Ultrafide Ultra Sigma pre/power | U4PRE + U500DC | Brand new, never used
Ultrafide Ultra Sigma pre/power combination: U4PRE preamplifier and U500DC stereo power amplifier. Brand new, never used.
Ultrafide is the home audio brand of MC² Audio, the British company whose amplifiers have powered live and studio sound for three decades. Hand-built in Devon, England. New price: approx. €5,300 each, €10,500 for the pair.
U4PRE preamplifier
Class A circuits, minimum signal path, over-engineered toroidal power supply
10 inputs: 6 RCA, 4 XLR
Quad outputs usable simultaneously, 4 RCA and 4 XLR: ready for bi-amping, active speakers or subwoofers
Highly configurable MM/MC phono stage: gain from +35 to +71 dB in 3 dB steps, adjustable resistive and capacitive loading
Discrete class A/B headphone amplifier, 1.5 W
Digitally controlled analogue volume in 1 dB steps, OLED display, remote control
Expansion port for future modules
U500DC power amplifier
2 × 250 W into 8 Ω, 2 × 500 W into 4 Ω, stable into 2 Ω
Fully DC-coupled from input to output, Class A driver stage
Ultrafide's own "Ultra Sigma" class D output stage, fed by a massive 500 VA toroidal linear power supply
Dual-mono design with separate rectification per channel
Rear-panel switch for two voicings: "Pure Timbre" reference or "Vintage" warmth
XLR and RCA inputs, four pairs of binding posts for bi-wiring
Condition Both units are brand new and have never been used [or powered on]. The outer boxes were opened once by customs for inspection during import clearance. The units themselves have never been unpacked from their inner packaging. [Complete with all original accessories and documentation.] [Already customs-cleared in the EU: no import duties for EU buyers.]
Price € 6,500 for the pair.
Payment and delivery Bank transfer before dispatch, or cash on collection in Limassol, Cyprus. Viewing by appointment.
