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$999,999,999,999
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A-75 Class-A Stereo Power Amplifier
Instrumentation amplifier topology using discrete semiconductors realizes ideal gain allocation. Balanced Remote Sensing optimizes efficiency of negative feedback. 10-parallel push-pull configuration in power amplification stage. The overall result is outstanding S/N ratio and amazingly high damping factor. Furthermore, constant-voltage drive handles even drastic speaker impedance fluctuations with ease. Power MOS-FETs and other carefully selected components and materials make this Pure Class A Stereo Power Amplifier a sheer delight to experience.
- Pure Class A stereo power amplifier with outstanding S/N ratio and very high damping factor
- Rated for 60 watts into 8 ohms and 480 watts into 1 ohm
- Power MOS-FETs in 10-parallel push-pull configuration
- Instrumentation amplifier principle
- All signal paths realized with discrete semiconductor components
- Balanced Remote Sensing principle
- MCS+ circuit topology
- Current feedback amplification principle
- Digital power value readout and bar graph voltage indication
- Support for bi-amping and bridged mode
Continuous Average Output power (20-20,000 Hz) |
Stereo Operation (both channels driven:
480 W/ch = 1-ohms load * 240 W/ch = 2-ohms load 120 W/ch = 4-ohms load 60 W/ch = 8-ohms load Monophonic Operation: 960 watts = 2 ohms load* 480 watts = 4 ohms load 240 watts = 8 ohms load Notes: Ratings marked. with * are for music signals only |
Total Harmonic Distortion |
Stereo operation ( both channels driven ) 0.07% with a 2-ohm load 0.03% with a 4 to 16-ohm load Monophonic operation (bridged connection) 0.05% with a 4 to 16 ohm load |
Intermodulation Distortion | 0.01% |
Frequency Response |
At rated continuous average output: 20 - 20 000 Hz + 0 - 0.2dB At 1 watt output: 0.5 - 160000Hz +0 - 3.0dB |
Gain |
28.0dB ( GAIN selector in MAX position) (Stereo/monophonic operation) |
Gain Selector |
MAX - 28dB -3dB - 25dB -6dB - 22dB -12dB - 16dB |
Output Load Impedance |
Stereo Operation: 2 to 16 ohms Monophonic Operation: 4 to 16 ohms * With music signals only, 1-ohm loads are permissible for stereo operation and 2-ohm loads for bridged operation. |
Damping factor | 1 000 |
Input Sensitivity ( with 8-ohm load) |
Stereo Operation 0.87V for rated continuous average output 0.11V for 1 watt output Monophonic Operation 1.74V for rated continuous average output 0.11V for 1 watt output |
Input Impedance |
Balanced: 40 Kilohms Line (unbalanced): 20 Kilohms |
Signal-to-Noise Ratio (A-weighted, with input shorted) |
122dB (GAIN selector in MAX position) 128dB (Gain selector in -12dB position) At rated continuous average output |
Output Level Meter |
Digital Power Meter: Indicates output power (W) with 5 digits Display range switchable AUTO / 10W / 100W / 1000W Bar graph meter: Represents output voltage values (dB) using 38 points Hold time: 1 second / infinite selectable *Display off switch provided |
Power Requirements | 120/220/230 V AC, 50/60 Hz |
Power Consumption |
260 watts idle 520 watts in accordance with IEC 60065 |
Maximum Dimensions |
Width: 465mm (18.31") Height: 238mm (9.37") Depth: 515mm (20.28") |
Mass |
43.9kg (96.8 lbs) net 54.0kg (119.0 lbs) in shipping carton |
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Our refund policy operates in a 30-day window - after this time we are unable to accept the product and cannot issue a refund. Don't worry, our products are hand picked from thousands of luxury brands to ensure you are only offered the best of the best so we doubt you'll need to consider this policy at all. If you are concerned about making the wrong decision when it comes to your purchase, please feel free to talk with our team of experts who can advise you on equipment based on your personal music taste, aesthetics, and the layout of your listening room. Still not convinced? Discuss the possibility of a loan (trial period) with our experts and hear the difference yourself.

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