Audio Research VS115 Stereo Valve Amplifier

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Power output 120 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.5% at 120 watts, below .05% at 1 watt.
Power bandwidth  
Frequency response (-3dB points at 1 watt) 0.8Hz to 100kHz
Input sensitivity 1.6V RMS Single-ended or Balanced for rated output. (26dB gain into 8 ohms).
Input impedance 150K ohms Single-ended, 300K Balanced
Output taps 8 ohms, 4 ohms
Output regulation Approximately 1.2dB 8 ohm load to open circuit.
Overall negative feedback  
Damping factor Approximately 8
Slew rate  
Rise time  
Hum & noise Less that 0.2mV RMS 104dB below rated output (IHF weighted, input shorted).
Power supply energy storage Approximately 332 joules.
Power requirements 105-125VAC 60Hz (210-250VAC 50Hz) 690 watts at rated output, 900 watts maximum, 400 watts at "idle".
Tube complement (4) 6H30, (4 matched pairs) 6550C

Output polarity: Non-inverting. SE or BAL PIN 2+ (IEC268)

Dimensions 17.5" (44.5 cm) W x 7.9" (20.1 cm) H x 19"(48.3 cm) D. Rear connectors extend .88" beyond chassis.
Weight 62 lbs. (28.2 kg) Net; 70 lbs. (31.8 kg) Shipping.


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

The VS115 revisits the classic look of the VS110 with its open architecture and natural anodized top plate – now more ventilated for better heat dissipation. Drawing upon the successful REF110 input stage design, the VS115 uses a FET input with two 6H30 triodes in each channel for gain and as a cathode follower-driver for the 6550C-equipped output stage. This allows both balanced and single-ended connections in a true differential topology yielding a much wider power bandwidth (110kHz in contrast to 40kHz for the VS110). There is a new power transformer, and power output from the four matched pair of 6650C output tubes is 120WPC, providing excellent drive and control. Bias test points for each output tube are located on the rear panel, along with a 12V trigger which allows remote turn-on. A heavy 20-amp IEC detachable cord conducts the A.C. supply. While the VS115 physically resembles the discontinued VS110, sonically it is in another league. The VS115 immediately makes clear its wider power bandwidth with more speed, top-end air, improved resolution and more articulate, impactful bass. Textures and timbres are finely rendered and silky-smooth, with the grainless resolution of which only our Reference series amps have previously been capable. In short, the new VS115 is highly engaging, musically rewarding and an unparalleled performer at its price. For the music lover who wants the best attributes of tubes in both style and performance, the VS115 is a new amplifier that will be impossible to resist.

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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