Five channel power amplifier rated at 200W per channel into 8 ohms with all channels driven, and 400W into 4 ohms on any two. Balanced and single ended inputs in a slim 95 mm chassis. Out of production, privately owned and offered through Dreamcrest Audio, individually or within the complete collection. The Classe Sigma AMP5 is a five channel power amplifier rated at 200W per channel into 8 ohms with all five channels driven at once, which is the measurement that actually matters in a cinema. It fits in a single rack width chassis just 95 mm tall. The Sigma range is out of production and now sits in Classe's support archive rather than its current catalogue. This amplifier belongs to a private client and is offered through Dreamcrest Audio. Very good condition, supplied in its original packaging.What it doesIt takes five line level channels from a surround processor, over balanced XLR or single ended RCA, and drives five loudspeakers. The all channels driven rating is the point: many multichannel amplifiers quote a figure measured with one or two channels working, then sag when the whole soundtrack arrives at once. The AMP5 is specified at 200W with everything running, and 400W into 4 ohms on any two channels, so a difficult surround or height speaker stays within its comfortable range.How it sounds and where it fitsThis is an even handed, low noise amplifier rather than a showy one, measuring 100 dB below peak output into 8 ohms. In a large system it is the obvious partner for surround and height channels while three Sigma MONO monoblocks take the front three, and on its own it will run a complete 5.1 system well. It suits medium to large rooms and speakers of normal to slightly awkward sensitivity. Pair it with the Classe Sigma SSP MK2 for a matched front end.Key featuresFive channels rated at 200W rms into 8 ohms, all channels driven400W rms into 4 ohms, any two channels drivenBalanced and single ended inputsSignal to noise of 100 dB below peak output into 8 ohmsSingle rack width chassis only 95 mm tallPart of the discontinued Classe Sigma seriesTechnical specificationsFrequency response: 10Hz to 20kHz, 1 dB down into 4 ohmsTHD: 0.018% at 1kHz, all channels driven to one eighth power into 8 ohmsInput impedance: 100k ohms balanced, 50k ohms single endedDimensions: 433 mm wide, 370 mm deep, 95 mm highWeight: 10.48 kgPower consumption: 200 W at one eighth power into 8 ohmsCondition and what is includedVery good condition, supplied in its original packaging. The owner bought it new about three to four years ago. This unit belongs to a private client and is offered for sale through Dreamcrest Audio, which is not the owner. It is not new dealer stock, and no manufacturer warranty is offered or implied. Condition and inclusions are confirmed to you in writing before purchase.Frequently asked questionsIs 200W per channel enough for a large room?For most rooms and most speakers, comfortably. The figure is quoted with all five channels driven rather than one, so it is a conservative rating rather than an optimistic one.Can I use it alongside the Sigma MONO monoblocks?Yes, and that is how it was used here. The monoblocks take front left, centre and right, and the AMP5 handles surround and height channels from the same processor.Can I buy it on its own?Yes. It is sold individually, or as part of the complete Home Cinema Collection bundle from the same owner.To ask about condition or arrange a listen, use the enquiry button on this page.
Dreamcrest Audio Fidelity Ltd, Nicosia. Specialist hi-fi and high end audio, 20+ years in the audio business. Call or message for availability, demonstration and delivery.
