By
lo-fi
Mon Nov 08, 2004 11:57 am
Yes, valve compressors and tube compressors are the same thing - they use one or more vacuum tubes somewhere in the signal path. This 'warms' the sound in a pleasant way. Cheap valve models can sometimes cloud the sound a little bit, or give a too obvious distortion, but used with care, provide a full-bodied, warm compression.
Solid state compressors use transistors in stead of valves. This does not neccesarily make them inferiour, or cheaper. The DBX model you mention maybe doesn't 'warm' the sound like a good tube comp, but it can tighten up your drums, and provide lots of 'punch'. Then again, ALL good compressors warm your sound to some extent, because they 'fill out' the sound, and bring up decays and ambience/background noise.
My personal weapon of choice for drum compression is the Focusrite Compounder - this one fattens and tightens drums perfectly, and has a bass expander circuit for extra 'boom'.
Another type of compressor to look out for is the 'optical' or 'opto' compressor. These may or may not use valves, but always have an optical circuit to that provides the compression. Literally a LED or small lamp lights up according to the sound level. The light than triggers a light-sensitive cell, which in turn controls the attenuation. This configuration gives a very non-linear compression slope, which gives it a distinct sound. JoeMeek (now TFpro) make some of the most well-known optical compressors.
My advice: listen to as many compressors as you can to see what fits your sound. If you have no experience with compressors yet, it may be best to just get one and start using it, so that you become familliar with wat a compressor does to your sound. The DBX 166 would be a good place to start - it's a good comp, and you can always upgrade to a $2500,- tube model later.