Audison Thesis HV Venti Amplifier Class A 2 Channel Dual Mono Amp 1600w RMS
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HV venti
Amplifier | 1600 W total power | 2 x 800 W @ 2ohm | A-class
"The Amplifier"
Absolute lack of compromise in achieving maximum performance is the mantra followed by the Audison R&D for the HV venti, a project with unique features. The total void of integrated operational circuitry allowed the engineers to work at higher voltages and with a Class biasing of the intermediate stages.
- Exclusive circuitry IGBT (Insulated Gate Bipolar Transistor).
- A Class preamplifier, intermediate stages and drivers.
- Dual Mono construction featuring four power supplies in Synchro-PWM
- configuration.
- Made exclusively with discrete components.
- Signal switching made exclusively with relays.
- Fully balanced input circuit.
- Power supply on separate board to eliminate interference.
- Dual Power’ function to switch between Hi-Current and Hi-Power.
- Bias Selector’ function to change the percentage in A Class.
- High quality crossover module supplied.
- 5 mm aluminium chassis connecting two side cooling ducts.
DUAL MONO CONSTRUCTION
Four Synchro-PWM power supplies allow a very fast transient current response and create a Dual Mono configuration.
MOSFET-BJT HYBRID CONFIGURATION
HV venti employs a unique output power stage topology, discrete IGBT, made by two Hitachi DMOS driving two pairs of complementary Sanken power BJT, each rated for 30A peak current and 200 W dissipation.
A-CLASS PREAMPLIFIER AND DRIVER
It is made of two groups, Front End pre-amplifier and control unit. The whole stage is balanced up to the driver outputs. The power supply voltage is 90 V and is specific for this stage and dedicated to the two separate channels. The separate 150 V power supply is thermally stabilized and A Class biasing. Input is balanced with the first stage, complementary JFET differential and the second stage, complementary BJT differential. The voltage amplifier is Cascode type with a buffer to drive the output stage.
Specification
Part Number: HV Venti
- Channels 2
- Class A-Class
- Hi Level Input Yes
- Low Level Input Yes
- Digital Input No
- Power supply voltage / fuse 11 ÷ 16 VDC
- Idling current 4.2 A
- Idling current when off 0.006 mA
- Consumption @ 14.4 VDC, 2Ω, Max Musical Power 90 A
- Remote IN 7 ÷ 16 VDC - 1 mA
- Distortion - THD @ 100 Hz, 4Ω, 70% Rated Power <0.05%
- Bandwidth A (-3 dB, 2 VRMS, 4 Ω): 4Hz ÷ 75 kHz
- S/N ratio A (A weighed @1 V): 100 dB
- Damping factor A (1kHz, 4 Ohms): 80
- Input sensitivity Pre-In Input sensitivity (high): 0.25 ÷ 1.6 VRMS Input sensitivity (low): 1 ÷ 7 VRMS
- Total Power RMS 1600 W
- Output Power (RMS) @14.4 VDC, 1% THD • 2 Ch: 400 W x 2 (4Ω)
- • 2 Ch: 800 W x 2 (2Ω)
- • 1 Ch: 900 W x 1 (4Ω)
- Adjustable Crossover No
- Input Type Pre IN: L/R (ABS)
- Filters Outputs Pre OUT (pre in bypass): L/R (ABS)
- Filter Pass A Crossover frequencies High pass & Low pass stereo 45 - 55 - 65 - 80Hz, 12dB/oct.
- Filter Pass B Crossover frequencies Lo-pass mono 45 - 55 - 65 - 80Hz, 24dB/oct.
- Fuse 100 A
- Other Fucntions Demo mode ext. supply: 12 VDC - 600 mA ; Ext. Cap terminals: 18 VDC cap min
- Weight 15 kg
- Dimension A 510 mm
- Dimension B 85 mm
- Dimension C 280 mm
What's Included
2 Year Warranty
- Audison HV Venti
About the brand
Audison
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