Using 1% resistors in an amp as apposed to various tolerance resistors

[Sideband]

Absolutely...David couldn't have put it better! There is a whole 'pseudo-science' out there on audio with people trying to convince others about the advantages of cryogenically treaded valves and cables, wooden cased capacitors (yes) and other total twaddle....and making huge sums of money from the gullible......but lets keep this for the proper thread!

[McMurdo]

I'm pretty certain that the resistors used in recording studio desks aren't polarised. Nor are the Maplin phono cables that sometimes get used when they run out of professional patch cords. Someone's pulling your plonker.

[Luxman1050]

Bit like asking someone to hand you a left-handed screwdriver. I wonder how many people have read that article bought resistors and start looking for the +/- markings!!!!!

Chris

[Smithdoor]

Originally Posted by Luxman1050

Bit like asking someone to hand you a left-handed screwdriver. I wonder how many people have read that article bought resistors and start looking for the +/- markings!!!!!

Chris

Good one

Dave

[Radio Wrangler]

Anyway, there is nothing wrong with using 1% tolerance resistors where 20%, 10% or 5% parts had been fitted.

The tighter tolerance parts will all be central within the ranges that the wider tolerance parts would have been scattered over. So bias voltages and currents will deviate less from the design intent, you'll get better gain matching between channels and a number of similar advantages.

Maybe the results are below the thresholds of being noticed in many respects, but nothing has been made worse.

Of course, some people on knowing of the more precise resistors will declare that the greater precision increases the sterility of the sound, or some such imaginary problem. So we'd better not tell them

The resistance values that your 1% parts may be spread over are already included within the spreads that the wider tolerance parts cover, so the actual resistance values fitted could have occured with the wide tolerance parts. What has changed is statistical in nature.

David