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The Red T and Red K Signature are very similar in construction.
Electrically, the Signature offers a more closely matched core and coil set.
Cosmetically, the Standard is distinguished by a sloped base when viewed lengthwise while the Rosewood Signature is rectangular-shaped like the other Koetsu cartridges.
... [more]
| Moving coil cartridge |  |
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The Rosewood Standard and Signature are very similar in construction.
Electrically, the Signature offers a more closely matched core and coil set.
Cosmetically, the Standard is distinguished by a sloped base when viewed lengthwise while the Rosewood Signature is rectangular-shaped like the other Koetsu cartridges.
The Rosewood Standard/Signature is also so... [more]
| Moving coil cartridge | |
 | The left side of the front panel contains a 7” (diagonal) interactive touch-screen display that allows the user to easily control almost all functions. After the initial turn-on sequence, the Volume, Input, Balanced/SE, Stereo/Mono, Phase 0/180, Balance (leftright) control, Mute/Operate, and Settings icon are clearly displayed. Touch the input displayed (such as Tuner), and all of the inputs... [more]
| Stereo valve preamplifier |  |
 | | Stereo valve amplifier | |
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New Architecture
At the heart of the Reference 20 is an entirely new platform engineered to eliminate sources of distortion previously accepted as unavoidable.
The traditional stamped chassis has been replaced with a sophisticated multi-metal, layered construction designed to disperse and control resonant energy. Critical circuits are mounted on cust... [more]
| Stereo solid state preamplifier | |
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From its ECC83 input to its KT170 output, with tube regulation in the power supply, the 330M proves that you can enjoy the ease of high power along with a delicacy and purity usually associated with low-power amplifiers. Tonal saturation and density accompany a specificity of recording space beyond anything we have built.
Liquidity and artistry abound, ye... [more]
| Mono valve amplifier | |
 | | Stereo valve preamplifier | |
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Central to the Reference 7 is the same mechanical architecture that defines the Reference 20.
A multi-metal, layered chassis manages resonance through controlled energy distribution, while custom suspended, mass-loaded circuit boards protect the integrity of the signal path. These are core elements of the design, carried forward to preserve the transparency achieve... [more]
| Stereo solid state preamplifier | |
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REFERENCE 75 SE
VACUUM TUBE STEREO POWER AMPLIFIER, 75 WATTS
The Reference 75 SE is a stunning amplifier in every way – performance, styling and reliability combined to elevate your music listening to a new experience. Capable of controlling a wide variety of speakers, the Reference 75 SE will transport you into the musical performance unlike any other comparable amplifier. A... [more]
| Stereo valve amplifier | |
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The Reference 80S stereo amplifier continues Audio Research’s latest design effort in creating a vacuum-tube amplifier that not only redefines ultimate music reproduction, but does it in an incredibly beautiful package.
Outwardly, the 80S shares the same dimensions as the 160M. A single shallow whisper fan is built into the bottom plate. Flexibility is built-in, too, with XLR an... [more]
| Stereo solid state amplifier | |
