Search results

Ooohh. The XLR mounted one sounds perfect. I have use the AMZFX multipurpose opamp board for this in the past but had to modify it to remove the gain he designed into it and added a voltage divider to the input because the output was still too hot.

No build documents available yet so I’m wondering if this will be capable of using the inverted and non-inverted outputs simultaneously for use as an active direct box. ?? Doesn’t seem like there are quite enough components on the board to do this the way I am familiar with...

Been quite a while and couldn’t remember what I did so I had to crack it open and get a pic. I did standard diodes on the low gain side and on the high gain side I used germanium hard clipping and asymmetrical combo for soft clipping. Then I squeezed in an external switch to select between...

Yes there are lots of Marshall flavored pedals designed to make your amp sound similar to a Marshall, but few preamps to use in conjunction with a cab sim to take the place of an amp.

I have built the Cobbler preamp and use it as a clean pedal platform along with the Unicab to run direct to FOH and it works great. I recently bought the Bobby preamp board planning to build a Marshall flavor to use as well. After reading some reviews of the Sheriff that it is derived from, I...

A very good suggestion. Alternatively, I could put in a separate voltage multiplier for the Unicab and DI and just use the separate 9v supply.

I have built this amp sim box out of a Cobbler, Unicab, and an AMZ opamp board for an active DI output. https://forum.pedalpcb.com/threads/amp-cab-di-experiment.16398/ I want to run it from a spare 18v output on my power supply instead of a separate 9v power supply for better headroom on the...

Turns out the unpleasant distortion I was hearing was not from the Cobbler after all. The output of the DI was too hot causing clipping in my recording interface even with the input gain all the way down. I had to rework the DI circuit remove the gain from. Took it to band practice instead of my...

Anyone know if there would be a benefit to running the cab sim and DI at higher voltage? The Cobbler has the voltage doubler circuit in it and I have to keep its output level no higher than 9 o’clock or it will overdrive the cab sim.

I think my only complaint would be that even with the gain low on the Cobbler, there is always some slight distortion on the treble that doesn’t really sound good. I’m guessing it’s the 1N4148 diodes in the first stage that are clipping. Maybe I should take them out or use a larger capacitor...

This is my Amp/Cab/DI experiment. Cobbler preamp into the Unicab cab sim, then an active DI circuit on the AMZ opamp board. There is also a 1/4” output before the DI I can use if needed. I have tested it into a USB interface and monitored through a class D amp and full range speakers. It is...

I had this leftover back box for an Aiphone door station at work and just had to build a multi-fix out of it. These 3 work great together. I just need to find a plate to cover the bottom.

Some new information. I was doing some more testing and put my Kliche overdrive between the Magnatron and Van Pelt. I was using the Paragon previously. The volume drops to about half with the Kliche turned on after the Magnatron as opposed to about 5% with the Van Pelt. So, same problem but...

First post here but I’m not new to pedal building. Amongst my many builds I have built a Van Pelt drive and Magnetron delay and just discovered that if I connect the Magnetron into the Van Pelt, the output volume cuts down to almost nothing. Both pedals work fine in all other contexts and it...