Hi Rouge,Rogue wrote:I don't think the DI box is the problem. Like I said, I did a test where I recorded a progression with the Weber attentuating and recorded the same progression just be turning the Weber to bypass. The bypassed signal sounded much better, and even more interesting the wave form looked more "free" as well.phatt wrote: Hi chum,
Have you considered the DI Box might be the problem?
I'd have the lid off and a quick schemo down on paper to see whats happening inside that thing.
Check my simple *Voltage divsion on page 3* thats all you will need.
If you wish to use the weber, a speaker or resistor,, or other weapon of choise makes little diff as long as you have a load the Voltage division works a treat.
This is kind of what the waveform looks like with the Weber attenuating...
This is what it looks like with the Weber bypassed...
These are not the pictures from my test, but that is what basically what they look like. The levels were the same. The sound of the bypassed weber sounds much better, more open and clean, than the attenuated signal and the waveform would suggest it as well.
I haven't tried more expensive attenuators, but I suspect they all pretty much degrade the signal at full load.
I measured the load from the weber. It's about 27ohms.
As for using the speaker motor alone....DON'T!!!!! I tried it and there was arcing around the magnets. I very quickly ended this experiment as I didn't want to damage my amp.
Those two screen shots have got me to thinking again.
Have you considered that you might not be picking/strumming the guitar as hard in bypass mode?
I noticed you mention you use a 50Watt Amp somewhere,,, so it would be an automatic reaction to play a little less hard without attenuation engauged. This would definitly give a difference in SPL going to tape.
(Yikes A 50Watt Amp in a small room is deafening )
The only way I can think of to be sure would be to isolate the Amp in a sound proof room and have someone switch Attenuator on and off without you knowing while you play the song through a headphone set or monitors.
Just a thought.
If the problem is still there then yes absolutely the attenuator is effecting the level out.
In which case I'd look at the voltage division in the weber unit. (If that is where you take you line level from?)
The 3 schematics shown here use voltage division that to my mind is way to low.
I believe the series resistance should be large so as to isolate it from Speaker,Attenuator or whatever load.