Audio Research REF Phono 2SE Stereo Valve Preamplifier

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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: ± .2dB of RIAA, 10Hz to 60kHz; 3dB points below 0.3Hz and above 300kHz.

DISTORTION: Less than .002% at 1.0V RMS 1kHz output.

GAIN: Selectable 51dB (Low), 74dB (High) at1kHz BAL; 45dB (Low), 68dB (High) at1kHz SE.  (MC & MM compatible).

BUTTONS: Front (6) Power, Input, Gain, Load, RIAA, Mute. Remote adds ‘Hours’ and ‘Display’.

INPUT IMPEDANCE: 47K ohms and 100pF SE. Selectable loads:  1000, 500, 200, 100, 50 ohms and Custom.

WEIGHT: 27 lbs. (12.3 kg) Net; 38 lbs. (17.3 kg) Shipping.

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

The Audio Research Reference Phono 2 SE offers an extensive feature set. There are two separate sets of inputs, with selectable gain between Low (51dB BAL / 45dB SE) and High (74dB BAL / 68dB SE). There are seven loading selections including 47K, 1000, 500, 200, 100, 50 ohms, and Custom, which we can factory-set according to your need. In addition to standard RIAA phono equalization, the Reference Phono 2 SE also includes early stereo Columbia and Decca equalization curves. The display shows all selected functions (Input, Gain, Loading, EQ, Mute, Tube Hours) and the microprocessor remembers settings for each input.


The Audio Research Reference Phono 2 SE is a fully balanced design with an input circuit that allows its RCA inputs to operate in a balanced configuration without requiring an inverter. The tube complement is similar to that of other Reference components, with four 6H30s in the gain stagewith a 6550C and 6H30 in the power supply. The Reference Phono 2 also features the same basic analog stage as its acclaimed siblings. Rather thanusing a step-up transformer, special high-gain, extremely low-noise FETs are used in the high- gain section. 

This approach is costlier than using a transformer, but it is well worth the dramatic performance increase. There are new, proprietary capacitors throughout, increased power supply capacitance, and eleven stages of power supply regulation. The Audio Research Reference Phono 2 SE makes incredible music.The black background is stunning, allowing depth and texture to emerge from your recordings unlike you have ever previously experienced.

We endeavour to despatch same day for orders placed up to 2pm on available stock items (items with stock message "Usually dispatched within 24 hours"). Please remember to check with us first for a physical stock check if next day delivery is important to you. Any items with stock message "Usually dispatched within 72 hours" are items that we do not hold in stock but order in from the importer or manufacturer as soon as a customer order is recieved. Occasionally these may be delayed beyond 72 hours due to importer/manufacturer stock levels but we will inform you as soon as we can if this is the case.

UK ORDERS:  We despatch the bulk of our UK mainland items on a 24 hour service – Free of Charge.  Non Mainland locations - Isle of Man, Isle of Wight, the Scilly Isles, the Scottish highlands and Islands, the Channel Islands and Northern Ireland may take a day or so longer and are not Free of Charge. 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 Turntableworld 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.

COLLECT IN STORE OR HOME INSTALL:At the request of the manufacturer some items cannot be supplied by mail order but you can click and buy them and then elect to collect them from our store or arrange a home install (if applicable). Applicable items clearly state that they are Collect in store or home install. Once ordered you will receive a message prompting you to contact us by phone or email to arrange for us to deliver and install or to reserve and collect from our store at your convenience, you will also be advised of the delivery time / stock availability as not all Home install / collect in store items are held in stock. 

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