B&K Reference 30 Preamplifier and Surround Sound Processor

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This is a clean and solid surround processor, which would also make a nice budget preamp within your built-in system or equipment rack. 

B&K Reference 30 Manual

General Specifications (see our photos for more information):

Decodes: Linear PCM to 24bit/96KHz Dolby Digital (EX), DTS (ES)
24 bit A/D Conversion
Analog Direct mode, 6.1 Analog Inputs

Component Video Switching (2 Sources)
S-Video Switching (7 sources)
Composite Video Switching (7 Sources)
1 Tape Loop, 1 Tape Loop / Zone B output
2 Digital Coax output
1 TOSLink Digital Output

Theater Master SL-9000 Remote
Dimensions: 3 1/2" H x 17" W x 10 1/2" D
MSRP: US$2,798 Circa 2000

The SkyFi Testing Process for Preamplifiers:

We start with a visual inspection of all internal components to make sure there are no signs of stress or aging. Capacitors are checked for telltale sings of bulging or leaking, resistors are checked for signs of overheating or cracking, and transistors are checked for signs of stress or damage. Special attention is paid to the power supply which is the most common source of failure for preamps. We then power up the unit and run a simple 1k sine wave while monitoring the low voltage output on an oscilloscope for signs of distortion or noise to get a baseline.

At this point we will lubricate and clean all switches and potentiometers (that are not sealed) with a high quality contact cleaner, and then re-test all functions for any signs of noise or scratching.

Final testing involves putting actual music through the preamplifier We have learned over time that some issues are only noticeable to a trained ear while listening to a familiar source material. Our test bench has reference vintage KEF speakers that we are super familiar with which will quickly reveal any discrepancies. Some preamps will then move into the listening room where they will be tested with our in-house reference system.

Please click here for detailed specifics regarding our specialized packing process that separates us from the rest.