Description: Audio Research LS-22 Line Stage Amplifier audiophile Tube Pre Amplifier I'm selling many of my items due to moving oversea. I will ship some of them to my new home, of course. You are looking at the Audio Research LS-22 Line Stage Amplifier audiophile Tube Pre Amplifier. It is in great working condition. I have it in my collection for over 2 years. There are some scratches, dings, and one of the screw head is ripped. Description of Controls GAIN CONTROL: Use it to control volume. Rotation to the left attenuates gain, rotation to the right increases gain. INPUT SELECTOR: Detents indicate selection of various source material options: "Tuner" for AM/FM radio tuners; "Video" for audio input from HiFi videotapes, discs or broadcasts; "Phono" for phono preamplifiers: "CD" for compact disc players or digital-to-analog processors; "Aux" for any additional high level source - tape, tuner, CD, video, etc. The signal source chosen by the input selector is fed to the Tape outputs. NOTE: See "Monitor/Source" for primary tape recorder selection. POWER SWITCH: Supplies power from AC wall outlet to LS22 when in "Power" position. Although not strictly necessary, it is nonetheless good practice to put the LS22 in "Mute" before turning on power for maximum protection of your power amplifier(s) and speakers. Specifications Model LS22 FREQUENCY RESPONSE: .5dB, 1.5Hz to 100kHz -3B points below 0.1Hz and above 400kHz. DISTORTION: Less than .010% at 2V RMS output. GAIN: Main output: 18.3dB Bal., 12.7dB Unbal. GAIN: Main output: 18.3dB Bal., 12.7dB Unbal. Tape output: OdB. INPUT IMPEDANCE: 200K ohms Balanced, 100K ohms Unbalanced, Inputs (6): tuner, video, phono, CD, aux, tape (XLR and RCA connectors). OUTPUT IMPEDANCE: 400 ohms Balanced, 200 ohms Unbalanced main (2), 20K ohms minimum load and 2000F maximum capacitance. Outputs (3): 2 main, 1 tape (XLR and RCA connectors). MAXIMUM INPUT: 20V maximum. RATED OUTPUTS: 2V RMS 1Hz to 100kHz into 100K ohm balanced load (maximum balanced output capability is 35V RMS at less than 0.5% THD at 1kHz) CONTROLS: Gain, Input selector. Toggle switches: Power/Off, Unbalanced/Balanced input, Monitor/ Source, Mute/Operate. POWER SUPPLIES: Electronically-regulated low and high voltage supplies. Automatic 45 sec. warm-up/brown-out mute. Line regulation better than .01%. NOISE: 12uV RMS residual IHF weighted balanced noise output with gain control minimum, (104dB below 2V RMS output). TUBE COMPLEMENT: 8-6922/E88cc dual triode. (Vacuum tube audio circuit, solid-state power supply) POWER REQUIREMENTS: 100-135VAC 60Hz (200- 270VAC 50/60Hz) 90 watts maximum DIMENSIONS: 19" (48 cm) W x 514" (13.4 cm) H (standard rack panel) x 11/4" (29.8 cm) D. Handles extend 1½/2" (3.8 cm) forward of the front panel. Rear chassis fittings extend ⅞8" (2.3 cm). WEIGHT: 17 Ibs. (7.7 kg) Net; 27 lbs. SHIPPING: An item will be carefully packed. Shipping Within US 48 Continental States Only ( not shipping to HAWAII , ALASKA , PUERTO RICO , VIRGIN ISLAND , PO BOX OR APO ADDRESS) will be shipped by FedEx home delivery.
Price: 1750 USD
Location: North Hollywood, California
End Time: 2024-10-02T21:10:43.000Z
Shipping Cost: N/A USD
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Item Specifics
All returns accepted: ReturnsNotAccepted
Brand: Audio Research
Type: PREAMPLIFIER
Model: LS 22
