For sale, we have an all original Carver M-500 Magnetic Field Power Amplifier. The amp comes to us in a complete system from the original owner. The unit is in perfect working order and in excellent physical condition with only minor blemishes. See the many pictures in the listing for further details.
On our bench, we opened the amp where it passed our visual inspection. Capacitors looked good with no bulging or signs of leakage. Resistors showed no signs of cracking or overheating, and the transistors showed no signs of damage.
We did and alignment on the amp as follows:
Power supply adjusted to factory spec
Biased Amp to factory spec
Calibrated the VU Meters to spec
The VU meter lights were upgraded to LED's that run cooler and provide better lighting.
We tested the amp using our Sencore PA81 amplifier analyzer. We ran a 1k sine wave into the amp, and on our scope each channel showed a clean sine wave. With the amp testing as it should, we then ran the unit in our bench for a day, and then in our house system for about a week. It's a great sounding, amp with plenty of power.
While working and calibrated to spec, the amp should be, and is a great candidate to be recapped at some point in the future.
We don't have the original box for this unit, but we take packaging and shipping seriously. We spare no expense and use heavy duty boxes, several inches of polyethylene foam on all sides of the unit, and use water activated, fiber reinforced tape on all seams.
Specifications:
Power output: 200 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.05%
Damping factor: 30
Input sensitivity: 1.4V
Signal to noise ratio: 100dB
Speaker load impedance: 4Ω (minimum)
Dimensions: 440 x 110 x 348mm
Weight: 10.5kg