Classé Audio DELTA MONO

Technical characteristics

Audiophiles, recording professionals and equipment auditors consider Classé amplifiers a source of sound truth. The Delta series allows listeners to experience that truth in their homes.

Every detail of the Delta series is perfected by hand in our exclusive production plant in Japan to offer a powerful, natural and expanded sound with minimal noise or distortion.

Up to 35W in pure Class A, 300W per total unit
Massive and high quality power supply
Custom Toroidal Transformer
Delta MONO offers maximum clarity in everything you feel. Each detail communicates a natural and authoritative sound. A wide dynamic range with infinitesimal noise provides unsurpassed fidelity to the music source. Start listening.

Hand-printed circuits
6-layer circuit boards provide shortened signal and power paths with minimal noise
Fully balanced output stage and balanced circuit
22 Mundorf® 4-pole capacitors
Navcom® feet tailored to absorb vibrations
Furutech® rodented RCA connectors and Furutech® speaker connectors with anti-tortion protection
Delta MONO continues the reputation of Classé for monumental design. The amplifier creates an immediate presence in any environment or installation thanks to its unique shape and superb materials. The illuminated VU meter beautifully communicates the output with elegance and details. This is an amplifier that looks as iconic as it looks.

Harmony between minimal design and unparalleled performance
Luxurious anodized aluminium body
Custom, illuminated VU meters
It integrates perfectly with the other components of the Delta family
Thanks to the unique ICTunnelTM cooling technology, the Delta MONO is stackable and can be mounted in racks in a way that no conventionally cooled amplifier can match. The internal temperature is continuously monitored and controlled, ensuring performance in any configuration. In combination with the construction of Delta MONO, ICTunnel supports a lifetime of unparalleled amplification performance.

ICTunnel temperature control proprietary technology
Optimum temperature ignition in minutes
Active detection and optimal temperature adjustment of the amplifier
Low noise operation suitable for studio applications

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

Gross weight
111.6 pounds (50.6 kg)
Net weight
97.7 pounds (44.3 kg)
GENERAL

Frequency response
(-3dB, impedance of source 50Ω)
1Hz – 650kHz
Continuous output power
(at 1kHz, 0.1% THD+N)
C300W / 8Ω
600W / 4Ω
1000W / 2Ω (with constant maintained CA line)
Harmonic distortion
(size bandwidth:
500kHz, 25Vrms in 4 Ω or 8 Ω)
Harmonic distortion
(size bandwidth:
90kHz, 25Vrms in 4 Ω or 8 Ω)
Peak Output Voltage
(AC nominal line)
148Vp-p in 8Ω
156Vp-p without load
Input impedance
(at 1kHz, BAL / SE)
82k
Voltage gain
(at 1kHz, BAL / SE)
29DB
Intermodulation distortion
(SMPTE 4:1) (8Ω or 4Ω, BAL / SE)
Intermodulation distortion
(CCIF) (8Ω or 4Ω, BAL / SE)
Signal/noise ratio
(A wtd in parentheses) (22kHz BW)
117dB (119,5dBA)
Sleep rate
72V / μs
Output impedance
0.01Ω (100Hz), 0.011Ω (1kHz),
0.015Ω (10kHz)
Depreciation factor
(at 1kHz, ref. 8Ω) 700