NAD Silver Series S170 Preamp and S250 Power Amplifier

I am the original owner of these high performance, audiophile quality NAD Silver Series pieces, which I purchased new. These have been used very gently/sparingly (estimated at less than 25 hours in total) and each item is in perfect physical and working condition.

These Silver Series components are some of the most ambitious and sophisticated designs ever offered by NAD. Designed to be paired together, this listing includes both the S170 surround sound preamp and the S250 multi-channel amplifier. These are two very rare pieces, with minimal use and condition, and offer a great opportunity to upgrade an existing system or build a new one.

S170 Digital Surround Sound Preamp Processor
The S170 is a powerful and sophisticated digital surround sound processor that offers superlative performance and tremendous flexibility, combined with a very friendly user interface. Extensive input switching capabilities for video sources, digital sources, and analog sources can easily control even the most complex and sophisticated home theatre systems.

While you can find less expensive processors, the S170 offers a level of performance and value that is unmatched. Whether used as an analogue preamp in Stereo Bypass mode, or used to decode the latest formats from Dolby, DTS, and THX, the S 170i brings purity and dynamic realism to every listening experience.

• Dolby Digital, Dolby Digital EX, ProLogic II, DTS, DTS ES, DTS NEO:6, Matrix 7.1, THX EX 5.1/6.1/7.1 Decoding, Stereo Enhanced Stereo Surround Mode
• THX Ultra 2 certified
• Motorola DSP Processor
• NAD’s Proprietary EARS Surround Music Mode
• 24 bit/96kHz Compatible
• 24 bit Resolution DACs for all channels
• 10 Inputs: 6 Video (3 are full in/out), 4 Audio (1 is Tape Monitor In/Out loop)
• All Video Inputs are S-Video and Composite
• Component Video Input
• 6 Digital Inputs: 1 BNC, 3 Coaxial, 2 Optical; freely assignable to any input
• 2 Digital Outputs: 1 Coaxial, 1 Optical
• Ext 5.1 Input for connection of DVD-A
• Multi-Source 2nd Zone Stereo Output
• 3 x 12V Trigger Outputs
• IEC Detachable Power Cable
• NAD Link
• RS-232 Port for advanced control systems and software upgrade
• HTR-2 - 8 Device Illuminated Learning Remote with Macro function
• ZR-2 Second Zone Remote

• Power:
  • 125W x 5 continuous power (8 ohms)
  • 200W x 2 continuous power (8 ohms)
• Monoblock, Modular construction
• Differential, Class A input circuit topology
• Low loss, massive Holmgren* toroidal mains transformer
• Input gain control for each individual channel
• All inputs Gold Plated RCA
• Soft Clipping
• THX certification: Earned THX Ultra certification for its high performance, stability, and reliability
• 12V trigger for automated ON/OFF operation
• Construction: Each channel is built as an independent monoblock, eliminating inter-channel interference
• Power supply: Uses a large Holmgren-type power transformer for ample power reserves