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Audio Research LP1 Stereo Valve Preamplifier

code: AUDIORESLP1
£2,200.00 (FREE UK Delivery)
Item out of Stock  |  Usually dispatched within 24 hours
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This item cannot be ordered online. If you are interested please click on the Ask a Question button below.

FREQUENCY RESPONSE: ± 0.3dB of RIAA, 10Hz to 20kHz.

DISTORTION: Less than .019% at .5V RMS SE output.

GAIN: 47dB at 1kHz.

SWITCHES:  Power, Mute.

INPUT IMPEDANCE: 47k ohms (0.7 to 7mV high output cartridge recommended).

OUTPUT IMPEDANCE: 5.5k ohms Single Ended (Single Ended RCA connectors).  60k ohms minimum load and 100pf maximum capacitance.

OUTPUT POLARITY: Non-Inverting.

MAXIMUM INPUTS: 40mV RMS 1kHz, 100mV RMS 10kHz.

RATED OUTPUTS: .0.5V RMS Single ended into 100k load (maximum output 15V RMS at 1% THD at 1kHz).

POWER SUPPLIES: Electronically-regulated low and high voltage supplies. Automatic 40 sec. warm-up/brown-out mute.  Line regulation better than .01%.

NOISE: 0.4µV RMS IHF weighted equivalent input noise, shorted input 74dB velow 2mV RMS 1kHz input).

TUBE COMPLEMENT: (1) 6H30 dual triode.

POWER REQUIREMENTS: 100-135 VAC 60Hz (200 - 270VAC 50/60Hz) 35 watts maximum.  

DIMENSIONS: 11.3" (33 cm) W x 4.5" (11.4 cm) H x 8.6" (21.8 cm) D. Rear chassis fittings extend 0.6" (1.5 cm).

WEIGHT: 9 lbs

This item cannot be ordered online. If you are interested please click on the Ask a Question button below.

The LP1 is a departure for us in both size and series designation. The chassis is a compact 13” wide, by 8.6” deep, by 4.5” high. The front panel has the inset Audio Research logo with an engraved line completing the panel, but no handles.  There are simply two switches for Power/Off and Mute/Operate. The entire chassis is silver, and the front panel is only available in Natural.  The LP1 has 47dB of gain, perfect for higher output (>1.0mV) MM and MC cartridges. It is a hybrid design utilizing one 6H30 tube, special low noise JFETs, custom Audio Research designed power transformer (made in the U.S.), and multiple stages of regulation.

There is no overall feedback, and it is noninverting.  Inputs and outputs are single-ended. The LP1 simply sounds wonderful, with great transparency and a lovely tonal balance.  Typically Audio Research, the LP1 has dynamic life, passing gobs of information and sorting out the most complex musical passage. Airy on top, resolute on the bottom, the LP1 is fun to listen to and distances itself from the competition. Put it in any system at hand and have a great time with your favorite vinyl.

We endeavour to despatch same day (for orders placed up to 2pm) on available stock items to the vast majority of UK mainland addresses. Please remember to check with us first for a physical stock check if next day delivery is important to you.

UK ORDERS:  We despatch the bulk of our UK mainland items on a 24 hour service – Free of Charge.  Free delivery also applies to the Isle of Man, Isle of Wight, the Scilly Isles, the Scottish highlands and Islands, the Channel Islands and Northern Ireland but may take a day or so longer. Smaller items are delivered using Royal Mail recorded delivery or special delivery. Larger items are delivered using a courier service such as Interlink Express, DPD, UPS or DHL. 

INTERNATIONAL ORDERS: We offer competitive rates which can be confirmed by email. Please just ask – we will need a full delivery address and telephone number. Smaller items are delivered using Royal Mail Small Packets Airmail with International Tracked and/or Signed depending on value of item and availability of the service. Larger International shipments are sent by insured and tracked services using DPD, DHL or UPS. If there are any delays due to specific customs regulations, etc, you will be contacted by Hifisound or by the courier with a request for any further information required. Customs duties do not apply for shipments into any EU country (for a full list please refer to the EU Country List). Customs duties can apply for countries outside of the EU. Customers in these countries are responsible for all taxes and duties incurred when the items enter their country.

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