Sumo Andromeda Class A/AB High-Current Stereo Power Amplifier (1982)
Sumo's class AB Andromeda features a full-wave, four-quadrant balanced topology providing total control over any loudspeaker connected to it, regardless of load type. It's four independent push-pull feedback loops maintain your speakers in absolute phase with the musical signal, resulting in perfect imaging and a wide soundstage. Andromeda achieves its astonishing accuracy through a combination of high power output - 200 watts per channel into 8 ohms and up to 350 watts into 4 ohms, and a complete lack of current limiting. Rather than introduce invasive circuitry to protect the amplifier, which results in restricted dynamic range and increased distortion, Sumo engineers installed extremely wideband, high-dissipation power transistors at the output. The dynamic range and awesome deep bass response of Andromeda are unapproached by any other amplifier.
CONDITION
SPENCERTIFIED- Fully certified by Spencer
Refurbished and SPENCERTIFIED
Tested and fully functional. Inputs, outputs, internal contacts, and control points cleaned with WD-40 Specialist Electrical Contact Cleaner. Idle stability verified. Output tested under load for thermal consistency. Cooling system and heatsinks cleaned.
Cosmetic Condition: 8/10
Functional Condition: 10/10
WHAT'S IN THE BOX?
- Sumo Andromeda Class A/AB High-Current Stereo Power Amplifier (1982)
Other information about the Sumo Andromeda Class A/AB
- Power output: 200 watts per channel into 8Ω (stereo)
- Frequency response: 20Hz to 20kHz
- Total harmonic distortion: 0.05%
- Damping factor: 200
- Input sensitivity: 1.8V
- Signal to noise ratio: 118dB
- Differential topology for low distortion and high accuracy
- Hybrid Class A/AB output stage
- High-current design suitable for demanding speakers
- Heavy front handles for rack mounting
- Dual channel outputs with robust binding posts
- Rear cooling ventilation
- Known for neutral, detailed, and dynamic sound
DIMENSIONS
- Width: 19 in
- Height: 7 in
- Depth: 10 in
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Weight: 16 lb
INPUTS
- Line Input x1 L/R (back)
OUTPUTS
- Speakers x2 L/R (back)
MANUFACTURE Place and Date
- Made in the U.S
- MFD. 1982
