Audio Research PH6 Stereo Valve Phono Preamplifier

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FREQUENCY RESPONSE            + / -0.2 dB of RIAA 10Hz - 60kHz 3dB points below 0.5 Hz and above 400kHz
DISTORTION                                  Less than 0.005% to 0.50 V RMS 1kHz output
GAIN                                               58dB at 1kHz (MC and MM compatible)
BUTTONS                                       Power, Mute, Mono, Load

POLARITY 'OUTPUT                      Non-Inverting
MAX INPUT                                     70mV RMS at 1kHz (180mV RMS at 10kHz)

NOISE                                             0.15 uV equivalent input noise, 

POWER DEMAND                         200-270Vac 50/60Hz, 50 watts max
Line fuse                                        1A 230V Fast
DIMENSIONS                                47 cm x 13.2 cm x 25.4 cm (WxHxD)
WEIGHT                                         Net 5.1 kg  Gross 8.6 Kg

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

The choices of the load are 47K, 1000, 500, 200 or 100 ohms. All functions are duplicated on the remote control. The rear panel includes a pair of single-ended inputs, a ground, and a 15A IEC connector. The PH6 is a hybrid (like PH5), with high-gain JFET input constant current and stadiuo stabilization without any counter-reaction. The PH6 uses four 6H30 twin triodes. Instead of replacing the valves towards the 2,000 hours, now you can expect more than 4,000. The bandwidth is <0.5Hz to 400kHz and the total gain is increased (from 0.5) to 58dB, the RIAA stage is slightly better, and in general the noise is even lower. The power transformer R-core is new and made in the U.S.

You can not upgrade to a PH5 PH6. In terms of sound, the PH6 is a much higher league. His improvements are immediate and obvious, the more resolution on high-end, improved micro and macro dynamics, soundstage and better focusing of the bigger picture with three-dimensional stage, and the air around the instruments simply wonderful. The real surprise is how relaxed and pure sound of the refund PH6 that allows you to get lost in the music, this is what makes the best analog in a magical way.  The CD6 offers disc playback via the Philips Pro2 transport (still considered the industry standard), plus four digital inputs (asynchronous USB, coaxial RCA and two toslink). All inputs handle 24 bit / 192k resolution.

Benefitting from what Audio Research has learned in the development of the REF DAC and CD9, the CD6 utilizes quad 24-bit DACs running in mono mode, with dual master oscillators for highest performance; one for 44.1/88.2/176.4 sample rates, the other for 48/96/192kHz sample rates. Sample rate conversion is selectable for all inputs, allowing playback in native resolution or via upsampling, including compact disc and USB. Additionally, there is a selectable digital filter offering fast or slow rolloff. In addition to the digital inputs, the back panel includes two digital outputs (AES/EBU and BNC), and single-ended RCA and balanced XLR outputs. Sonically, the CD6 is a stunner, uncovering new musical detail in every corner of your recordings and providing startling dynamics, both micro and macro. The top end is extended, airy and pure, while bass definition and impact are precise and powerful. The recording venues are lifelike, broad and expansive or close-up and intimate, depending on what was captured by the engineer. Like great analog, listening to music through the CD6 draws you into the performance, not just the notes, with resolution and transparency that are in service of the music. 

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.  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 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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