• Bryston 4B Power Amplifier
  • Bryston 4B Power Amplifier
  • Bryston 4B Power Amplifier
  • Bryston 4B Power Amplifier
  • Bryston 4B Power Amplifier
  • Bryston 4B Power Amplifier
  • Bryston 4B Power Amplifier

    Bryston 4B Power Amplifier

    Regular price $1,100.00
    Shipping calculated at checkout.
    Brand
    Bryston
    Condition
    • Bien (G)
    Color
    • Black
    Year
    1976

    Pickup currently unavailable at Entrepôt

    (AMP1006)

    Instagram @image.sonore

    1976

    Made in Canada

    250wpc

    Legendary first-generation Canadian model.  This model is renowned for its robustness, reliability, and ability to drive demanding speakers, making it a favorite among sound engineers and audiophiles.

    Main features

    • Type: Class AB2 transistor stereo power amplifier

    • Output power: • 250 watts RMS per channel into 8 ohms

    • 400 watts RMS per channel at 4 ohms

    • 800 watts RMS in bridged mode into 8 ohms A

    • Frequency response: 1 Hz to 100 kHz (+0/-3 dB at 1 watt) A

    • Total harmonic distortion (THD):  A < 0.01% at full power (20 Hz to 20 kHz)

    • Intermodulation distortion (IM):  A < 0.01% of 10 mW at full power

    • Signal-to-noise ratio: 100 dB below nominal output, 90 dB according to IHF A standard

    • Damping factor: > 500 at 20 Hz (referenced to 8 ohms) A

    Inputs and connectivity

    • Input impedance: 50 kΩ (unbalanced)

    • Input sensitivity: 1.40 V for 250 W into 8 ohms A

    Dimensions and weight

    • Chassis dimensions: 48.2 cm (L) × 13.3 cm (H) × 34.3 cm (D)

    • Weight: 22.7 kg A

    Cooling and design

    • Fanless design: the entire chassis acts as a heat sink

    • Black “thermal monolith” finish with rounded fins

    • Bicolor LEDs on the front panel for each channel (green = active, red = saturation) A