Goodday all,
I have a JLH 1969 amp and I intend to get a preamp in kitform to drive it with. NAC42 5 Clone Preamplifier Kit Single Ended Pre Amp | eBay Does anybody know if this would be a good choice ?
I have a JLH 1969 amp and I intend to get a preamp in kitform to drive it with. NAC42 5 Clone Preamplifier Kit Single Ended Pre Amp | eBay Does anybody know if this would be a good choice ?
It doesn't have a transformer or power supply. It doesn't have RCA jacks, the device that hooks up my whole system. It doesn't have a grounded steel box to keep the lamp dimmer hash or CB radio trash talk from blasting into your system. It doesn't have a selector switch to change between sources. As there are only three screw strips to do input and output, and one is two terminal, there probably not even a terminal for safety ground/grounding hub. It would be a nuisance stuffing two braids from two different patch coax cables into one screw terminal. I don't see any active devices, but these could be SMT, no telling what they are. It has only one control shaft, so if it is stereo it doesn't have a left-right balance potentiometer. It doesn't have a knob.
What were you planning to amplify anyway? CD players and computers have line level outputs suitable for driving an amp as is, typically. Selecting between sources involves a precious metal plated selector switch,precious metal contact relays, or a mixer circuit. I find switching between sources so 1950's, when one can have 3 inputs hot at once and at a reasonable level without fiddling when the source is changed, with a mixer. See this http://www.diyaudio.com/forums/anal...improving-disco-mixer-mid-fi-performance.html about the importance of the steel box and my follies at improving a $15 disco mixer with a nice steel box and 6 great slide pots into a decent performing RIAA mag phono/CD player/FM radio hub. The bottom line is, details matter.
What were you planning to amplify anyway? CD players and computers have line level outputs suitable for driving an amp as is, typically. Selecting between sources involves a precious metal plated selector switch,precious metal contact relays, or a mixer circuit. I find switching between sources so 1950's, when one can have 3 inputs hot at once and at a reasonable level without fiddling when the source is changed, with a mixer. See this http://www.diyaudio.com/forums/anal...improving-disco-mixer-mid-fi-performance.html about the importance of the steel box and my follies at improving a $15 disco mixer with a nice steel box and 6 great slide pots into a decent performing RIAA mag phono/CD player/FM radio hub. The bottom line is, details matter.
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