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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 uncompromising performance in a single component.
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
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
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.
17.50 in (444 mm)
19.37 in (492 mm)
8.74 in (222 mm)
116.4 lbs (52.8 kg)
102.3 lbs (46.4 kg)
(-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)
500kHz, 25Vrms in 4Ω or 8 Ω)
<0.0016% at 1kHz
<0.002% at 10kHz
<0.003% at 20kHz
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
(at 1kHz, BAL / SE)
(at 1kHz, BAL / SE)
(SMPTE 4:1) (8Ω or 4Ω, BAL / SE)
(CCIF) (8Ω or 4Ω, BAL / SE)
(A wtd in parenthesis) (22kHz BW)
(one channel driven to 250W / 8Ω)
124dB (100Hz), 107dB (1kHz),
75V / μs
0.009Ω (100Hz), 0.009Ω (1kHz),
(at 1kHz, ref 8Ω)
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