Exceptional performance at a modest price! The Stereo 40 MKI was our first model in 2001 and has always been a special product to us. Since that time we have substantially improved it over the years. In its latest guise, the MK IV has several upgrades making it exceptional value. Headphone Socket.Exceptional quality is provided by using separate HQ windings of the output transformer. Not attenuation is used to give a very open sound. Suitable for 8 to 500 Ohms. Giving greater flexibility of use. Improved Power Supply.In conjunction with our re-designed output transformers, the Ultralinear Power is now over 50 Watts. This gives greater instantaneous power available for heavy transients, and a more solid bass. More Triode Power.We know that majority of customers use the Triode Facility most of the time. The Triode power is now 30 Watts enabling use of all but the most inefficient speakers. Re designed driver circuit.Using a “cascode” configuration for the first stage enables us to use the venerable 6SN7 valve for all the driver circuit functions. This gives better definition whilst improving the frequency response at lower volumes. This also simplifies valve replacement as the amplifier only uses two valve types. The Stereo 40 MK IV is packed with high end features: Choke Regulated Power SupplyWorking in conjunction with the smoothing capacitors the large choke gives super-smooth power regulation for a silent background.Tertiary Transformers have an extra (third) winding which reduces distortion, using less global feedback. We believe our large handmade output transformers to be amongst the finest available. They are more expensive and difficult to make, but worth the effort.Low Feedback Too much feedback can spoil the sound of an amplifier. We only use a small amount in the Stereo 40 MK IV.GEC KT88 and U.S. 6550 valvesConsidered by many to be the finest Beam Pentode valve ever created, efficient, easy to drive with low distortion the Stereo 40 MK IV is designed to get the best out of this valve in big dynamics and micro detail. The American 6550 is a similar alternative. Ultralinear or Triode?For sixty years hi fi fans have argued which sound is better. With the Stereo 40 IV you have the choice of both at the flick of a switch. It is like having two amplifiers in one! Most hi fi fans prefer the sound of triode operation.6SN7 (CV181)This vintage 1941 forerunner of the miniature ECC series has a more “vivid” sound and balances well with the modern KT88. Our CV181 version comes as standard.Remote ControlUseful to get exactly the right volume in your listening chair position. Allows fine adjustment of the right sound level.Plenty of Power50 watts of power is enough to fill a medium to large room with a high volume of musical excellence. Specifications and Features· All hand wired point to point, no printed circuit board· Class A, all Triode front end· Output circuit Ultralinear or Triode switchable· 4x KT88 matched for best performance (EL 34 compatible)· 4x 6SN7/CV181 first stage valve and phase splitter· Standby switch to save valve life and power · 2x 50w per channel Ultralinear output continuous· 2x 30 Watts in Triode mode continuous· Remote control with high quality ALPS motorised pot· Signal to noise level -90db· Freq response better than 20hz-20kHz +0 – 1db· Power bandwidth 30Hz-30kHz -3 dB· Total harmonic distortion 0.2% at full output· Suitable for 4, 8, and 16ohm loudspeakers· Supplied with valve cover.· Choke regulated power supply· SCR audio caps,· Silver plated copper PTFE audio cable · Custom hand wound Tertiary output transformers· Audiophile Gold plated Input & speaker terminals · Four line inputs: CD, Tuner, Aux plus Tape· Tape monitor circuit with ‘Record Out’· Input sensitivity 250mv.(high). 800mv (low).· Comprehensive manual supplied· Power requirement 230-240volts (117v adjustable)· 76 Watts standby, 140 W Min, 240 W max. · 39cmW, 41D, 23H, 23kg (allow for ventilation)12 months parts and labour warranty on amplifier, valves 12 month pro-rata warranty(Specifications subject to change) *(Root Mean Square = continuous output) (*while stocks last. specifications subject to change E&EO) Item may be auditioned and collected from our Leicester office. Questions are welcome.Please note:Buyer pays for returns and original shipping charge.Subject to a 10% charge for re-packing and testing.Buyers with low or negative feedback may be declined. UK sales only.

Pre-owned. Icon Audio MFV3 standard loudspeakers made for valves amps 10w to 150w in real cherry wood veneer Very good overall condition with only a couple of minor blemishes to cabinet exterior. Full working order and sound is excellent. Dims 109H x 21H x 35D (cm) and 27kg each Appro Bronze floor spikes also supplied. Capable of filling a large room with a beautiful golden sound from 15watts. Can be seen working. Original packaging supplied. Collection from Staffordshire or possible delivery depending on location/cost. Check for details.