P-4500 vs Jeff Rowland Design Group Model 2
The Model 2's power @ 8ω is 75W against the P-4500's 90W, its power @ 4ω 150W against 180W, its thd 0.050% against 0.020%, and its damping factor >100 against >700.
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower AmplifiersDiscontinued
Estimated price (community-sourced)
$4,145
Around — community and catalog average, updates slowly
About the P-4500
The Accuphase P-4500 is a premium stereo power amplifier designed for audiophiles seeking both power and finesse. It features a discrete semiconductor instrumentation amplifier topology, a triple Darlington 4-parallel complementary push-pull architecture, and a current feedback circuit for outstanding signal clarity and stability. The P-4500 is engineered to drive a wide range of speakers, including those with challenging impedance loads, thanks to its robust power supply and advanced output protection. Its design emphasizes low noise, high damping factor, and precise gain control, making it suitable for both critical listening and demanding speaker setups.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 90W @ 8Ω
- Power @ 4Ω
- 180W @ 4Ω
- Damping Factor
- >700
- Minimum Impedance
- 2Ω
- Input Sensitivity
- 1.1V RMS
- Input Impedance
- 40Ω
Analog Output
Analog signal output specifications
- THD
- 0.020%
- SNR
- 121 dB
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 465 × 190 × 427 mm (W × H × D)
- Weight
- 29.2 kg (64 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