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  5. Thesis HV venti

Thesis HV venti

800 Watt

Thesis HV venti

Technical Highlights

  • 2-channel amplifier, 1600W RMS, dual mono design.
  • Class A preamplifier, MOSFET-BJT hybrid, 90V supply.
  • Symmetrical input circuit, 100 dB SNR, 0.05% THD.
  • More technical details
€10,449.05
-5% €10,990.00 €10,449.05
2% discount with credit card

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ProductThesis HV venti

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datasheet
Audison-Thesis HV venti-2-Kanal Verstärker-masori-kaufen
€10,449.05
€10,990.00 €10,449.05

Thesis HV venti is a 2-Channel Amplifier from Audison with dual-mono construction and four synchro-PWM power supplies. The MOSFET-BJT hybrid configuration uses discrete IGBTs, two Hitachi DMOS, and two pairs of complementary Sanken Power BJTs, each designed for 30 A peak current and 200 W power loss. The Class A preamplifier and driver is symmetrically built up to the driver outputs, with 90 V supply for the front-end stage and two separate channels. A separate 150 V power supply is thermally stabilized and biased in Class A. The symmetrical input combines a complementary JFET differential and a complementary BJT differential; the voltage amplifier is implemented as a cascode with a buffer. The output power is 400 W x 2 at 4 Ohm, 800 W x 2 at 2 Ohm, and 900 W x 1 at 4 Ohm at 14.4 VDC and 1% THD, with a total RMS power of 1600 W. The bandwidth is 4 Hz to 75 kHz, the S/N ratio is 100 dB, and the damping factor is 80. Additional features include fully relay-switched signal routing, exclusively discrete components, Dual Power and Bias Selector functions, Hi and Low Level inputs, and a 5 mm aluminum housing with two side cooling channels.

Features
  • 2-Channel Amplifier
  • Dual-mono construction with four synchro-PWM power supplies
  • MOSFET-BJT hybrid configuration with discrete IGBTs; two Hitachi DMOS drive two pairs of complementary Sanken Power BJTs (each 30 A peak current, 200 W power loss)
  • Class A preamplifier and driver, symmetrically built up to the driver outputs
  • Fully symmetrical input circuit with complementary JFET differential (first stage) and complementary BJT differential (second stage)
  • Voltage amplifier as a cascode with buffer to drive the output stage
  • Separate power supply: 90 V for front-end and channels; separate 150 V power supply, thermally stabilized and biased in Class A
  • Manufactured exclusively with discrete components; signal routing exclusively via relays
  • Power supply on a separate board
  • Dual Power function to switch between Hi-Current and Hi-Power
  • Bias Selector to change the Class A percentage
  • Hi Level Input and Low Level Input
  • High-quality Crossover module included
  • 5 mm aluminum housing with two side cooling channels
Technical Specifications
  • Channels: 2
  • Amplifier Class: A-Class
  • Hi Level Input: Yes
  • Low Level Input: Yes
  • Digital Input: No
  • Supply Voltage: 11–16 VDC
  • Idle Current: 4.2 A
  • Idle Current when Off: 0.006 mA
  • Power Consumption at 14.4 VDC, 2 Ohm, maximum music power: 90 A
  • Remote IN: 7–16 VDC, 1 mA
  • Distortion (THD) @ 100 Hz, 4 Ohm, 70% rated power: < 0.05 %
  • Bandwidth (-3 dB, 2 VRMS, 4 Ohm): 4 Hz – 75 kHz
  • Signal-to-Noise Ratio (A-weighted @ 1 V): 100 dB
  • Damping Factor (1 kHz, 4 Ohm): 80
  • Input Sensitivity (Pre-In high): 0.25 – 1.6 VRMS
  • Input Sensitivity (Pre-In low): 1 – 7 VRMS
  • Total RMS Power: 1600 W
  • Output Power (RMS) @ 14.4 VDC, 1% THD, 2 channels at 4 Ohm: 400 W x 2
  • Output Power (RMS) @ 14.4 VDC, 1% THD, 2 channels at 2 Ohm: 800 W x 2
  • Output Power (RMS) @ 14.4 VDC, 1% THD, 1 channel at 4 Ohm: 900 W x 1
  • Adjustable Crossover: No
  • Input Type: Pre IN L/R (ABS)
  • Outputs: Pre OUT (pre in bypass) L/R (ABS)
  • Filter Pass A: High-pass & Low-pass stereo 45 / 55 / 65 / 80 Hz, 12 dB/Oct.
  • Filter Pass B: Low-pass mono 45 / 55 / 65 / 80 Hz, 24 dB/Oct.
  • Fuse: 100 A
  • Other Functions: 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

Frequently Asked Questions about Thesis HV venti

How does the dual-mono construction work in the Thesis HV venti Amplifier?

The dual-mono construction in the Thesis HV venti features four synchro-PWM power supplies that enable extremely fast transient response. This design separates the two audio channels, minimizing interference between them. Especially when reproducing complex audio signals, this results in clear and precise sounds. The separate power supply for each channel leads to improved stability and performance. This technology offers a significant advantage over conventional amplifiers by providing fine detail resolution and dynamics when playing music. If you value flawless stereo sound, this setup is ideal.

What power ratings does the Thesis HV venti provide at 2 Ohm and 4 Ohm?

The Thesis HV venti Amplifier from Audison delivers impressive power at a voltage of 14.4 VDC. At 4 Ohm, it offers an output power of 400 W per channel in a 2-channel operation. When you reduce the impedance to 2 Ohm, the power significantly increases to 800 W per channel. For operation in mono mode, it delivers 900 W at 4 Ohm. This flexibility in power delivery allows the amplifier to be adapted to a variety of speaker configurations and optimizes sound quality for different requirements. An optimal choice for lovers of powerful sound experiences.

What features does the preamplifier of the Thesis HV venti offer?

The preamplifier of the Thesis HV venti is built in a Class A configuration and offers a symmetrical circuit up to the driver outputs. It consists of a front-end preamplifier and a control unit with a specific supply voltage of 90 V. The separate 150 V power supply ensures that the unit is thermally stabilized. The input is equipped with a complementary JFET differential, while the voltage amplifier is provided with a cascode amplifier and a buffer for the output stage. This design contributes to uniform signal processing and minimizes distortion in audio playback.

What input options does the Audison Thesis HV venti offer?

The Thesis HV venti Amplifier is equipped with various input options to adapt to different audio sources. It features both high-level and low-level inputs to enable seamless integration into existing audio systems. The input sensitivity can be adjusted for high-level signals from 0.25 VRMS to 1.6 VRMS and for low-level signals from 1 VRMS to 7 VRMS. This flexibility allows the amplifier to be used with a variety of sources and to customize sound quality. The symmetrical input architecture ensures noise suppression and optimizes signal purity.

How does the HV venti ensure a low distortion rate at high power?

The Thesis HV venti is equipped with an advanced output stage topology based on a MOSFET-BJT hybrid configuration. This unique design uses discrete IGBTs and Sanken power BJTs, which together ensure excellent power delivery. With a distortion rate of less than 0.05% at 100 Hz and 70% rated power, the amplifier is capable of reproducing sound accurately and cleanly even at high power outputs. This low distortion is particularly beneficial for demanding musical pieces where fidelity to all audio details is crucial.

What role does the MOSFET-BJT hybrid configuration play in the Thesis HV venti?

The MOSFET-BJT hybrid configuration in the Thesis HV venti combines the advantages of MOSFET and BJT technologies to provide strong performance and efficiency. The output stage uses discrete IGBTs to control and drive power BJTs with high current handling and power loss. This architecture allows peak currents of 30 A and power losses up to 200 W, making the amplifier extremely durable and robust. The hybrid topology ensures excellent audio quality and delivers a powerful and clear sound image. This technology is crucial for the amplifier's exceptional sound dynamics and detail accuracy.

What crossover functions does the Audison Thesis HV venti offer?

The Audison Thesis HV venti is equipped with high-quality crossover modules that provide versatile filter options. The crossovers allow adjustments in high-pass and low-pass mode: In stereo mode, the amplifier offers high-pass and low-pass filters at frequencies from 45 Hz to 80 Hz with a 12 dB/octave slope. In mono operation, a low-pass filter is also available at frequencies from 45 Hz to 80 Hz, but with a 24 dB/octave slope. These versatile crossovers enable precise control of sound quality and ensure optimal adaptation to the connected speakers.

How does the Thesis HV venti optimize sound quality with its symmetrical circuit?

The Thesis HV venti Amplifier from Audison uses a fully symmetrical input circuit that helps minimize noise and interference. This architecture ensures that the signals from both channels are processed identically, resulting in higher sound purity. In audio technology, a symmetrical circuit is advantageous as it reduces external interference and improves signal quality. This is particularly important when it comes to accurately reproducing the finest acoustic details and elevating the audio experience to a new level. The symmetrical circuit directly contributes to the high-fidelity playback of the HV venti.

What are the dimensions of the Thesis HV venti and what should be considered during installation?

The exact dimensions of the Audison Thesis HV venti are 510 mm in length, 85 mm in height, and 280 mm in width. When installing the amplifier, these measurements should be taken into account to ensure that it can be securely mounted in the vehicle or at the desired location. At the same time, it is important to leave enough space for cooling, as the amplifier generates a lot of heat at high power levels. Inadequate ventilation can limit performance and shorten the lifespan of the amplifier. Therefore, the right installation location should be well thought out and prepared.

How do the Synchro-PWM power supplies affect the performance of the Thesis HV venti?

The four Synchro-PWM power supplies in the Thesis HV venti significantly enhance the efficiency and responsiveness of the amplifier. These power supplies are designed to ensure a stable voltage supply and enable fast impulse responses. This leads to better dynamic performance and precise signal control, even with rapid transients in the music. This technology minimizes distortion and preserves signal integrity while maintaining high efficiency. This is crucial for the flawless operation of the amplifier, especially when reproducing complex and energy-intensive musical pieces that require powerful and accurate amplification.

Manufacturer information/responsible person

Elettromedia SpA
62018 Potenza Picena (MC)
Strada Regina km 3,500
Italy

Contact person:
Simone Iampieri
Executive Director Assistant
T +39 0733 870 813
Elettromedia SpA
62018 Potenza Picena (MC) Italy
Strada Regina km 3,500
T + 39 0733 870 870

Contact: simone.iampieri@elettromedia.it

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