I recently started running a Transporter without preamp into a pair of valve monoblocks - PrimaLuna Prologue Sevens - with success.
* The output impedance of the Tp is 100R, vs the amps' input of approaching 100kR, which is a ratio of 1000, against rules of thumb saying anything above from x10 to x250, so there should be no problem of treble roll-off due to impedance mismatch. * The max output of the Tp is 3Vrms and the amps require as little as 1Vrms for maximum output so there is no prob hitting maximum volume I didn't expect any electrical problems or gain problems, and there aren't any :) The sound is excellent. There are two drawbacks so far: * I have no feed for a sub. This could be added either by RCA Y-adapters on the Tp RCA output, or by drilling and mounting an extra RCA pass-through socket on each amp. Note that the balanced outputs are fixed level so I can't used these :( * Other digital sources such as laptop can be connected in, but to use other analogue sources one must use an ADC into the Tp, such as the Behringer SRC2496 -- SteveC ------------------------------------------------------------------------ SteveC's Profile: http://forums.slimdevices.com/member.php?userid=665 View this thread: http://forums.slimdevices.com/showthread.php?t=30661 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
