 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? |
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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….The technology is there (every professional ethernet switch uses this technology for in and output), dependable and you buy what you need - when you need it, upgrade when available. Just imagine NOT having to have sent your Placette to Guy, rather just having him send you the new module (more gain, additional inputs, lower output impedance). I agree with your wife. Why get the edge of the platter greasy - start management on a 150K turntable makes sense! Dream Turntable in 2020 would be another thread.
| rowuk wrote: | | All preamplifier input
channels shall be individually adjustable in gain and polarity. |
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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.I have had CD players that invert.
| rowuk wrote: | | A preamplifier shall have a
front panel output for an oscilloscope/Spectrum Analyzer. |
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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.If I have a "funny sounding" recording (more often pop music than classical), I connect the oscilloscope now. Once I "see" the problem, I do not tear down the playback to try and find "other" problems.
| 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? |
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Very enthusiastic support! Gods, how did I did not think about it what I made my own preamp?!!!
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