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Greetings -

Can anyone advise whether I should be using TS (unbalanced?) or TRS (balanced?) cables from an RNP to a Delta 44 (or whether it matters)?

Thanks kindly.

- Richard


Boswell Wed, 05/27/2009 - 04:22

TS leads will work in this case, but for running from a balanced output to a balanced input you should really use balanced (TRS) cables.

However, your main concern here is not the balancing but the signal levels. The RNP will drive at +28dBu (balanced or unbalanced), where the Delta 44 clips at +14dBu. This means you are in great danger of overloading the Delta. I would consider getting a pair of switchable line-level attenuators that have a 15dB attenuation setting. These are probably only available with XLR I/O, so you would need a complementary pair of XLR-TRS cables. Avoid attenuators that are designed for microphone levels only. If you are handy with a soldering iron, you can make a 15dB attenuator using a pair of 4K7 resistors and a 2K resistor, the assembly housed in the jack plug or as a lump in the cord.