In Stock
£690.00 Save: £109.00 £799.00

0% Interest For 4 Months On Orders Of £99 Or More

A 0% interest offer you can use again and again: PayPal Credit's 0% interest offer is better than just an introductory offer. Every time you spend £99 or more, you will automatically get 0% interest for 4 months on that purchase.

Simply select the PayPal Credit option when you check out to take advantage of these offers.

Mansons Guitar Shop Limited, McCoys Arcade, Fore Street, Exeter, Devon, EX4 3AN. Mansons Guitar Shop Limited acts as a broker and offers credit from PayPal (Europe) S.à.r.l. et Cie, S.C.A., 22-24 Boulevard Royal L-2449, Luxembourg.

All applicants for PayPal Credit must meet the following criteria before attempting an application. Before you apply, please make sure you:

  • Are a UK resident aged 18 years or older
  • Have a good credit history
  • Are not currently declared bankrupt
  • Have an income greater than £7,500 per year

Cost of PayPal Credit outside of promotional offers:

Representative 19.9% APR (Variable)
Purchase rate 19.9% p.a (variable)
£1200 assumed credit limit.


Please note that above are estimations only. Please check the finance agreement for final payment information.

To apply for finance, you must be 18 years or older, in regular employment, be able to make regular payments by Direct Debit and have been a UK resident for over 3 years. Other conditions may apply and we cannot guarantee that your application will be accepted.

Your order will de delivered to the home address in the finance agreement, regardless of the delivery address selected in the checkout.

If you are successful in your application, you shall be asked to verify your identity by authorising a 50p transaction against your credit or debit card. This helps to protect against fraudulent contracts. Don’t worry - no money will be taken from your card this is only used to check they are valid and registered to your address.

Finance is provided through our partner, V12. If your application is successful you'll enter into a credit agreement with Secure Trust Bank Plc trading as V12 Finance.

Box Ltd is registered in England and Wales 3224094. Registered office: First Avenue, Minworth, Sutton Coldfield, West Midlands, B76 1BA. Box Limited acts as a credit broker and offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. Box Limited is authorised and regulated by the Financial Conduct Authority. Our registration number is OFT 626739. Credit provided subject to age and status.

From £179.90 per month
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0% APR Available
  • Free UK mainland delivery
    Free UK mainland delivery
    on all orders £150 and above
  • All guitars are setup
    All Guitars are setup
    by our top luthiers
  • Real time stock levels
    Real time stock levels
    order in confidence

Stone Deaf SD8, 8 Watt Valve Head

Stone Deaf first burst onto the scene with their brilliant pedal the PDF-1. Now the British manufacturer has turned their attention to amplifiers, with the SD8, an all valve 8 Watt head that you can control digitally! Here is what Stone Deaf have to say: 

The SD8 is an all analogue single class A guitar amplifier that incorporates a digital control system to enable the user to store and recall a wide variety of tonal pallets at the touch of a button across 64 channels / presets. The pre-set bank enables you to store any combination of settings such as EQ, Volume and Gain on 4 banks with up to 64 user-stored presets / channels available (Yes you read that correct 64 channels of your own valve tones!) The SD8 is handcrafted in Huddersfield, West Yorkshire, United Kingdom in our small family run factory unit.

Everything is sourced as locally as possible, the transformers are wound 1.5 miles up the road, the chassis's are manufactured their too, the front anodised panel is manufactured 200 metres down the road, the amplifier head boxes are made in the UK from premium Italian or French Poplar for a 30% weight reduction on the wood cabinetry, the Tolex is supplied from the UK and US, the piping is from the UK. We use Wima Caps, Schaffner power IEC inlets, high-quality tantalum capacitors and resistors. We do all electrical and final assembly in house and only outsource to trusted experts in their field. This is a quality manufactured boutique product proudly manufactured in the UK. Each amplifier comes with 5 years warranty to the original purchaser and life time support.

The SD8 is game changing valve amp and bridges the gap between valve amplifiers and digital amplifiers and it has the ability to create a vast tonal palette that's easy and intuitive to dial in from its familiar interface. Perfect for recording and home use because of its size and portability.

  • Pure Class A Single Ended ( Beautiful sounding pre-amp for blues, hard rock and clean tones)

  • 8 Watts RMS (Perfect volume for recording and home use)

  • Light weight Italian or French Poplar plywood cabinets 

  • All analogue valve amplifier circuit with digital control of tone, volume and gain via a push of a button

  • 16 x 4 banks of presets equalling a total of 64 presets / valve channels

  • MIDI Input (allows control of all settings via any MIDI device using standard MIDI protocol's including, Keyboard, DAW, Wireless MIDI, Footswitches. A comprehensive list is available in the manual.)

  • Balanced DI (allows direct recording using a 1/4 inch jack output)

  • 240 /120v Switchable (perfect for travel due to its ability to switch voltages from US, EU to UK etc etc)

Specification Details
Amp Technology Valve
Amp Preamp Valves 3 x ECC83S
Amp Weight 7kg
Amp Power Output 8 Watts
Amp Power Valves 1 x EL84
Amp Controls Gain, Volume, Bass, Middle, Treble