Pre-shape questions

scooterboy Posted 2008-08-13 9:30 AM (#26437) Subject: Pre-shape questions Joined: April 2008 Posts: 288 Location: New Hampshire, USA I have an OP40 pre-amp, and I really like the sound with the pre-shape activated. But I was curious what it's really doing. Does it just simulate certain settings on the EQ? In other words, with the pre-shape off could I get the same result by adjusting the EQs to the right settings? Or does pre-shape do something more than that? And if I activate the pre-shape, should the EQ sliders be left at neutral, or is it fine to tweak it further? ProfessorBB Posted 2008-08-13 11:13 AM (#26438 - in reply to #26437) Subject: Re: Pre-shape questions Joined: January 2006 Posts: 5881 Location: Colorado Rocky Mountains Just a guess . . . works as an on/off controller for the eq? FlySig Posted 2008-08-13 12:11 PM (#26439 - in reply to #26437) Subject: Re: Pre-shape questions Joined: October 2005 Posts: 4081 Location: Utah It pulls down the mids a bit. I don't know if you can duplicate it with just the sliders. It is fine to pre-shape and then tweak the eq sliders some more if you need it. Trust your ears on what you need for eq. Paul Templeman Posted 2008-08-13 1:37 PM (#26440 - in reply to #26437) Subject: Re: Pre-shape questions Joined: February 2002 Posts: 5750 Location: Scotland It boosts the high & low frequency centres and dips the midrange. Think of it a bit like the loudness button on old hi-fi amps. It's the instant-gratification "smiley-face" EQ curve, and while it can sound good at house level or low to moderate gig levels, it can sound gutless and thin if you need to be loud. schroeder Posted 2008-08-13 6:29 PM (#26441 - in reply to #26437) Subject: Re: Pre-shape questions Joined: November 2004 Posts: 4413 Correct. Al Di Meola "I just set it flat. Perfect." cliff Posted 2008-08-13 6:35 PM (#26442 - in reply to #26437) Subject: Re: Pre-shape questions Joined: March 2002 Posts: 14842 Location: NJ . . . then he pisses on th'SoundMan for the rest of the night. Perfect. schroeder Posted 2008-08-13 6:52 PM (#26443 - in reply to #26437) Subject: Re: Pre-shape questions Joined: November 2004 Posts: 4413 Don't mess with Al. He doesn't do humour. Paul Templeman Posted 2008-08-13 7:21 PM (#26444 - in reply to #26437) Subject: Re: Pre-shape questions Joined: February 2002 Posts: 5750 Location: Scotland Or music. cliff Posted 2008-08-13 8:13 PM (#26445 - in reply to #26437) Subject: Re: Pre-shape questions Joined: March 2002 Posts: 14842 Location: NJ Al's a JerseyBoy. It Goes w/th'Territory . . . scooterboy Posted 2008-08-14 8:00 AM (#26446 - in reply to #26437) Subject: Re: Pre-shape questions Joined: April 2008 Posts: 288 Location: New Hampshire, USA Tough room! cliff Posted 2008-08-14 8:32 AM (#26447 - in reply to #26437) Subject: Re: Pre-shape questions Joined: March 2002 Posts: 14842 Location: NJ No Doilies-Knitters Here. Beal Posted 2008-08-14 9:16 AM (#26448 - in reply to #26437) Subject: Re: Pre-shape questions Joined: January 2002 Posts: 14127 Location: 6 String Ranch Fo-Sho