"Arny Krueger" wrote in message
...
"S O'Neill" wrote in message

Chris Hornbeck wrote:

On Thu, 14 Oct 2004 06:13:01 GMT, "Paul Stamler"
wrote:


Unfortunately, this may or may not give good results. The 1/4" RCA
adapters he mentions short out the ring connection to ground. On
some preamps this causes no problems; on others it causes severe
distortion, even on the tip connection. Try it and see, but if you
get distorted-sounding results, try the stereo-1/4"dual RCA
adapters I mentioned.


God dwells in the details here, ...

The details may be discernable by means of logical induction - the
schematic
for the predecessor SX-201 can be found at
http://www.symetrixaudio.com/tech_su...cs/202_1A1.pdf .

Okay, looking at the schematic tells me that the ring is connected to an
opamp which is downstream from the opamp to which the tip is connected. So
an unbalanced 1/4" adapter, as Arny suggested, should work fine.

My original concern, before seeing the schematic, is that some designs I've
seen do a balanced output by taking the signal from previous stages and
running it through an inverting amplifier, the output of which feeds the
ring of a TRS and/or pin 3 of an XLR via a build-out resistor. The output
also feeds a second inverter, the output of which feeds the tip and/or pin
2. Very nice design, since both sides are fed by essentially identical
amplifiers; only problem is that if the ring/pin 3 is shorted to ground,
that wipes out most of the signal from the first amplifier, so the second
amplifier gets a very low-level, distorted signal.

The Symetrix doesn't do this, though, so the OP should be fine. I would
second Arny's advice to keep the level control set highish on the recorder
and lower on the preamp.

Peace,
Paul