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 @ 2ohms), this compact, powerful amplifier drives loudspeakers with utmost confidence.
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Up to 12.5W per Channel delivered in pure Class A operation
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250W per Channel total
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Massive, high-quality power supply
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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.
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Hand-laid circuit boards
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6-layer circuit boards provide for shortened signal and power pathways with lowest noise
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22 4-pole Mundorf® capacitors
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Custom-made Navcom® feet to absorb vibrations
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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.
OVERALL DIMENSIONS
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Width
17.50in (444mm)
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Depth
19.37in (492 mm)
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Height
8.74in (222mm)
WEIGHT
GENERAL
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Frequency Response (-3dB, 50ohms source impedance)
1Hz – 650kHz
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Continuous Output Power (at 1kHz, 0.1% THD+N)
12.5W / 8ohms delivered in pure class A operation
250W / 8ohms
500W / 4ohms (with AC line held constant)
350W / 2ohms (with AC line held constant)
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Harmonic Distortion (measurement bandwidth: 500kHz, 25Vrms in 4ohms or 8ohms)
<0.0016% at 1kHz
<0.002% at 10kHz
<0.003% at 20kHz
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Harmonic Distortion (measurement bandwidth: 90kHz, 25Vrms in 4ohms or 8ohms)
<0.0007% at 1kHz
<0.001% at 10kHz
<0.0025% at 20kHz
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Peak Output Voltage (nominal AC line)
129Vp-p into 8ohms
138Vp-p no load
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Input Impedance (at 1kHz, BAL / SE)
82kohms
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Voltage Gain (at 1kHz, BAL / SE)
29dB
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Intermodulation Distortion (SMPTE 4:1) (8ohms or 4ohms, BAL / SE)
<0.0018%
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Intermodulation Distortion (CCIF) (8ohms or 4ohms, BAL / SE)
<0.004%
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Signal-to-Noise Ratio (A wtd in parenthesis) (22kHz BW)
118dB (120dBA)
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Crosstalk (one channel driven to 250W / 8ohms)
124dB (100Hz)
107dB (1kHz)
90dB (10kHz)
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Slew Rate
75V / µs
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Output Impedance
0.009ohms (100Hz)
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0.009ohms (1kHz)
0.012ohms (10kHz)
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Damping Factor (at 1kHz, ref 8ohms)
850
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"A perfect performance, like a perfect 10 in the Olympics. The Classé Delta STEREO amplifier is a dream machine for music lovers and home theater enthusiasts living the audiophile lifestyle. [...] The only appropriate term for how the Classé Delta STEREO performed in my system is "perfectly."
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"Classé's new Delta PRE and STEREO amplifiers are a technical tour de force, with flawless performance. There is no aspect of the sonic performance that I can criticise. This combination has abilities well beyond the asking price, so is heartily recommended."
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"Classé’s Delta PRE and STEREO are impeccably designed and manufactured products that offer impressive operational flexibility and dependability. These two components are visually appealing and practical to install in a domestic setting. The Delta PRE and STEREO were a pleasure to operate and, more importantly, to listen to."
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