Classé Delta STEREO

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

 

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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
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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
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DESIGN

Delta STEREO has presence. Its capabilities are expressed in its 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.

DIMENSIONS

Width
17.50 in (444 mm)
Depth
19.37 in (492 mm)
Height
(including feet)
8.74 in (222 mm)
 

WEIGHT

Gross Weight
116.4 lbs (52.8 kg)
Net Weight
102.3 lbs (46.4 kg)

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)

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

Hear Classé at Command Performance today!