[Haemus]

Appreciate your opinion how important is to have matching pair of Bryston monoblocks, i.e. consecutive serial numbers.
What are detriments of getting preowned say 7BSST from different vendors and these are built, year or two apart?
In above scenario, for the sake of cosmetics, is it possible to order faceplate and change it myself, or such operation is strictly in dealers domain? Hint at the cost would be welcome.
thank you.

[Levi]

If one is to buy a third or fourth 7BBST for a multi-channel/multi-amp setup, I would assume all 7BSST should be identical in sound, gain levels, etc no matter which serials you have.  Mike Pickett?

[sfraser]

Stick with the same generation, don't mismatch (ie. 7BSt VS 7BSST). You could always provide Bryston with the S/N of he two units in question . I am sure they would forward you with copies of the final test sheets. That may provide some useful information. Or alternatively Bryston may retest both units to ensure they are working within the original operating specs.

[JBLMVBC]

Indeed, don't mix generations NRB with SST.

Appreciate your opinion how important is to have matching pair of Bryston monoblocks, i.e. consecutive serial numbers.
What are detriments of getting preowned say 7BSST from different vendors and these are built, year or two apart?
In above scenario, for the sake of cosmetics, is it possible to order faceplate and change it myself, or such operation is strictly in dealers domain? Hint at the cost would be welcome.
thank you.

[HooStat]

Practically speaking, it doesn't matter at all.  They should all have the same gain. Most likely, you won't hear any differences at all.  Even if they are ST and SST and SST2.  Others will disagree, of course.  You can test it for yourself by having someone randomly switch the speaker cables and see if you can hear any difference.