No. 27.5 vs Music Reference RM9
The RM9's power @ 4ω is 103W against the No. 27.5's 200W, its thd 0.500% against 0.300%, and its output impedance 0.3Ω against 50Ω. Both share power @ 8ω (100W).
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Estimated price (community-sourced)
Around — community and catalog average, updates slowly
The Mark Levinson No. 27.5 is a high-end stereo power amplifier from the early 1990s, renowned for its robust build quality, musicality, and performance from the 'golden age' of Mark Levinson. Produced around 1992-1995, it features a dual monaural architecture with massive power supplies and is praised for under-spec'd yet highly musical sound. Recently recapped units are available in excellent condition. It supports both single-ended (RCA) and balanced (XLR) inputs, with options for normal and inverting operation. No longer in production, it remains sought after in the used market.
Amplification power output and characteristics
Analog signal output specifications
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The RM9's power @ 4ω is 103W against the No. 27.5's 200W, its thd 0.500% against 0.300%, and its output impedance 0.3Ω against 50Ω. Both share power @ 8ω (100W).
The 331's thd is 0.500% against the No. 27.5's 0.300% and its output impedance 0.05Ω against 50Ω. Both share power @ 8ω (100W) and power @ 4ω (200W).
The AMP-F10's power @ 8ω is 200W against the No. 27.5's 100W, its power @ 4ω 320W against 200W, its thd 0.008% against 0.300%, and its output impedance 0.03Ω against 50Ω.
The KAV-500's thd is 0.030% against the No. 27.5's 0.300% and its weight 21.3 kg (47 lbs) against 43.1 kg (95 lbs). Both share power @ 8ω (100W) and power @ 4ω (200W).
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