The LS27 sounds very much like a REF5 on a slightly smaller scale, with an organic, lifelike musicality. Like its big brother, the LS27 combines great resolving power with a tonal richness, purity and naturalness that is immediately involving.
About this product
Fantastic condition trade-in Audio Research LS27 linestage preamplifier with silver faceplate and black body. Unit comes in original box and packing, with owner's manual, remote, and power cord.
Unit is rated 8/10 for minor cosmetic wear consistent with age and use.SPECIFICATIONS
Frequency Response: +0-3dB, 0.2Hz to 160kHz at rated output (Balanced, 200k ohms load)
Distortion: Less than .01% at 2V RMS BAL output
Noise & Hum: 1.3uV RMS residual IHF weighted balanced equivalent input noise with volume at 1 (100 dB below 2V RMS output).
Gain: Main Output : Selectable for each input: 24dB, 18dB, 12dB ; Record output: 0dB (Processor input: 0dB balanced)
Input Impedance: 120K ohms Balanced
Output Impedance: 700 ohms Balanced
Output Polarity: Non-inverting
Maximum Inputs: Low Gain: 48V RMS BAL; Medium Gain: 24V RMS BAL, High Gain: 12V RMS BAL
Rated Outputs: 2V RMS 1Hz to 100kHz into 200K ohm balanced load (maximum balanced output capability is 15V RMS at less than 0.5% THD at 1kHz)
Power Supplies: Electronically regulated low and high voltage supplies. Automatic 50 sec. warm-up/brown-out mute. Line regulation better than .01%.
Tube Complement: (2) 6H30 dual triode. (Hybrid JFET/tube audio circuit, solid-state power supply).
Power Requirements: 105-130VAC 60Hz (210-260VAC 50/60Hz) 50 watts maximum.
Dimensions: 19" (48 cm) W x 5.25" (13.4 cm) H (standard rack panel) x 13.3" (33.8 cm) D. Handles extend 1.50" (3.8 cm) forward of the front panel.
Weight: 16.3 lbs. (7.4 kg) Net; 23 lbs. (10.5 kg) ShippingAdditional Information
Please call 734.662.3595 and ask for Richard if you have any questions about this product. We make every effort to update our ads quickly when inventory fluctuates, but we encourage you to call and check product availability, as we are also a brick and mortar store.
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