There is a black friday deal on Ampeg PF-20T in my home town. I am thinking about it... My plan is to send the signal from Ampeg's XLR output to XLR input on my MB Little Mark III to achieve gigworthy sound levels... Does anybody do this?
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Ampeg PF-20T to (power) amp
- Thread starter Zbysek
- Start date
Have done in past with a PF-50T . Worked great . Sounded better into effects return . Takes the Mark Bass pre-amp out of signal chain .
I'd like to give that a try with my 20T. You would need one of those Low to Hi Impedance converter thingies though to run into an effects return, right?
Getting Saturated Tube Amp Sound at Low Volume
Hi Zbysek
Funny! Two threads about the same thing.
One guy wants low volume the other one wants louder!
Like I posted on the other thread: Use your effect return. It works just fine! (did it with a PF50t)
It works without thingies!
may the bass be with you
Wise(b)ass
The effects return on Markbass amps doesn't bypass the Markbass preamp.
Getting Saturated Tube Amp Sound at Low Volume
Hi Zbysek
Funny! Two threads about the same thing.
One guy wants low volume the other one wants louder!
Like I posted on the other thread: Use your effect return. It works just fine! (did it with a PF50t)
It works without thingies!
may the bass be with you
Wise(b)ass
Hi Wisebass,
yeah, it's no concidence-the other thread inspired this thread...
What are the advantages of going into effects return? In other words: why to by-pass the preamp? THX
Why would you want to pipe a TUBE pre through a SS pre?
That would be kind of like having a nice tube amp & then using a SS overdrive pedal.
That would be kind of like having a nice tube amp & then using a SS overdrive pedal.
Because I used to own a Little Mark II and it didn't bypass the preamp, and the only difference between the two is an improved DI.
Yeah Jimmy , I forgot about that . I got rid of that head . Ampeg and GK only now .
Just bought a pf 20 t last week to use it with my eden wt300. The idea is to use it on its own at home and with the wt for louder stuff. I’m hoping the extensive wt eq and the ampeg tubes work really well together.
Using the effects send and return did work well. No need for impedance thingy’s. The tricky part is to dial in all the different gain levels on top of each other to get something I like at the level I want.
Using the effects send and return did work well. No need for impedance thingy’s. The tricky part is to dial in all the different gain levels on top of each other to get something I like at the level I want.
For this to work, you need to be concerned with level matching and converting from balanced to unbalanced. Per the PF20T manual, the Transformer Balanced Out is Line Level.
Using a line matching transformer would convert from balanced to unbalanced, but also shift the signal, so not the right tool.
For example, the Shure A85U matching transformer specifically says it is not useable with line level, and the Shure A95UF matching transformer user guide indicates the voltage ratio from low (XLR plug) to high impedance (1/4" plug) is either +22 or +28dB depending on which taps are used. Line matching transformers are generally used for microphone level signals.
If your Effects Return is line level you will need a properly wired adapter to convert from balanced XLR to unbalanced 1/4" TR plug. If your Effects Return is instrument level, you will also need an inline pad such as a Shure A15AS to knock the level down.
D
Deleted member 165050
Guest
Surely using the LM XLR input and setting the LM eq flat and filters off is the way to go?
Specs from the Little Mark III webpage suggest you are correct:
"BALANCED INPUT (XLR): impedance 100 Kohm, max. voltage 25 Vpp"
Ref : Invalid Link Removed
Isn't the pad for input from the instrument cable jack?
There won't be anything plugged into that jack in the MB.
There won't be anything plugged into that jack in the MB.
