3B-ST vs IOTAVX AVXP1
The AVXP1's power @ 8ω is 110W against the 3B-ST's 120W, its power @ 4ω 170W against 200W, its signal-to-noise 110 dB against 106 dB, and its thd 0.060% against 0.007%.
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower AmplifiersDiscontinued
About the 3B-ST
The Bryston 3B-ST is a solid-state, THX-certified stereo power amplifier with a class-AB2 output stage, delivering 120 watts per channel into 8 ohms and 200 watts per channel into 4 ohms, with 400 watts available in bridged mono mode into 8 ohms. It uses a dual-mono design with separate power supplies and individual 225 VA toroidal transformers and large smoothing capacitors for each channel, supporting stable power delivery. The amplifier provides balanced XLR and unbalanced RCA inputs, with selectable gain via rear-panel switches, and incorporates a soft-start circuit to avoid tripping breakers or causing line surges. The compact 22 lb chassis measures 19" W x 5.25" H x 9" D and uses its metalwork as a heatsink, with front-panel clip LEDs for monitoring and protection. Key specifications include very low distortion (0.007% THD), a damping factor of approximately 500, wide 1 Hz to 100 kHz bandwidth, and a signal-to-noise ratio of around 106 dB. Designed and manufactured in Canada, the 3B-ST was widely adopted in both audiophile and professional environments as a robust, transparent power amplifier.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 120W @ 8Ω
- Power @ 4Ω
- 200W @ 4Ω
- Amplifier Class
- AB
- Damping Factor
- >500
Analog Output
Analog signal output specifications
- THD
- 0.007%
- SNR
- 106 dB
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 482.5 × 133 × 228 mm (W × H × D)
- Weight
- 10 kg (22 lbs)
Key Specifications
Power: 120W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions