Hi, me again.
I've built an Amek 2500 based preamp and it works and sounds fine.
This is the schematic:
http://www.dmlab.jexiste.fr/Amek M2500/amek2500micpre_schematic.pdf
But I have some problems with gain levels.
I think the preamp gives too much gain (not 20-60 dB), including at minimum levels.
I've made two records (voice and guitar amp) using a LA MX2 preamp and two TBONE SC400 condenser microphones for comparison.
MX2 preamp gain was adjusted at mid-level (aproximately) and Amek 2500 gain was adjusted at MINIMUM...nevertheless, preamps out signal levels are similar.
You can donwload audio files here:
http://www.mediafire.com/download.php?8pfawnkvvjh
I've built an Amek 2500 based preamp and it works and sounds fine.
This is the schematic:
http://www.dmlab.jexiste.fr/Amek M2500/amek2500micpre_schematic.pdf
But I have some problems with gain levels.
I think the preamp gives too much gain (not 20-60 dB), including at minimum levels.
I've made two records (voice and guitar amp) using a LA MX2 preamp and two TBONE SC400 condenser microphones for comparison.
MX2 preamp gain was adjusted at mid-level (aproximately) and Amek 2500 gain was adjusted at MINIMUM...nevertheless, preamps out signal levels are similar.
You can donwload audio files here:
http://www.mediafire.com/download.php?8pfawnkvvjh