Classe Power Amplifier Delta Stereo

AMPLIFICATION

The first 12.5W of power output are pure Class A, and with a total of 250W per channel at its command (over 350W/Ch @ 2Ω), this compact, powerful amplifier drives loudspeakers with utmost confidence.

• Up to 12.5W per Channel delivered in pure Class A operation
• 250W per Channel total
• Massive, high-quality power supply
• Custom toroidal transformer

CLARITY

Delta STEREO delivers exceptional clarity. Every effort has been made to preserve complete separation between channels, delivering the natural, expansive sound that Classé is legendary for.

• Hand-laid circuit boards
• 6-layer circuit boards provide 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

DESIGN

Delta STEREO has presence. It’s capabilities are expressed through design and it looks fantastic in any room or installation.
Superb material finishes and a pair of custom-designed illuminated VU meters display power output for both channels beautifully.
Delta Series design concept is to create a monument to sound. This amplifier looks every bit has capable as it sounds.

Specifications

GENERAL

Frequency Response (-3dB, 50Ω source impedance) 1Hz – 650kHz
Continuous Output Power (at 1kHz, 0.1% THD+N) 250W / 8Ω (12.5W in pure Class-A operation) 500W / 4Ω (with AC line held constant)
Harmonic Distortion (measurement bandwidth: 500kHz, 25Vrms in 4Ω or 8 Ω) <0.0016% at 1kHz, <0.002% at 10kHz, <0.003% at 20kHz
Harmonic Distortion (measurement bandwidth: 90kHz, 25Vrms in 4Ω or 8 Ω) <0.0007% at 1kHz, <0.001% at 10kHz, <0.0025% at 20kHz
Peak Output Voltage (nominal AC line) 129Vp-p into 8Ω, 138Vp-p no load
Input Impedance (at 1kHz, BAL / SE) 82kΩ
Voltage Gain (at 1kHz, BAL / SE) 29dB
Intermodulation Distortion (SMPTE 4:1) (8Ω or 4Ω, BAL / SE) <0.0018%
Intermodulation Distortion (CCIF) (8Ω or 4Ω, BAL / SE) <0.004%
Signal-to-Noise Ratio (A wtd in parenthesis) (22kHz BW) 118dB (120dBA)
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 (at 1kHz, ref 8Ω) 850

Package Contents: Classe Power Amplifier Delta Stereo, Power cable, Manual.