Thread: Preamps
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Bret L Bret L is offline
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Default Preamps

The best preamp is no preamp. In the case of CD players, DACs, and
tuners there is no reason to have a preamp but for the intransigence
of the makers who refuse to put convenient volume controls on them.
However, to provide for volume control, tone controls, switching of
units without moving cables and for phono sections (you could put it
in the turntable, but nooo) you need a preamp.


An ideal preamp should provide for:

1. A stepped precision attenuator so precise and repeatable level
settings may be made.

2. Internal provisions for balanced and unbalanced output with a
replaceable connector field panel. If transformers are to be used for
balanced output they should be plug-in style so they can be purchased
later and easily fitted.

3. Provision should be made for internal mounting of phono input
transformers for users of low output MC carts.

4. Low or high output, a balanced input should be provided for with
either a transformer or active internal electronics. This should have
a rational kind of four conductor connector. No attempt to utilize RCA
connectors for balanced connections should ever be made.