SteveC;163393 Wrote: > 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
Steve, Have you looked into the endler balanced attenuaters? There is a thread on them. That might solve your sub prob. -- tomjtx ------------------------------------------------------------------------ tomjtx's Profile: http://forums.slimdevices.com/member.php?userid=7449 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
