RG7 5 vs Luxman M-900u
The M-900u's power @ 4ω is 300W against the RG7 5's 250W, its damping factor >700 against >800, and its output impedance 0.012Ω against 0.01Ω. Both share power @ 8ω (150W).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower Amplifiers
Estimated price (community-sourced)
$5,200.51 - $10,516.60
Around — community and catalog average, updates slowly
About the RG7 5
The Symphonic Line RG7 5, generally designated RG 7 MK5, is a high-current stereo Class A/B power amplifier from German manufacturer Symphonic Line. It uses a dual-mono topology, substantial power-supply storage, WBT speaker and signal terminals, and a very high quoted damping factor. Published specifications vary slightly by source and revision: the manufacturer and dealer listings cite 2 x 140 W into 8 ohms and a 2 Hz–300 kHz response, while other product literature cites 2 x 150 W into 8 ohms, 2 x 400 W into 2 ohms, and response extending to 500 kHz. The available sources indicate that the RG 7 MK5 remains listed in Symphonic Line’s current product/pricelist material, so it should not be classified as discontinued. The product name is sometimes written RG7 MK5 or RG 7 MK5.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 150W @ 8Ω
- Power @ 4Ω
- 250W @ 4Ω
- Amplifier Class
- AB
- Damping Factor
- >800
- Minimum Impedance
- 2Ω
Analog Output
Analog signal output specifications
- Output Impedance
- 0.01Ω
Connectivity
Input and output connections
- Analog Inputs
- symmetrical/balanced
- Analog Outputs
- WBT speaker terminals
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 470 × 160 × 320 mm (W × H × D)
- Weight
- 32 kg (71 lbs)
- Available Colors
- black, brushed silver (matt), chrome/high polish
Key Specifications
Power: 150W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions