Man do you have this wrong. Your main preamplifier, I presume is the tube, you want to drive the fronts for surround sound via the Lexicon, therefore, you take the left and right surround sound outputs from the Lexicon and run them into the tube preamplifier into an aux in. Then you set the level of the tube preamps volume control with an SPL meter until all channels are at the same level, you then mark this level on the tube preamp as a reference level and everytime you place the Lexicion you must switch the tube preamp to aux in and set the tube preamps volume to the reference level you've noted before and voila you have a two channel tube preamp coupled to a Lexicon for surround.
Best way to connect 2 preamps to 1 power amp
Hi,
I have 2 preamps; 1 tube 2-channel for musics; 1 solid state pro-logic 5 channel for movies; both have RCA output. The power amp for front channel is lexicon 212 (Bryston 3bst); has both xlr & rca inputs w/ selector switch. Shall I:
1) use rca y-adapter for the 2 pre-amps to the 212
2) Use rca for the tube & xlr (w/ rca xlr adapter) to the 5-channel. Use the selector switch to change source.
Please advice any concerns/problems for any/both connections. Or any other better solutions.
Best
I have 2 preamps; 1 tube 2-channel for musics; 1 solid state pro-logic 5 channel for movies; both have RCA output. The power amp for front channel is lexicon 212 (Bryston 3bst); has both xlr & rca inputs w/ selector switch. Shall I:
1) use rca y-adapter for the 2 pre-amps to the 212
2) Use rca for the tube & xlr (w/ rca xlr adapter) to the 5-channel. Use the selector switch to change source.
Please advice any concerns/problems for any/both connections. Or any other better solutions.
Best