Stereo 90 vs Stereo 90 Magnum
The Stereo 90 Magnum's class is AB against the Stereo 90's Tube. Both share power @ 8ω (90W), thd (0.100%), and output voltage (1.0V RMS).
AI-generated product photo — not official manufacturer imagery.
Stereo 90
Rogue AudioAmplifiersPower AmplifiersTube AmplifiersDiscontinued
Estimated price (community-sourced)
$1,300
Around — community and catalog average, updates slowly
About the Stereo 90
The Rogue Audio Stereo 90 is a high-end tube power amplifier delivering 90 watts per channel with ultra-wide bandwidth output transformers and a fully regulated high-voltage power supply. It uses four matched KT88 output tubes in a push-pull configuration, plus two 12AX7 and two 6SN7 tubes, and offers user-selectable triode or ultralinear operation. The amplifier includes heavy-duty gold-plated RCA inputs and binding posts, a built-in bias meter with manual bias adjustment, mechanically isolated transformers, and a heavy copper circuit board. It is specified at 5Hz to 50kHz ±1dB frequency response, <0.1% THD typical, and 18"W x 15.75"D x 7"H, 60 lb.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 90W @ 8Ω
- Amplifier Class
- tube
Analog Output
Analog signal output specifications
- THD
- 0.100%
- Output Voltage
- 1.0V RMS
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 457.2 × 177.8 × 400.05 mm (W × H × D)
- Weight
- 27.22 kg (60 lbs)
Key Specifications
Power: 90W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions