Audio Research LS22 Tube Stereo Preamplifier w/ Phono - Excellent Condition
Vendor:
Audio Research
- $1,850.00
- $1,850.00
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$1,850.00
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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:
Enjoy free shipping on orders over $99 within the continental US. For orders under $99, a $4.95 flat rate applies. Orders are processed promptly, with most orders placed by 1pm EST shipped the same day. We ship only within the continental US and cannot change shipping addresses post-purchase.
30-Day Hassle-Free Returns:
At Audio Exchange, your satisfaction is our priority. If you're not completely satisfied with your purchase, you can return most items within 30 days for a full refund. Returns must be in ‘like new’ condition. Initiate your return on our website and send items back to: 6007 W Broad St, Richmond, VA 23220.
Exceptions: Open box headphones, cartridges, and stylus’ are subject to a 15% restocking fee. Opened in-ear headphones and turntables cartridges or stylus’ with a broken needle are non-returnable.
Questions? Email us at audioexchangervb@gmail.com.
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