Audio Products

Stereo valve preamplifier
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SP16

The power cord is our standard removable IEC. The most important control functions of the SP16, including Power, Mute, Processor, Input select, and Volume Up/Down, are accessible on the right side of the front panel via six soft-touch buttons. On the left side of the front panel (mirroring the control function cutout on the right) is an LED display indicating Input, Processor, Mono, and Mute, with...[more]

Stereo valve preamplifier

SP16L

The SP16 is completely single-ended with five sets of inputs (labeled Phono, CD, Tuner, Video and Aux) plus a Processor pass-through. There are two sets of main outputs for flexibility, plus a Tape out. The SP16 has a 12-volt trigger to turn on power amplifiers or other equipment, and full remote control of all functions including power, input selection, stereo/mono, volume, and muting. The powe...[more]

Stereo valve preamplifier

SP17

The Audio Research SP17 features low-noise JFET inputs in both the line- and phono-stages, and instead of 12AX7s you will find a 6H30 in each section – all of our preamplifiers now employ this high performance long-life tube. The same high-voltage regulator found in the LS17 and LS26 is now utilized in the  Audio Research SP17, and so is the same 103-step volume control – the SP16...[more]

Stereo valve preamplifier

SP20

Also for the first time, the Input selector is on the left, the Volume control is on the right.Through the touchscreen one can change Inputs, select Stereo or Mono, Mute, adjust Phase, adjust left-right Balance, and adjust the phono input Load (50, 100, 500, 1000 or 47k Ohms). Through a Settings menu, you can customize other items: change input names, adjust gain offset for each input, change volu...[more]

Stereo valve preamplifier
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