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In the Forum: Audio Discussions
In the Thread: A quests for an ultimate preamp.
Post Subject: Might be...Posted by Romy the Cat on: 3/3/2020
 rowuk wrote:
A preamplifier shall be modular - the ability to insert n quantity (maybe 20?) of input cards on a backplane (for phono MC/phono MM/line level/Balanced/Single ended/TOSLink) as well as be configured for multiple outputs. Why send a preamp back to the manufacturer to get a couple more inputs?
Conceptually yes, but in practicality it never worked this way. Theta had a Casablanca preamp that was truly great, fully plug and play, with multiple configuration options. It sounded fine, well,  …at the Theta level. The idea of cause is wonderful but as in anything ease we need to look at the balance between comfort and quality. My wife use to ask me why at $500 turntable you start rotation with push of a baton but at $150K turntable you need to make the first few rotation of the platter with your hands… Her rational does make sense but hardly anybody who practice high-end audio would agree….
 rowuk wrote:
All preamplifier input channels shall be individually adjustable in gain and polarity.
The same as above but why the polarity? The front ends typically do not reverse polarity and if they do then the sores are typically very unstable from absolute polarity perspective.
 rowuk wrote:
A preamplifier shall have a front panel output for an oscilloscope/Spectrum Analyzer.
I would actually disagree with it. I never cared about the linearity of my preamp, why would I need TRA in there? And the scope? What is the point, what do you want to measure in there. If you care too much about the pre standard equalization curve for records then it is not preamp duty but the phono stage… and BTW the measurements would not show anything.
 rowuk wrote:
A preamplifier shall have at least 1 set of inputs on the front plate. Why should we crawl behind the rack to test a new piece of equipment?
Very enthusiastic support! Gods, how did I did not think about it what I made my own preamp?!!!

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