30 vs Jeff Rowland Design Group 125
The 125's power @ 8ω is 125W against the 30's 100W, its power @ 4ω 250W against 200W, its thd 0.008% against 0.005%, and its damping factor >1000 against >500.
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Estimated price (community-sourced)
Around — community and catalog average, updates slowly
The Model 30 is a high-end integrated stereo amplifier from Marantz, designed with a fully discrete, two-stage amplifier circuit to minimize interference and deliver pure sound. It incorporates Marantz's proprietary HDAM technology for signal purity and offers a rated output power of 100W per channel at 8 ohms and 200W per channel at 4 ohms. The amplifier supports multiple inputs including phono (MM/MC), CD, tuner, recorder, and line inputs, with high-grade terminals for phono and CD inputs. It features bass, treble, and balance controls, source direct mode, and Marantz original speaker terminals. The unit is finished in black or silver gold, measures 17.4" W x 5.1" H x 17" D, weighs 32 lbs, and is made in Japan. It is engineered for audiophiles seeking warmth, musicality, and precision in sound reproduction, backed by a 5-year warranty.
Amplification power output and characteristics
Analog signal output specifications
Input and output connections
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
Components that show up alongside the 30 in real systems. A verdict means the pair has been checked for compatibility and headroom — open it to see how the two get along.
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The 125's power @ 8ω is 125W against the 30's 100W, its power @ 4ω 250W against 200W, its thd 0.008% against 0.005%, and its damping factor >1000 against >500.
The A-S1200's power @ 8ω is 90W against the 30's 100W, its power @ 4ω 150W against 200W, its damping factor >200 against >500, and its thd 0.070% against 0.005%.
Both turn up in the same documented systems.
The E-307's power @ 4ω is 140W against the 30's 200W, its thd 0.010% against 0.005%, and its damping factor >100 against >500. Both share power @ 8ω (100W).
The PM10's power @ 8ω is 200W against the 30's 100W and its power @ 4ω 400W against 200W. Both share damping factor (>500) and thd (0.005%).
Yamaha A-S1100
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