive start-up and speed control (every channel)
  • Optimum listening temperature indicator
  • Left and right VUmeter
  • Left and right peak distortion indicators

Protection:

  • Power limiting circuit in case of overload or speakers short circuit
  • Thermal (90°C / 194°F)
  • Cooling fans failure
  • Short circuit between cables, speakers and chassis
  • Battery power supply lower than 11V or higher than 16V
  • Direct current in the output

Power Supply

  • Voltage: 11 ÷ 16 VDC
  • Remote IN: 7 ÷ 16 VDC – 1mA
  • Idling current when off: 0.006 mA
  • Minimum idling current
  • Low BIAS:(Hi Current) 4.2A / (Hi Power) 5.6A
  • High BIAS: (Hi Current) 6.5A / (Hi Power) 10.4A
  • Consumption @ 13.8 VDC (Max. musical power): (Hi Current – 1 ohm) 90A / (Hi Power – 2 ohms) 100A

Amplifier Stage

  • Distortion – THD (1 kHz): <0.05%
  • Distortion – IMD (IHF: 90% of max. power): <0.05%
  • Bandwidth (-3dB): 4Hz ÷ 75kHz
  • Damping Factor (1 kHz, 4 ohms): 80
  • Slew Rate: > 20 Volts
  • S/N ratio (A weighed @ 1V): (PRE ON) 103 dB / (PRE OFF) 108dB
  • Input Sensitivity
  • SENSITIVITY switch on High: (PRE ON) 0.25 ÷ 1.5 VRMS / (PRE OFF) 1.4V RMS
  • SENSITIVITY switch on Low: (PRE ON) 1.0 ÷ 6.0 VRMS/ (PRE OFF) 1.4V RMS
  • Input impedance: (PRE ON) 15k ohms/ (PRE OFF) 100k ohms
  • Load impedance:
  • Stereo: (Hi Current) 4 – 2 – 1 ohms / (Hi Power) 4 – 2 ohms
  • Mono: (Hi Current) 4 – 2 ohms / (Hi Power) 4 ohms
  • Output power (RMS) @ 13.8V (THD 1%:
    • Load (Dual Power):
    • 2 CH into 4 Ohms: 200W + 200W (Hi Current) / 400W + 400W (Hi Power)
    • 2 CH into 2 Ohms: 400W + 400W (Hi Current) / 800W + 800W (Hi Power)
    • 2 CH into 1 Ohms: 650W + 650W (Hi Current)
    • Mono into 4 Ohms: 800W (Hi Current) / 1600W (Hi Power)
    • Mono into 2 Ohms: 1300W (Hi Current)

Input and Filters

  • Pre In: L/R (ABS connectors)
  • Pre Out (Pre In bypass): L/R (ABS connectors)
  • Crossover frequencies (factory optional module): 12dB stereo Hi pass and Lo pass ( 45 – 55 – 65 – 80 Hz ) 24dB mono Lo pass ( 45 – 55 – 65 – 80 Hz )