Key Features

The Hegel C55 is a high-performance 5-channel power amplifier designed for those who demand the legendary “Hegel Sound” in a multi-channel or home cinema environment. Part of the versatile C5-series, it delivers 150W per channel into 8 ohms, doubling to 300W into 4 ohms, ensuring it has enough “oomph” to drive almost any loudspeaker on the market with ease. Unlike typical multi-channel amps that often compromise on musicality, the C55 is built with independent mono amplifier boards and dedicated power feeds, maintaining the same transparency and grip found in Hegel’s prestigious two-channel separates.

Technical superiority is achieved through the use of Hegel’s patented SoundEngine 2 technology. This error-canceling circuit works similarly to noise-canceling headphones, identifying and neutralizing distortion in real-time to ensure a smooth, natural soundstage. The result is an incredibly high damping factor of over 2000, which provides total authority over bass drivers for deep, punchy, and controlled low-frequency response. This technology also allows the amplifier to run with a low bias, meaning it stays cooler than traditional Class A/B designs—a critical feature for reliability in demanding installations.

Designed with professional integration in mind, the C55 is a 3U rack-mountable unit featuring integrated rack ears and adjustable rear supports. It offers unparalleled flexibility for system builders, with individually switchable gain and phase controls for each of the five channels, allowing for precise calibration in complex Atmos or multi-room setups. With both balanced XLR and unbalanced RCA inputs, plus 12V trigger connectivity for automated power control, the Hegel C55 is the ultimate foundation for a world-class home theater, mastering studio, or premium commercial audio system.

Product Specifications

Power output: 5 x 150/300/600 W into 8/4/2 ohms @ 1kHz 1% THD, 100/120/230V AC
Minimum load: 2 ohms
Analog Inputs: 5 x balanced (XLR), 5 x unbalanced (RCA)
Control Inputs: 1 x mini-jack 5-12 V trigger
Control Outputs: 1 x mini-jack 11,9 V trigger out
Gain control: Switchable between 23 dB or 29 dB (individual)
Phase control: Switchable 1/180 (individual)
Frequency response: 5 Hz – 100 kHz
Signal-to-noise ratio: More than 100 dB
Crosstalk: Less than -100 dB
Distortion: Less than 0.01% @ 100W 8 Ohms 1 kHz
Intermodulation: Less than 0.01% (19 kHz + 20 kHz)
Damping factor: More than 2000 (main power output stage)
Net Weight: 37,5 kg
Gross Weight: 43 kg
Net Weight US: 82 lbs
Gross Weight US: 95 lbs
Dimensions note: For precise installation dimensions, refer to user manual
Dimensions: 48,2 cm x 13,2 cm x 52 cm (BxHxD incl handles, ex feet)
Dimensions US: 18.97 in x 5.2 in x 20.47 in (BxHxD incl handles, ex feet)
Special features: Balanced and unbalanced inputs, Trigger in/out, Modular design, Adjustable rear rack mount, Gain & Phase selectors