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Classe Sigma SSP AV Processor

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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 17.0” (433mm)  Depth (excluding connectors): 14.57” (370mm)  Height: 3.75” (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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We offer FREE delivery to the mainland UK (excluding Channel Islands, Isle of Man, Isle of White, Isles of Scilly, and some of the remote Scottish Isles).

For other areas please contact us for a quote. Select items can be delivered internationally by prior agreement. Again please contact us for a quote. We will always do our best to help.

Our aim is to dispatch goods within 2 working days of an order being placed. Please allow 5 working days from the time of your order to receipt of item. If an order is expected to take longer than this our order fulfillment department will contact you to inform you of this.

Where multiple items are ordered, we will dispatch them all in one package. If you have ordered any special or customized items, or items otherwise not immediately available, we will dispatch the order when all items are available. If you have any concerns regarding this, please contact us and we will do are very best to help you.

Nintronics Ltd, Unit 7, Martinfield Business Centre, Welwyn Garden City, AL7 1HG
Tel: 01707 320788 Email:

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