Delta MONO continues Classé’s reputation for monumental design. The amplifier creates an immediate presence in any room or installation through its unique form and superb materials. The illuminated VU meter beautifully communicates output with elegance and detail. This is an amplifier that looks as iconic as it sounds.

Harmony between minimal design and unrivalled performance
Luxurious anodized aluminum body
Custom, illuminated VU meters
Perfectly complements other components in the Delta family
Thanks to the unique ICTunnel™ cooling technology, Delta MONO is stackable and rackable in a way no conventionally-cooled amplifier can match. Internal temperature is continuously monitored and controlled, ensuring performance in any configuration. Combined with Delta MONO’s construction, ICTunnel supports a lifetime of unrivalled amplification performance.

Proprietary ICTunnel™ temperature regulation technology
Power-on to optimal temperature in minutes
Active sensing and regulation of optimal amplifier temperature
Low-noise operation suitable for studio applications
OVERALL DIMENSIONS
Width
17.50 in (444 mm)
Depth
19.37 in (492 mm)
Height
8.74 in (222 mm)
WEIGHT
Gross Weight
111.6 lbs (50.6 kg)
Net Weight
97.7 lbs (44.3 kg)
GENERAL
Frequency Response
(-3dB, 50Ω source impedance)
1Hz – 650kHz
Continuous Output Power
(at 1kHz, 0.1% THD+N)
C300W / 8Ω
600W / 4Ω
1000W / 2Ω (with AC line held constant)
Harmonic Distortion
(measurement bandwidth:
500kHz, 25Vrms in 4Ω or 8 Ω)
<0.0016% at 1kHz
<0.0018% at 10kHz
<0.0028% at 20kHz
Harmonic Distortion
(measurement bandwidth:
90kHz, 25Vrms in 4Ω or 8 Ω)
<0.0005% at 1kHz
<0.0006% at 10kHz
<0.0015% at 20kHz
Peak Output Voltage
(nominal AC line)
148Vp-p into 8Ω
156Vp-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)
<0.001%
Intermodulation Distortion
(CCIF) (8Ω or 4Ω, BAL / SE)
<0.002%
Signal-to-Noise Ratio
(A wtd in parenthesis) (22kHz BW)
117dB (119.5dBA)
Slew Rate
72V / μs
Output Impedance
0.01Ω (100Hz), 0.011Ω (1kHz),
0.015Ω (10kHz)
Damping Factor
(at 1kHz, ref 8Ω)
700