Unison Research S6 Integrated Valve Amplifier

Unison Research S6 Integrated Valve Amplifier

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This is a new version of the popular integrated valve amplifier incorporating many design improvements and new styling to make the finished product better sounding and better looking.

Featuring Parallel Single Ended Ultra-Pure Class A output stage developing 30W per channel, the Unison Research S6 has the power to fill your room with detailed, transparent sound.

To enable best matching to speakers in the range 4 to 8 ohms impedance, the output transformer is a new design and has a fixed output impedance of 6 ohms.

The pre-amp power supply has been designed to give minimum hum by implementing multiple filters to reduce ripple. Five line level inputs provide ample connections for your stereo sources.



 Type Stereo Integrated Valve Amplifier 
 Output Stage  Single-Ended Parallel
Ultra-Linear A Class
 Output Power (per-channel) 30/35W
 Output Impedance  6Ω 
 Input Impedance  47kΩ / 50pF
 Frequency Response  20Hz - 50kHz
 Valves  6 x EL34
 Power Consumption  265VA max
 Inputs  5 x Line
 Outputs  1 x Tape
1 x Loudspeakers 
 Dimensions (Width x Height x Depth)  35 x 21 x 49 cm
Net Weight 25kg

Providing your item is in stock, the order is usually dispatched within 24 hours. Please remember that postage and packing is completely free for orders over £50*. Out of stock items will be dispatched as soon as they become available, out of stock items can take between 4 to 21 days for dispatch.

Deliveries usually take 1-3 working days. The majority of orders are sent via our couriers'; Interlink Express on a next-day-delivery service. Smaller, low value or light-weight items are normally posted using Royal Mail Recorded or Royal Mail Special Delivery.

Once your product has been dispatched, you will be notified via email and sent a unique consignment number, you can use this number at to check the status of your delivery. If you have provided a mobile telephone number, Interlink's Predict service will notify you by text (and email) of a one-hour delivery window. If the window they suggest is inconvenient, you can change the date of delivery to a later one via text or email.

*We ship free of charge to mainland UK addresses, excluding the Scottish Highlands or 'Out-Of-Reach' Scottish locations. Please consult the post-codes below to see if your location falls within this category. If you are still unsure, please contact us on 01432 354921. We also ship to Northern Ireland, Channel Islands, Scilly Isles, Scottish Isles and Scottish Highlands, however delivery to these locations will incur a charge and can only be sent via a 2-day service.

Shipping CostsMainland UK (Next-Day)Offshore/Out-of-reach (2-day)Northern Ireland, Channel Islands, Isle of Man, Scottish Islands, Scilly IslandsRepublic of Ireland (2-day)
Under £50 Orders £7.50 £12.50 £15.00
Over £50 Orders FREE £19.99 £29.99
Surcharge Orders £50.00 £69.99 £79.99
Saturday Delivery £12.99 N/A N/A
Sunday Delivery £12.99 N/A N/A
Saturday by 12 Delivery £35 N/A N/A


Post codes exempt from the free delivery service include:

Scottish Highlands Post Codes: AB30-38, AB41-42, AB44-56, FK17-99, G83, IV1-28, IV30-39, IV52-54, IV63, KW1-14, PA21-33, PA34-40, PH15-26, PH31-41, PH49-50
Islands Post Codes: HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA41-49, PA60-78, PH42-44, ZE1-3
Northern Ireland: All BT postcodes
Channel Islands Post Codes: JE, GY
Scilly Isles Post Codes: TR21, TR22, TR23, TR24, TR25

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