DELTA Stereo – Classe

DELTA Stereo

The Delta STEREO distills all of Classé’s innovation and knowledge into a compact high-performance stereo amplifier.

In situations where dual mono amplifiers can’t be accommodated, Delta STEREO offers uncompromizing performance in a single component.

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

• Frequency Response – (-3dB, 50Ω source impedance) 1Hz – 650kHz;
• Continuous Output Power (at 1kHz, 0.1% THD+N) 12.5W / 8Ω delivered in pure class A operation; 250W / 8Ω, 500W / 4Ω (with AC line held constant); 350W / 2Ω (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);
• Damping Factor (at 1kHz, ref 8Ω) – 850