Reference Power

  • Pair of power amplifiers representing Unison Research's Reference range
  • Double parallel single-ended output stage
  • Intuitive attention to detail

This is a Special Order item.

Due to circumstances relating to this product, it is only available in the UK to special order, which means it is not stocked as standard in our warehouse. A special order item will be placed on order with the relevant manufacturer during our next scheduled Purchase Order. As we forecast orders up to two months ahead of time with some suppliers, this does not mean the item will automatically be included on the next shipment we receive. It also does not mean that the item will immediately be placed on order with the supplier, as we group special orders together for logistical purposes. Therefore, we estimate lead times on most special order items of 8 – 12 weeks.

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How To Buy

As UK distributors for the brands we represent, our main focus is to give you all the information you need to help assist with your purchase. Once you have the information you need, we want to make the purchase process as simple as possible. So we give you up-to three options on how to buy our products.

Find Your Local Retailer

Our preferred option is for you to visit a nearby store and buy what you need locally. Our authorised stockists are some of the finest specialist hi-fi retailers in the country, and they're equipped to give you the best after-sales and set-up advice possible - all in person. To find your local retailer, either click the 'Buy In-Store' button on your product page for exactly the right recommendation, or head to our comprehensive Where To Buy tool.

Buy Now, Collect Locally

If you want the added convenience of only having to pop-in to store when you know the product you want has arrived, you can use our Click & Collect-style checkout process. With Buy Now, Collect Locally, your purchase takes place online and the product is then delivered direct to your local supporting retailer; ready for you to collect when you're ready. Click here to find out more about Buy Now, Collect Locally.

Buy Now

For smaller items, you can also have the ultimate convenience of purchasing directly through our website. The checkout process is entirely secure, so you can trust your information will be safe - and your desired product will arrive with you as quickly as possible.

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Power Amplifier

Unison Research noticed there was a high demand from customers requesting a tube amplifier capable of output power that exceeded their earlier models. As a response, the design team at Unison Research crafted the Reference Power mono-block amplifiers. This amplifier is the culmination of Unison Research's years of experience of crafting high-calibre valve designs.  


Technical Data

Type: Mono Valve Amplifier
Output Stage: Double parallel single-ended
Class: A pure
Valves: 4 x 845, 1 x ECC82, 1 x ECC83
Output Power 100W 
Frequency Response: 20 Hz - 30kHz
Feedback factor 14 dB
Output Impedance: 4Ω e 8Ω
Outputs: loudspeakers bi-wiring
Inputs: 1 x RCA, 1 x XLR
Input Impedance: 47kΩ RCA, 10kΩ XLR
Power Consumption: 400 VA approx.
Dimensions: 19.3 x 30.5 x 11.2 mm
Net Weight: 155 lbs
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