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Classé Sigma SSP Surround Sound Processor

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€8,950.00 / each
SKU: Classé Sigma SSP


Quick Overview:


The Sigma SSP is a 7.1 channel preamp/processor optimized for stereo but including HDMI switching, multichannel processing and bass management. Its wide variety of input connectors includes asynchronous USB and Ethernet for streaming, augmented by coax and optical; balanced and single-ended analog inputs plus an optional phono stage show how versatile this preamp/processor is despite its compact size. A host of performance-oriented features including digital domain tone/tilt control, and nine-band per channel parametric EQ ensure the best performance with each recording in every room.


USB audio

  up to 24-bit/192 kHz

USB (Host)


charging capability 2 Amps

AirPlay supported 

  AAC (8 to 320 kbps) 
Protected AAC (from iTunes Store), 
HE-AAC, MP3 (8 to 320 kbps), 
MP3 VBR, Audible (formats 2, 3, 4) 
Audible Enhanced Audio (AAX, and AAX+), 
Apple Lossless, AIFF, and WAV

DLNA supported 

  Apple Lossless (ALAC), mp3, FLAC, 
WAV, Ogg Vorbis, WMA, AAC

Frequency response 

  8 Hz - 200 kHz < 1 dB, stereo digital bypass 
8 Hz - 20 kHz < 0.5 dB, all other sources

Channel Matching 
(Left to Right)

  better than 0.05 dB

Distortion (THD+noise)

  0.0005%, digital source/bypassed 
analog source 
.002%, processed analog source

Maximum input level 

  2 Vrms (DSP), 4.5Vrms (bypass)

Maximum input level 

  4 Vrms (DSP), 9 Vrms (bypass)

Maximum output level 

  9 Vrms

Maximum output level 

  18 Vrms

Gain Range 

  -93 dB to +14 dB

Input impedance 

  100 kΩ (single-ended)

Input impedance 

  50 kΩ (Balanced)

Output impedance 

  100 Ω

Output impedance 

  300 Ω

Signal-to-noise ratio 
(ref. 4Vrms input, unweighted)

  104 dB, bypassed analog source
101 dB, processed analog source 
(re. full-scale input, unweighted) 
105 dB, digital source

Channel separation

  better than 100 dB

Channel matching 
(left to right)


>0.05 dB

(any input to any output)


better than -130 dB @ 1 kHz

Rated power consumption


35 W

Mains voltage


100-240 V, 50/60 Hz

Overall dimensions


Width: 433mm
Depth (excluding connectors): 370mm
Height: 95mm

Net weight


18 lb (8.21 kg)

Shipping weight

  25 lb (11.34 kg)

Made for
iPod touch (5th generation) iPod nano (7th generation)
iPod touch (4th generation) iPod nano (6th generation)
iPod touch (3rd generation) iPod nano (5th generation)
iPod touch (2nd generation) iPod nano (4th generation)
iPod touch (1st generation) iPod nano (3rd generation)

Made for
iPhone 5S iPhone 3GS 
iPhone 5 iPhone 3G
iPhone 4S iPhone
iPhone 4

Made for
iPad mini (with Retina display) iPad (3rd generation)
iPad Air iPad 2
iPad (4th generation) iPad
iPad mini

AirPlay works with iPhone, iPod, and iPod touch with iOS 4.3.3 or later, 
Mac with OS X Mountain Lion, and Mac and PC with iTunes 10.2.2 or later.


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