I have the ARC SP-15. It has front panel switchable impedance loading. It is a nice convenience having it there, but the only time I turn that knob is when I change cartridges. Once the cartridge loading is dialed in, no need to change it. I fiddled with cartridge loading years ago, but each cartridge has an optimum setting and just doesn't sound right when using other values- at least to me. I'd say it is desirable and a priority to have an easily adjustable knob. It is a secondary priority to have it on the front panel vs. the rear panel. The rear panel would be kind of a pain, but still better than soldering in resistors.
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
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