[quote name='Beedster' post='1044396' date='Dec 1 2010, 09:58 PM']+1, if you're paying, it's yours and the band's call, not the engineer's, if you're not happy with the sound, he's not doing his job. However, you'd need to talk through the pros and cons with him, don't simply say "I want it this way". He knows his gear and his room, and may have learned through years of experience that in the majority of cases, the way he's working gets the best results with bass. He may not be right in your particular case, but you'll probably need to get him on side to get the tone you want.
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I'm kind of in agreement here. Ultimately I think studio engineers tend to know their set ups and we tend to know our live sound. Obviously if he is making you sound different to how you hoped to sound then it is an issue. However I always go into the studio with an open mind and even bring in CDs of sounds I like sometimes to get the idea across.
The engineer changed a few of my basses around from what I had planned last time and the overall impression is that I am happy