Low gain 01A valve single ended stereo preamplifier with 816 mercury vapour valve rectified power supply.

Default Configuration

• 2 x 01A valves
• 816/6AX4 full wave bridge rectifer (2 x 816 and 2 x 6AX4 valves)
  
• Mercury vapour valves require careful handling; preheating of the condensed mercury prior to applying power to the anodes is required. For the 816 valve this is approximately 30 minutes after any transportation and then 20 seconds each time the amp is switched on thereafter
• High gloss finish available in any RAL Classic colour (see RAL Colour Charts)
• Solid hardwood 2/3 width format cases in high grade ash, beech, cherry, maple, oak, sapele or walnut
  
• Lundahl transformers
• Dual mono Intact Audio autotransformer volume controls
• ClarityCap TC polypropylene film capacitors
• Charcroft Z-Foil bias resistors
• Point to point UP-OCC 99.999% copper wired
• Black anode caps, black knurled solid aluminium knobs
• 4 x RCA Inputs (active wired, see note below)
• 1 x RCA Output
  
• UK 240V (any international mains voltage options available)
• Lifetime warranty to first owner

Custom Options

The design has been optimised to showcase the very best of the 01A however the platform will accommodate components from other manufacturers, including transformers, capacitors, resistors etc. Let us know what you have in mind.

Inputs can be wired passively, i.e. direct to the volume transformers, not requiring power and useful if you don't require any extra gain.

Technical Specification

• Gain: 5dB
• Input impedance: 100k ohms
  
• Frequency Response 20Hz - 25KHz (+/- 1dB)
• Cathode biased
• Zero negative feedback
• Each unit measures 28cm wide by 32 cm deep. The power supply is 27cm high and weighs 14kg, the amplifier is 25cm high and weighs 13kg

Built To Order

• Build time is currently 6-8 weeks from the date of your order to shipping