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Conference napalm::commusic_v1

Title:* * Computer Music, MIDI, and Related Topics * *
Notice:Conference has been write-locked. Use new version.
Moderator:DYPSS1::SCHAFER
Created:Thu Feb 20 1986
Last Modified:Mon Aug 29 1994
Last Successful Update:Fri Jun 06 1997
Number of topics:2852
Total number of notes:33157

2326.0. "Multi-Channel EQ's (>2 channels)??" by FGVAXX::LAING (Soft-Core Cuddler*Jim Laing*282-1476) Fri Apr 20 1990 17:44

    Related to my previous note (2320) ... I'm looking for a
    SINGLE-rack-space EQ unit that has at least 4 channels of EQ,
    i.e. not just a stereo (2x15) but more like 4-8 channels of perhaps
    2- or 3-band EQ per channel.  I'd like to use this in conjunction with
    my single-space 6-channel mixer (Furman) to "roll my own" 2-space mixer
    w/EQ . . . 
    
    The only unit I've seen is a Korg but its frequency range (5-bands I
    believe, per channel) was something like 250Hz-8Hz, where I'd prefer to
    go as low as 100Hz and up to 10Hz (isn't 100Hz/10KHz the standard to
    2-band EQ's?)
    
    Any pointers to such a unit???
    
    	-Jim
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2326.1three fit togther in a spaceNORGE::CHADIch glaube Ich t�te Ich h�tteFri Apr 20 1990 18:303
You could put several Alesis MicroEQ together...

Chad
2326.2STROKR::DEHAHNthe Galley's cookin'Mon Apr 23 1990 10:305
    
    Stereo or mono send/recieve? A Rane parametric has five channels.
    
    CdH
    
2326.3More on Rane?FGVAXL::LAINGSoft-Core Cuddler*Jim Laing*282-1476Tue Apr 24 1990 13:506
    Re .2
    
    What does each of the 5 channels have on this Rane unit?  It might
    be just what I need ...
    
    	-Jim
2326.4must have tiny fingersSTROKR::DEHAHNCarter tries harderWed Apr 25 1990 10:429
    
    I re-read your note and I don't think a multi channel parametric is
    what you need. You seem to want 6 channels of graphic eq. Each channel
    of a parametric contains ONE filter, a very flexible filter, but one
    filter nonetheless.
    
    6 Channels of graphic in one rack space is kinda pushing it a bit.
    
    CdH
2326.5bands vs. channels...AISG::WARNERIt's only work if they make you do itWed Apr 25 1990 16:4615
This is confusing -- here's proper terminology:

	Channels: number of separate equalizers, each having (usually) one 
	          input and one output
	Bands: number of frequency bands for each _channel_

Most parametric EQs have four bands or less. If you need more, it's easiest to
just daisy-chain one into another. It's a waste to tie up all those bands for a
single source if you're not using them all, which you SHOULDN'T! Over-EQ is
probably one of the biggest problems in sound. If you're doing something like
feedback control for live sound, and your really need more than four bands,
patch them together. However, the more you EQ, the more unnatural the sound is
likely to be.

IMHO, of course. Extreme EQ can be used as an effect, of course 
2326.6More detail on "what I'm lookin' for"...FGVAXX::LAINGSoft-Core Cuddler*Jim Laing*282-1476Fri Apr 27 1990 16:4719
    Ok, using this terminology, here's what I want:
    
    4 to 6 channels 
    Each channel of EQ having 2, 3, or 4 bands.  That's all ... I just
    want a way to do some rough, minor EQing of 4 or 5 sources (in my case,
    4 are keyboards (2 'boards each in stereo) and 1 vocal.  
    
    The term "GRAPHIC EQ" might be misleading because I don't want 4-6
    channels each with lots-a-sliders, does the term GRAPHIC EQ mean an eq
    that uses multiple sliders per channel, rather than rotary pots?
    
    BTW, it seems that "what I want" has been done, but not quite to my
    satisfaction ... a KORG unit exists with 6 channels, each with 5 to 7
    bands of EQ . . . but the frequencey range on these bands is 250Hz for
    the lowest band and 4KHz for the highest (I think).  Someone in here
    mentioned another KORG unit that's 4 2-band EQ's plus some compressing
    and/or noise gates ... this one I might check out ...
    
    	-Jim
2326.7Sliders make it nice tho...WEFXEM::COTEA friendly stranger in a black sedanFri Apr 27 1990 17:2311
    
>    The term "GRAPHIC EQ" might be misleading because I don't want 4-6
>    channels each with lots-a-sliders, does the term GRAPHIC EQ mean an eq
>    that uses multiple sliders per channel, rather than rotary pots?
 

     A fixed band/fixed q eq that used rotary pots instead of sliders
     would, in my mind, qualify as a 'graphic' eq. Sure, you have to
     imagine the curve, but it's there nonetheless....

Edd   
2326.8STROKR::DEHAHNthe broom's in the closetMon Apr 30 1990 11:317
    
    The problem is, you want it all in one rack space.
    
    Good luck...
    
    CdH