Re: low signal & noise - Sony 44B & Tascam DR-40
 

If you're looking for a decent portable preamp to use with your DR-40, the new Roland DUO-CAPTURE EX ($200) is worth looking at. I tried it at Guitar Center and the preamps are very quiet, significantly better than the DR-40.

I decided against it because I wanted a simple integrated solution, but the sound was quite good.

DUO-CAPTURE EX: USB Audio Interface | Roland U.S.

Re: low signal & noise - Sony 44B & Tascam DR-40
 

That may not work so well with the DR40 unless it has nominal +4dB analog outputs. I see what appears to be 1/4" outputs, but Roland does not state op. level or bal/unbal. Likely unbal -10dB for monitor inputs. Otherwise it looks interesting for computer based acquisition.

Re: low signal & noise - Sony 44B & Tascam DR-40
 

Good call, specs list the nominal output level as -6dB.

It seems odd that Roland would choose an output level that is higher than consumer -10dB and lower than professional +4dB.

Re: low signal & noise - Sony 44B & Tascam DR-40
 

Great thread. Lots of info. I too am using a Tascam DR-40 with a Sony ECM-44B. I love it. I run the input gain at about 50% and have the limiter on. The levels are lower than perfect, but I fix that in post. I run it lower to eliminate clipping.

If you looking for an external mixer, have you looked at the Rolls MX54s Promix Plus? I own one because it runs on batteries and didn't break the bank. I've never used it with the Tascam/Sony combo as I've not had a reason to.

Rolls Corporation - Real Sound - Products MX54s Promix Plus