AMP300 vs Alesis RA500
The RA500's power @ 4ω is 250W against the AMP300's 235W, its signal-to-noise 105 dB against 110 dB, and its thd 0.500% against 0.200%. Both share power @ 8ω (150W).
AI-generated product photo — not official manufacturer imagery.
AMP300
AudioSource Inc.AmplifiersPower AmplifiersDiscontinued
Estimated price (community-sourced)
$125
Around — community and catalog average, updates slowly
About the AMP300
The AudioSource AMP300 is a reliable audiophile stereo power amplifier offering 150 watts per channel into 8 ohms and 235 watts per channel into 4 ohms with less than 0.2% total harmonic distortion plus noise (THD+N). It features a toroidal power supply for low distortion, signal sensing auto-on/off, 12-volt trigger ports for custom configurations, and bridgeable outputs delivering up to 470 watts mono at 8 ohms. The amplifier supports high- and low-level inputs, RCA and binding post connectors, and an A/B speaker selector for multi-room amplification. It has a frequency response of 20Hz to 20kHz (±0dB), a signal-to-noise ratio of approximately 110dB, and weighs about 28.6 lbs. The unit measures 16.5" x 14" x 5.3" and was first available circa 2006. It is made in China and is known for its clean power delivery and durability, suitable for demanding audio setups.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 150W @ 8Ω
- Power @ 4Ω
- 235W @ 4Ω
- Minimum Impedance
- 2Ω
Analog Output
Analog signal output specifications
- THD
- 0.200%
- SNR
- 110 dB
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- RCA
- Analog Outputs
- RCA
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 355.6 × 134.6 × 406.4 mm (W × H × D)
- Weight
- 12.95 kg (29 lbs)
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