AB763 Build on 16x8in chassis: is this a workable layout?

[mcamelo]

I thought he explained it well.

....I recorded live with a Tascam DR-40 digital recorder.  I used Audacity to convert to Mp3.  No post effects other fade outs....

The DR-40 is an old model, $140-$80 used. New thing is the DR-40X, $200

He absolutely did explain it well. Don't know how I missed it. I've never heard of a Tascam before so I guess it didn't register.

Thanks for the additional info, Dave.

These look handy. Are they easier to get consistent results from compared a conventional dynamic mic into a DAW? Positioning up a dynamic mic is tricky and I get varying results depending on where I place it. Is the Tascam less sensitive to position relative to the cone or just as sensitive as a SM57?

[dram56]

The internal mics on the Tascam portable recorder are a bit more forgiving than an SM57 directional type mic.


I have used SM57 mics also on different recordings.  I find that if you place an SM57 dead center on the center of the speaker and about 12 - 16" away to get the best results.
I have the mic horizontal pointing at the speaker.  On the mixer, I leave the EQ pretty flat.


Keep your DB levels around -6db.  You can boost that back up to around -3db in your recording software.  That way you won't clip, or overdrive your raw recording.


These clips that I made were very basic.  Just placed the recorder directly in front of the amp and played.  I used the freeware program Audacity to do some basic editing, like when the clip starts and ends.  Volume adjusting and fade outs.  I did not want to add any color to the sound, so I did not do any EQ adjustments.


Hope this helps.


Your amp chassis looks good.  The only thing I saw that may cause some unwanted noise might be the filament heater wiring.  Keep those wires from touching other wiring on the tube sockets.  Especially on V1, V2, V3 and V4.  And away from the Reverb tank In and Out jacks.
Those areas seem to pick up noise like a ham radio.  Good job using shielded wires on the Input jack and Volume pot.


Can't wait to hear how your amp sounds.


Dave