Classé Audio Delta Stereo - Power Amplifier

The Delta Stereo distills Classé's amplifier engineering into a compact, high-performance stereo component for situations where dual mono amplifiers can't be accommodated. The first 12.5W per channel run in pure Class A, with a total of 250W per channel (over 350W/channel into 2Ω) driving loudspeakers with confidence and exceptional channel separation.

• Up to 12.5W per channel delivered in pure Class A operation
• 250W per channel total
• Massive, high-quality power supply with custom toroidal transformer
• Hand-laid, 6-layer circuit boards for shortened signal and power pathways with lowest noise
• 22 4-pole Mundorf capacitors
• Custom-made Navcom feet to absorb vibrations
• Furutech rhodium-plated RCA and torque-guard speaker connectors
• Custom-designed illuminated VU meters displaying power output for both channels

• Continuous output power (1kHz, 0.1% THD+N): 12.5W/8Ω pure Class A, 250W/8Ω, 500W/4Ω, 350W/2Ω (AC line held constant)
• Frequency response: 1Hz–650kHz (-3dB, 50Ω source impedance)
• Harmonic distortion (500kHz BW, 25Vrms in 4Ω or 8Ω): <0.0016% at 1kHz, <0.002% at 10kHz, <0.003% at 20kHz
• Harmonic distortion (90kHz BW, 25Vrms in 4Ω or 8Ω): <0.0007% at 1kHz, <0.001% at 10kHz, <0.0025% at 20kHz
• Peak output voltage: 129Vp-p into 8Ω, 138Vp-p no load
• Input impedance: 82kΩ (1kHz, BAL/SE)
• Voltage gain: 29dB (1kHz, BAL/SE)
• Intermodulation distortion: <0.0018% (SMPTE 4:1), <0.004% (CCIF)
• Signal-to-noise ratio: 118dB, 120dBA weighted (22kHz BW)
• Crosstalk (one channel driven to 250W/8Ω): 124dB (100Hz), 107dB (1kHz), 90dB (10kHz)
• Slew rate: 75V/μs
• Output impedance: 0.009Ω (100Hz), 0.009Ω (1kHz), 0.012Ω (10kHz)
• Damping factor: 850 (1kHz, ref 8Ω)
• Dimensions: 17.50in (444mm) W x 19.37in (492mm) D x 8.74in (222mm) H
• Weight: 102.3lb (46.4kg) net, 116.4lb (52.8kg) gross