Technics Amplifier new class A . speaker binding posts modification.

more compatible with my stereo setup.Show more

new class A

new class A is an innovative bias circuit that keeps the output transistors in the ready state, eliminating crossover distortion, though keeping idling current low in order for more efficiency
- some models had computer drive which had an onboard microprocessor controling Icq of the output stage based on thermal and signal parametrics.

the sound of them?...
fantastic to say the least (well the amps from '78-91) - i should know by now - i have around 75 or so Technics amplifiers in my collection now (some models including SU-V2,V3,V4,V5,V6,V7,V8,V9,V1X,V2X,V4X,V6X,V8X,V40,V50,V60,V90D,V460,SE-A3MK2,SE-A5,SE-A7,SE-M100,SU-500,600,700,800,810,SU-G50,70,90,SU-Z22,Z400,Z600,Z780(SU-V78),SU-Z980(V98),SU-Z65 - a few recievers SA-TX50,SA-R430,R377 Hi Density SU-X90 SU-X101,X102

the best bits being clean sound, lots of current, wide dynamic range & loads of good bass - their bad point is they run quite warm and some models heatsinks leave a bit to be desired

http://www.geocities.com/technicshifi/Bias.html

the SU-V series is Technics Full width Integrated Amplifier series

not all were fully discreete and in fact some of the best sounding werent... (SU-V4X) - the SVI Hybrid ICs were infact excellent (now before the solid state buffs groan `bout the ICs - a few things bout them) Being a Hybrid IC they're infact discreete components on 1 substrate - much like the STK series BUT! better than the STK, the SVI features Complimentary Symmetry & all the resistors are ALL SMD rather than the film resistors in STK

http://www.geocities.com/technicshifi/SVI2004A.JPG a typical output stage design of Technics