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C22

2-Channel Vacuum Tube Preamplifier Retro styling, modern performance 10 inputs, 4 outputs

C47

2-Channel Solid State Preamplifier Supports DSD64, DSD128 & DSD256 files 7 analog and 5 digital inputs

C52

2-Channel Solid State Preamplifier Supports DSD64, DSD128 & DSD256 files 8 band analog equalizer 16 inputs

D1100

2-Channel Digital Preamplifier Reference level digital preamp and DAC Use as a standalone unit or with C1100

D150

2-Channel Digital Preamplifier Supports DSD and DXD 2 Coax, 2 Optical, 1 USB Input

LS28

Line Stage Preamplifier The LS28 line stage is a flexible and intuitive preamplifier. Four balanced and four single-ended inputs, and two sets of both balanced and single-ended outputs, allow maximum connectivity. The straightforward menu allows control of numerous parameters, including input naming, tube hours, auto shutdown, and home theater passthrough. Phase invert and mono are also standard functions. At the heart of the LS28 are four 6H30 vacuum tubes in the analog circuit. While the LS28 is the perfect match for any Audio Research amplifier, it has been designed to work with nearly any amplifier on the market today.

MP100

2-Channel Solid State Phono Preamplifier Moving Coil & Moving Magnet inputs Analog outputs + USB for ripping to computer

MP1100

2-Channel Vacuum Tube Phono Preamplifier Fully balanced phono stage 5 equalization curves; 2 noise filters

PH9

New! Phono Preamplifier The PH9 phono preamplifier is a great pairing with most cartridge and turntable combinations. A trio of 6H30 vacuum tubes are at the core of a simple and clear signal path to provide the most transparent preamplification possible. Five different impedance settings allow for cartridge loading, which can be changed on the fly with the included metal remote. Cartridge impedance, tube hours, auto shutdown, and other features are included in the menu system.

REF 6

Stereo preamplifier Almost since the inception of the brand, Audio Research has produced some of the finest components for music reproduction; this is especially true with regard to preamplifiers. In 1973, the SP3 was hailed as the best preamplifier available, and this tradition of excellence has continued ever since. The Reference Series from Audio Research was first introduced in 1995 and has been the ultimate representation of performance, musicality and power. The Reference 6 is the latest chapter of our story.