Re: Fishman SA220 (Fishman SoloAmp) report
Is this a Voicelive (orignal) or the newer version? Note that the AUX input of the SA220 is unbalanced stereo on a TRS Jack. This is normally the route you would feed a mixer input using a basic "insert" type cable (two mono jacks feeding a 'stereo' jack), from the L and R channels of the mixer output... now, on the Voice Live 2 you have both XLR and 1/4" jack outputs. You would use the jack outputs via an "insert" type lead feeding L & R mono signals to the TRS (stereo) jack labelled 'AUX" on the back of your SA220. If you are using an XLR cable, from what I can see of the Voice Live, you may be feeding just one channel, not both. For a mono feed you should be using the LEFT channel, not the right. I would not bother with the XLR cable here, as it is a line-level signal and is only a short run.
Originally Posted by zuma48
An unbalanced signal does not affect sound. Not in any way at all, certainly over short runs. It can cause problems over very long runs, 75-100 feet or more. Over short runs, 10-15 feet or so, unless you are in an extremely noisy (in the electrical sense) there is no difference. The key advantage of a balanced line is noise/interference rejection. This does only come into play on long cable runs, or in exceptionally 'noisy' environments (right next to electric motors, for example), with low level (mic, for example) signal levels.
In fact, many, many small mixers will send a balanced signal out on both channels, but to save space, they do it via TRS jacks rather than XLR sockets. This does not affect the signal - just the connector used. XLR sockets are quite bulky - TRS jacks are very compact.
Either way, if you get the gain structure set right, and use the right cables, you should be fine with a feed from either a Voice Live or from any decent small mixer.
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