Preamp: adjustable impedance + GAIN


I am looking for a preamp which must meet the following requirements:

- solid state,
- fully balanced,
- Two sets of main output XLR and RCA, (adjustable output gain is more preferable)
- adjustable input and output impedance,
- separated power supply,
- airy, dynamic, musical, big soundstage, transparent, emotive vocal.

Please advice me.

Thank you so much!
believer

Showing 1 response by mattmiller