300 watts per channel into 8 ohms, (and upwards of 500 into 4 ohms), this true dual-mono amplifier is powerful enough for practically any speaker. The clarity, power, nuance, and outright truthfulness of this amp is really amazing and represents a great value. SpecificationsFrequency response: <1Hz - 100kHz: -3dBTHD+N: 0.005%Power Output (per channel): 300W @ 8? | 500W @ 4?Noise: RCA: -112dB / XLR: -117dBInput Impedance: Unbalanced 7.5 k? / Balanced 30k?+ / 6k?-Dimensions: 17 or 19 W x 6.3 H x 15.5 or 17.75 (with front handles) DWeight: 42 lbs / 19 kg

Bryston 4B3 Cubbed - Power Amplifier (black with blue leds) in excellent condition. No original package but it will be professionaly packed in a box from a similar as a weight and size amplifier. Shipping via courier with insurance. FeaturesBalanced XLR and Single ended RCA input2 Channels each with fully independent power supplies including transformers300W into 8 ohms (and up to 500 into 4 ohms) per channelThe patented Salomie circuit found in all Cubed Series amplifiersSwitchable gain (23dB or 29dB)Fully convection cooled means no noisy fansMachined and anodized aluminum enclosure and dress panelLess than 500mW standby power consumptionSoftStart microprocessor controlled startup sequence wont trip circuit breakersDC trigger for automated turn on and turn offLegendary Bryston 20 Year Warranty