Chord BerTTi Stereo Power Amplifier

Chord Electronics BerTTi Stereo Power Amplifier A compact 75 Wpc stereo power amplifier with ULTIMA dual-feed-forward topology, balanced and RCA inputs, custom MOSFETs, HF switch-mode power supply, and solid aluminum chassis The Chord Electronics BerTTi brings the company’s ULTIMA amplifier technology to a compact Table Top chassis. Rated at 75 W into 8 ohms, it is designed for systems where full-size power-amplifier performance is wanted without a full-size component footprint. BerTTi uses Chord’s latest ULTIMA dual-feed-forward topology, a circuit approach designed to monitor and correct the signal before the output stage. The result is a compact stereo power amplifier built around speed, low distortion, and control rather than brute-force size. Compact ULTIMA Power As the most affordable ULTIMA-technology stereo power amplifier in Chord’s lineup, BerTTi carries technology derived from the company’s larger amplifiers into a more accessible and system-friendly form. Its fully balanced design, custom MOSFETs, and HF switch-mode power supply are all part of that approach. Built for Table Top Systems BerTTi is a natural partner for Chord’s Hugo TT 2 DAC/preamp and Hugo M Scaler, creating a compact high-performance system with serious power amplification in the final stage. It also works as a standalone stereo power amplifier with any suitable preamp or DAC/preamp. Balanced and Unbalanced Connectivity Inputs include a stereo pair of balanced XLRs and a stereo pair of gold-plated unbalanced RCA connectors. The speaker outputs use gold-plated terminals, and a 12 V trigger input allows compatible partnering components to switch the amplifier on and off from standby. Features 75 Wpc output into 8 ohms Chord ULTIMA dual-feed-forward topology Fully balanced design Custom-made MOSFETs HF switch-mode power supply Two modified power supplies for increased performance Additional auxiliary power rail for the front end Stereo pair of balanced XLR inputs Stereo pair of gold-plated unbalanced RCA inputs Gold-plated speaker terminals 12 V trigger input Solid aluminum chassis Designed and handmade in the UK Included Accessories BerTTi quick-start guide Safety instructions 10 A mains IEC cable Specifications Output Power: 75 W into 8 ohms Power Consumption (Full Power): 240 W Power Consumption (Standby): 1 W Frequency Range: 5 Hz–100 kHz, ±0.5 dB THD: 0.008% Signal-to-Noise Ratio: 87 dB, A-weighted Input Impedance: 100 kΩ, unbalanced/balanced Input Sensitivity: 0.78 V Gain: 30 dB Dimensions (HWD): 2.3" x 9.3" x 10.1" (59 mm x 235 mm x 256 mm) Weight: 8.3 lb. (3.75 kg)