The treble on the equalizer doesn't seem to be working. The eq seems to have lost something. No depth to the sound. I've recently had it serviced but hasn't helped. Its lost its warm bright feel cheers

To achieve a tone similar to Synyster Gates' A7X sound, you may want to start with the following settings:
Green channel:

• Bass: 5-7
• Mid: 2-4
• Treble: 5-7
• Presence: 5-7
• Gain: 7-8

Red channel:

• Bass: 3-5
• Mid: 3-5
• Treble: 5-7
• Presence: 5-7
• Gain: 8-10

When using the Boss MT-2 pedal, set the tone control to around 12 o'clock and the level to taste. This should give you a good starting point for a heavy metal tone.
It's important to note that these settings are just a starting point, and you may need to tweak them to suit your own personal taste, playing style and the room you're playing in.
Keep in mind that the MX112 cab will also affect the sound,so you may need to play with the eq settings on the head and the pedal to achieve the sound you are looking for.
Also, keep in mind that the sound of the DSL15H head with the MX112 cab will be different than the sound that Synyster Gates gets with his rig. However, the settings above should help you achieve a similar overall tone.

is the equalizer bypass down? If all channels are bad call Peavey

Sounds like a connection problem inside. Did you open the unit before and maybe not hookup the ribbon wires securely? Did you maybe spill something on the keys? You may have to open it up and do a visual check. Make sure you unplug it before you open it.

it sounds to me that channel is burn

you may have a loose connection

They come as a set of 6, with three for the treble and 3 for the bass... MAKE sure you have the correct ones for the bass as they will have three with larger holes to accomodate the larger strings.

Here is a link to a schematic that should be close to yours. A lot of these just have more channels but circuitry is the same.

http://elektrotanya.com/http://elektrotanya.com/behringer_xenyx-1222fx_v1000_dpm5m_ub-spsu2_sch.zip/download.html

This is a zipped file. The schematic including their typical EQ is on the first file of the zip. The power supply is the last.

At the site, click on the brownish button with a down arrow to download. You will need to unzip the files or extract them using winzip or other decompressing SW.

The most I can suggest for getting the shine back to the bass is to run an EQ before your preamp. Make sure all sliders are set to zero, then raise the higher frequencies until you get the sound you're looking for. This won't lose any growl, just accentuate the brilliance.

The best EQ to use would be a BOSS Bass Equalizer. You can use the same on your old T-Bird to accentuate the lower frequencies, and get almost the same sound.


Hope that helps!

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/cameron_463100ffd54b591d

resolder the three legs of the pots back down to the pcb. usually the treble feeds the bass, then from bass to mid then to ground. so if treble and mid are working its hard to imagine why the bass wouldnt be working. i would try to resolder, as you might have cold solder joints. keep it unplugged, pull off the knobs, open it up, remove the pcb screws and pull/flip out the pcb and resolder all of the pots.

It APPEARS that the MR8 does NOT include the ability to EQ. They have delay effects and the like built in, but no EQ.

To answer your question then, you would need to have an EXTERNAL EQ unit and loop the vocal through that unit to do EQ to do it right.

When mastering, the "powerful/natural/and bright would be filters that will emphasize the bass (powerful) or the treble (bright) but these are really not EQ's and you can ONLY choose one at a time.