How important is ext. adj. for cartridge loading


Hello Folks,

A New Phono Preamplifier will soon be introduced - MSRP around $1750 - $2000

A small "focus group" questionnaire - On a Phono Preamplifier how important is it to you that MC cartridge loading is adjustable from the front panel of the amplifier? How often do you "fiddle" around with loading ? Enough to warrant the cost increase, probably about $200 for the additional switches faceplate machining etc. pricing the preamp towards the higher end of projected price?

Same goes for MM/MC switching Would external selection be preferable to a internal Jumper setting ?

Is a MUTE function desirable on the front panel as well?

MC loading is at 100, 220, 330, 500 Ohms and 47K Ohms, do you think these are OK or would you like other values?

We have designed the unit so it can be used as a fully differential unit as well with one balanced input and one balanced output, you'd need two of them for stereo, do you find this desirable? Would you prefer this mode of operation to be selectable from the outside (switch on back) or would internal jumper selection be enough?

Thanks in advance for your thought on these questions

Peter
128x128pbnaudio

Showing 1 response by stanwal

I have never had it, have recently sold a Blue Circle which had rear panel RCA plugs and a Dynavector 75 which had internal switching which my aging eyes had fits with. Currently using a MF Kw phono stage with back panel RCA plug ins. I find these satisfactory, they have the advantage of you being able to customize loading plugs, but if good quality parts were used and the price increase was in the order of $200 or less I think many would be willing to pay for the connivence and quick comparison ability of front panel switching.