Basic EQ settings for OT8

EQ guys are using on their cabs/systems. A good starting place if you don't have your own RTA.
Post Reply
Message
Author
User avatar
J_Dunavin
Posts: 1273
Joined: Sun Jul 09, 2006 3:13 pm
Location: Appleton WI
Contact:

Basic EQ settings for OT8

#1 Post by J_Dunavin »

Does anyone have some basic eq settings for their OT8s?
My DBX mic went kaput last night and subsequently I’ve overwritten my last saved settings :noob:
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba

User avatar
Seth
Posts: 3007
Joined: Thu Sep 10, 2009 8:06 pm
Location: Sacramento, California, USA
Contact:

Re: Basic EQ settings for OT8

#2 Post by Seth »

I don't have OT8's. But, in looking at the response chart...

Image

Like the SLA Pro's, it looks like the OT8 has a really nice native response curve, requiring very little EQ. Granted any corrections made based on the response curve alone wont take into account added room characteristics, it'll get you close enough. Honestly, it looks like the only correction I would do is -3dB at 8.5k on 1.55Q parametric filter. Might not even NEED it, but sometimes those highs jump out a little. Pull however much you need to make your ears happy, but my guess is -3dB should be about right. The 5k dip and two lumps at the bottom shouldn't need any attention and the slight rise in bottom end sensitivity below 500 will sound really good once crossed with the subs.
Build in process - 2 WH6, one Alpha 6a loaded, one PRV Audio 6MB250-NDY loaded

Two 2x6 shorty SLA Pro's
One T39, 16", 3012LF loaded
Tall AutoTuba, 20" wide, 2x 8" MCM 55-2421
TruckTuba, 8½" wide, 2x 8" MCM 55-2421

User avatar
J_Dunavin
Posts: 1273
Joined: Sun Jul 09, 2006 3:13 pm
Location: Appleton WI
Contact:

Re: Basic EQ settings for OT8

#3 Post by J_Dunavin »

Thank you!
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba

User avatar
Seth
Posts: 3007
Joined: Thu Sep 10, 2009 8:06 pm
Location: Sacramento, California, USA
Contact:

Re: Basic EQ settings for OT8

#4 Post by Seth »

You bet, Joe. Are you putting them to work or just puttering?
Build in process - 2 WH6, one Alpha 6a loaded, one PRV Audio 6MB250-NDY loaded

Two 2x6 shorty SLA Pro's
One T39, 16", 3012LF loaded
Tall AutoTuba, 20" wide, 2x 8" MCM 55-2421
TruckTuba, 8½" wide, 2x 8" MCM 55-2421

User avatar
J_Dunavin
Posts: 1273
Joined: Sun Jul 09, 2006 3:13 pm
Location: Appleton WI
Contact:

Re: Basic EQ settings for OT8

#5 Post by J_Dunavin »

Not a lot of gigs these day, but still getting a work out of em.
The OT8s and two T39s have been great for the size of gigs i've been doing, but I feel a little lake of mid bass and the highs are a little harsh. Hoping some auto EQ will help me out.
Probably warrants it's own thread, but i wonder if i upgraded to some Delta Pro 8s would help there? I feel the Faital Pro 8PR210 option would be too much for what i'm doing.
Maybe i just need more T39s 8)
2 - OTop8
2 - T39
8 - DR200
2 - DR250
9 - T24
6 - T45
1 - Auto Tuba

User avatar
Seth
Posts: 3007
Joined: Thu Sep 10, 2009 8:06 pm
Location: Sacramento, California, USA
Contact:

Re: Basic EQ settings for OT8

#6 Post by Seth »

Two more T39's would be a treat. I can't see different drivers giving you anything that EQ wouldn't take care of. In a pinch, you can use a free RTA app on your phone to check and see what your response roughly looks like. The microphone isn't calibrated or anything, but it's still more tuning info than not. Dayton has a new version of their inexpensive measurement microphone for phones and tablets with a USB-C connector, $40.

https://www.amazon.com/Dayton-Audio-iMM ... B0CMV914QV
Build in process - 2 WH6, one Alpha 6a loaded, one PRV Audio 6MB250-NDY loaded

Two 2x6 shorty SLA Pro's
One T39, 16", 3012LF loaded
Tall AutoTuba, 20" wide, 2x 8" MCM 55-2421
TruckTuba, 8½" wide, 2x 8" MCM 55-2421

Post Reply