Quad ESL-63 Electrostatic Loudspeaker Base Mains Transformer PCB Spares Repairs

Quad ESL63 base with mains transformer (not the other ones but the covers are there), boards that you can see in the pictures and speaker terminals. Spares/Repairs sold as it. No returns.

Specifications

• Audio Inputs: 2
• Connectivity: wired
• Compatible Brand: Quad
• Year Manufactured: 1980s
• Transducer Type: Full-range electrostatic (ESL) dipole
• Nominal Impedance: 8 ohms (minimum 6.2 ohms)
• Mains Voltage: 240V
• Transducer Type: Full-range electrostatic (ESL) dipole — no dynamic drivers, no cabinet
• Nominal Impedance: 8 ohms (minimum 6.2 ohms)
• Sensitivity: 86 dB SPL / 2.83 V rms / 1 m
• Power Handling: 100 W continuous; 10 V rms / 40 V peak maximum signal input
• Amplifier Requirement: Amplifier must be short-circuit protected; output capability 40 V peak (100 W into 8 Ω) recommended; up to 55 V peak (190 W into 8 Ω) usable but to no advantage
• Frequency Response (measured, –6 dB): –6 dB at 40 Hz in-room (–6 dB at 32 Hz in nearfield); rolls off below ~55 Hz
• Radiation Pattern / Cabinet Alignment: Dipole (open-baffle, figure-of-eight radiation); no enclosure
• Dimensions (H × W × D): 36" H × 26" W × 6" D (base 10" D) / 91 cm × 66 cm × 15 cm