I would suggest trying 2 solutions. (1) You could try using the Aux-L & R unbalanced or balanced output. It is downmixed stereo 2 channel replica of whatever is being played. It is similar to DVR-OUT or TAPE-OUT monitoring outputs.
- When you play SPDIF or HDMI sources, TAPE & DVR-OUT play that(**) as the downmixed 2ch digital through internal DAC (which is the same as to what AUX does).
- When the source is analog, TAPE & DVR-OUT play internally bypassed L and R channels, with a gain of about 1/3(*) (which AUX will also reproduce, with a gain of ~1, through an internal DAC)
- When the source is analog in bypass mode, TAPE & DVR-OUT play also the same internally bypassed L and R channels with a gain of 1
(which AUX will also reproduce, but only if you set SUBWOOFER in-Bypass=ON)
AUX L,R functions basically the same way except it passes through the main volume controller in the SP3 (while DVR and TAPE-OUT have a fixed gain). In addition, gain of the AUX L,R can be also offset (trimmed) in the MISC or OTHER submenu. In addition AUX has a balanced output which would work well with the BHA-1
You could also (2) use the Headphone Output on the SP3 front panel, but you would need to make a cable to connect a 1/4" headphone jack to an unbalanced or a balanced input of BHA-1.
Regards,
Stan Bleszynski
Bryston
Notes
(*) The lower DVR & TAPE OUT gain in the analog versus bypass modes, results from the default multichannel speaker output configuration of the former. It is needed to prevent an internal signal clipping at max amplitude)
(**) TAPE and DVR OUT are the monitoring outputs which play all currently played sources except themselves! DVR-OUT is muted when you select DVR source to play, and TAPE-OUT is muted when you play TAPE source!
This behavior enforced by the common standard when, for example one either plays from the TAPE device or records onto the TAPE device but plays and records to the same device at the same time.