Input impedance and preamp caps


I picked up a used Don Sachs preamp with the .47uf output caps, that are rated for 80K input, but my amps are odyssey kismet mono that run 22K input impedance. What issues would I have just straight running the preamp withou the larger caps? 


thewatcher101
@thewatcher101

With a 20kohm input amp, no need to go any larger than 10uF, as a 10uf cap into 20kohm amp will calculate to be -3db at 0.8hz, so even 5uF will do

Cheers George
V-Cap has a nice calculator on their website where you can input the amps input impedance and capacitor value and then see what happens to the bass frequencies...

https://www.v-cap.com/coupling-capacitor-calculator.php
@ cal3713524

I had the same experience with my speakers, I had the supreme in their as the primary caps. They were lush and sweet, but not in an overbearing way, just rich which is great for a loud speaker sound. 

I added Miflex bypass caps to it, and it took away that sweetness, but I got better imaging, and more accurate tonal qualities. I think I could just live with the supreme by themselves. Humbolt cap test rates the SGO way higher then the supreme, but a few other people has preferred the regular supreme for loud speaker applications. They are just fun and addicting and non fatiguing, but others measure by ruler flatness - gain with wire. 

My speaker wire, preamp, and the supreme caps took out most of the glare in the system. 

I came to the realization that some glare is needed depending on what your trying to recreate. Since most live music events are amplified events, the glare recreates the venue of amplified sound. 

I might have went off the deep end and removed too much glare, so instead of sounding like an event,  you get a life like presentation, like someone singing without their voice being amplified. It also takes away some shimmer from instruments that have their own form of glare. 

Glare also give a little bit of immediacy and edge that can be fun, but super long listening sessions, glare is still not preferred.