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תפריט 054-219-4545
טלפון
054-219-4545
03-620-6635
מיקום
המלאכה 9 חולון
תמונה ראשית

Thesis HV Venti | THE AMPLIFIER

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סרטון
תיאור המוצר
Audison has always aimed at the highest quality. Every product is unique. It is designed and developed in order to join the very best worldwide production; its special features make it peerless.
Sometimes, however, choices have to depend on technical reasons, on the fact the product must be easy to use, on market demands. Thesis line, which indicates absolute Hi-End audison products, aims at escaping this indisputable reality. Thesis is a direct link between audiophile designers and audiophile enthusiasts, who always, simply, look for the best in a common passion: listening to music.
Thesis HV venti is a stereo amplifier built accoridng to absolutely Hi-End parameteres.

• Innovative “Dual Power” function allows to configure the amplifier for two output power sets: Hi Current or Hi Power.
• “Dual Bias” selectors permit to change Class A percentage and the amplifier related idling current.
• Crossover module with selectable cut-off frequency provided as accessory. In order
to insert it, bypass module has to be removed, so that when the crossover isn’t used,
signal path is minimized.
• Cooling system realized with heatsink, natural convection, and a pair of fans for each heatsink side which let air flow within side cooling ducts.
• ASC (Amplifier Status Control): microprocessor based unit designed to manage every amplifier operations. It shows amplifier temperature, protection and others important information about its the status.
• Innovative output power stage topology, 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.
• Balanced Class A biased driver with separate 150V Flyback power supply.
• Thermally stabilized with central fan independent from the others on the side ducts.
• Fully balanced JFET differential input preamplifier with output buffer for control unit.
• ABS inputs and ABS bypass outputs, decoupled through two audio-grade polypropylene capacitors per channel.
• Four Synchro-PWM power supplies allow to obtain very fast transient current response and to realize Dual Mono configuration.
• Wide range of protections: power limiter in case of loudspeakers shortcircuit or overload, over 90°C thermal protections, power output terminals shortcircuit to vehicle chassis, battery protection operating with voltage lower than 11V or higher than 16V, DC at output terminals, power supply fuse.


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
PRE-AMPLIFIER:
– Balanced up to the driver output;
– 90 V separate power supply voltage.
FRONT END:
– ABS balanced inputs;
– Polypropylene capacitors decoupled input stage;
– JFET differential input stage;
– Two selectable gain levels;
– Balanced output buffer for the control unit;
– Thermally stabilized.
CONTROL UNIT:
– Sensitivity;
– L/R alignment;
– IN mode / OUT mode.
OUTPUT POWER STAGE:
– "Discrete" Insulated Gate Bipolar Transistor (IGBT) topology;
– 2 Hitachi DMOS drivers;
– 2 pairs of Sanken Power transistor;
– Balanced Class A biased driver with separate 150V Flyback power supply.
THERMAL PROJECT:
– 5 mm aluminium bottom plate;
– 2 side cooling ducts with 2 fans located at the ends of each duct;
– Small driver central cooling duct with independent fan;
– Cooling fan system managed by ASC.
מפרט טכני
  • Power supply :
    Power supply voltage:   11 ÷ 16 VDC
    Idling current when off:   0.006 mA
    Minimum idling current:
    Low BIAS:   Hi Curr. 4.2A   Hi Pow. 5.6A
    High BIAS:   Hi Curr. 6.5A   Hi Pow. 10.4A
    Consumption @ 13.8 VDC   Hi Curr. 90A(1Ω)   Hi Pow. 100A(2Ω)
  • Amplifier Stage :
    Distortion – THD (1kHz):   <0.05%
    Distortion – IMD (IHF):   <0.05%
    Bandwidth (-3 dB):   4Hz ÷ 75 kHz
    S/N Ratio (A weighed @1 V):   100 dB
    Damping factor (1kHz, 4 Ohms):   80
    Slew rate   >20V/µs
    Input sensitivity (high):   0.25 ÷ 1.6 VRMS
    Input sensitivity (low):   1 ÷ 7 VRMS
    Input impedance:   22 kΩ
    Load impedance:   Hi Curr. Hi Pow.
    Stereo   Hi Curr. 4 – 2 – 1Ω   Hi Pow. 4 – 2Ω
    Mono   Hi Curr. 4 – 2Ω   Hi Pow. 4Ω
    OUTPUT POWER (RMS) @13.8 VDC; THD 1%:
    Load (dual power)
    2ch 4Ω   Hi Curr. 200W    Hi Pow.400W
  • 2ch 2Ω   Hi Curr. 400W   Hi Pow. 800W
  • 2ch 1Ω   Hi Curr. 650W   Hi Pow. /
    Mono 4Ω   Hi Curr. 800W   Hi Pow. 1600W
    Mono 2Ω   Hi Curr. 1300W   Hi Pow. /
    Filters/Inputs :
    Pre IN:   L/R (ABS)
    Pre OUT (pre in bypass):   L/R (ABS)
    Crossover frequencies:
    High pass & Low pass stereo 45 – 55 – 65 – 80Hz, 12dB/oct.
    Lo-pass mono 45 – 55 – 65 – 80Hz, 24dB/oct.
  • Other Functions :
    Remote In:   7 ÷ 16 VDC – 1 mA
    Demo mode ext. supply:   12 VDC – 600 mA
    Cap terminals:   18 VDC cap min
    Fuse (strip):   100 A
  • Size :
    MAX SIZE (L x H x D):  
    510 x 85 x 280 mm
    WEIGHT:   15 Kg
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