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Description
Audio Research LS22 Tube Stereo Preamplifier w/ Phono - Excellent ConditionThis Audio Research LS22 stereo preamplifier is in excellent physical and working condition. All functions have been tested by a professional repair technician. The phono input is line level and will need a phono preamp. The manual is downloadable at the Audio Research website. About the Audio Research LS22 Stereo Preamp The Audio Research LS22 Stereo Preamp is a high performance, vacuum tube preamplifier renowned for its sonic excellence and
This Audio Research LS22 stereo preamplifier is in excellent physical and working condition. All functions have been tested by a professional repair technician. The phono input is line level and will need a phono preamp. The manual is downloadable at the Audio Research website.
About the Audio Research LS22 Stereo Preamp
The Audio Research LS22 Stereo Preamp is a high-performance, vacuum tube preamplifier renowned for its sonic excellence and engineering precision. Designed to deliver an unparalleled listening experience, the LS22 features a meticulously crafted audio circuit and a robust solid-state power supply. With its impressive frequency response and minimal distortion, this preamp ensures crystal-clear sound reproduction across a wide range of audio sources. Ideal for audiophiles seeking superior sound quality, the LS22 embodies the legacy of Audio Research's commitment to innovation and audio fidelity.
Technical Specifications
| Specification | Details |
|---|---|
| Frequency Response | ±.5dB, 1.5Hz to 100kHz. -3dB points below 0.1Hz and above 400kHz. |
| Distortion | Less than .010% at 2V RMS output. |
| Noise & Hum | 12µV RMS IHF weighted balanced noise (104dB below 2V RMS output) |
| Gain | Main output: 18.3dB Bal., 12.7dB Unbal. Tape output: 0dB. |
| Input Impedance | 200K ohms balanced, 100K ohms unbalanced |
| Output Impedance | 400 ohms balanced, 200 ohms unbalanced main (2), 20K ohms minimum load and 2000pF maximum capacitance. |
| Output Polarity | Inverted |
| Maximum Inputs | 20V maximum |
| Rated Outputs | 2V RMS 1Hz to 100kHz into 100 Ohm balanced (maximum balanced output capability is 35V RMS at less than 0.5% THD at 1kHz) |
| Power Supplies | Electronically-regulated low and high voltage supplies. Automatic 45 sec. warm-up/brown-out mute. Line regulation better than .01%. |
| Tube Complement | (8) 6922/E88CC |
| Power Requirements | 100-135VAC 60Hz (200-270VAC 50/60Hz) 90 watts maximum. |
| Other | Vacuum tube audio circuit, solid-state power supply. |
| Inputs | (6): tuner, video, phono, CD, aux tape (XLR and RCA connectors). |
| Outputs | (3): 2 main, 1 tape (XLR and RCA connectors). |
| Dimensions | 19" (48 cm) W x 5¼" (13.4 cm) H (standard rack panel) x 11¾" (29.8 cm) D. Handles extend 1½" (3.8 cm) forward of the front panel. Rear chassis fittings extend ⅞" (2.3 cm). |
| Weight | 17 lbs. (7.7 kg) |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy