Progressive Audio A 902 Integrated Amp
€29,900.00
per Piece incl. VAT / incl. Shipping
Available in 7 days, delivery time 1-3 days
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Progressive Audio A902 – Pure Class-A performance and uncompromising circuitry
The Progressive Audio A902 integrated amplifier was developed with the goal of amplifying the music signal with minimal loss, maximum bandwidth, and complete independence from the connected speaker load. It combines a meticulously engineered circuit design with high-performance materials from the aerospace industry for uncompromising, lifelike music reproduction.
Technological design and circuit concept
The heartbeat of the A902 is its fully symmetrical, modular dual-mono design. The amplifier operates exclusively in pure Class A mode and delivers a true continuous power output of 100 watts. Thanks to its continuous bias current, the perceived dynamics and control are approximately ten times that of conventional Class A/B designs. The A902 drives even extremely inefficient loudspeakers (from 83 dB efficiency) with authority and stability.
Feedback-free bridge output stages with silicon carbide (SiC)
The feedback-free bridge output stages utilize state-of-the-art silicon carbide transistors . These semiconductors are characterized by extremely fast switching speeds and minimal memory effects. They enable impulse-true signal processing and contribute significantly to broadband, distortion-free signal amplification.
Teflon circuit boards for maximum signal purity
Progressive Audio uses Teflon as the base material for its circuit boards – a material primarily used in satellite technology. Teflon's extremely low dielectric constant reduces capacitance losses on the board to an absolute minimum. The result is a phase-linear frequency response from 1 Hz to 1 MHz (±0.1 dB) , which transmits the audio signal to the loudspeakers without level loss or temporal distortion.
Precision control and housing design
Volume control is achieved via a relay-controlled resistor circuit in precise fine increments of 0.75 dB . This guarantees perfect channel balance and prevents the noise that occurs with conventional potentiometers.
The robust housing combines black aluminum with a high-gloss acrylic front. All functions can be controlled either directly on the front of the device or via the included remote control.
Technical data
Amplifier principle: Pure Class-A circuit
Circuit design: Fully symmetrical, dual-mono, modular design
Power stage: Feedback-free bridge power stages with silicon carbide transistors (SiC)
Circuit board material: Teflon (low-loss dielectric)
Continuous power output: 100 watts at Class-A
Frequency range: 1 Hz – 1,000,000 Hz (1 MHz) ±0.1 dB
Volume control: Relay-controlled in 0.75 dB steps
Recommended speaker efficiency: From 83 dB
Finish: Black anodized aluminum with high-gloss acrylic front
Operation: Controls on the front panel and system remote control (included)
Dimensions (W × H × D): 44 cm × 21 cm × 42 cm
Weight: 22.0 kg
| Color: | black |
|---|---|
| Condition: | New product |
| Device depth mm: | 42 |
| Device height mm: | 21 |
| Device width mm: | 44 |
| Power amplifier: | Stereo |
| Power amplifier channels: | 2 |
| Power per channel in W: | 70 |
| Product type: | Integrated amplifier |
Manufacturer
Progressive Audio
Ralf Koenen
August-Thyssen-Straße 13a
45219 Essen
E-Mail-Adresse: info@progressiveaudio.de
Safety Information
Product-specific safety instructions can be found in the operating manual.
