Mesa Boogie Bass 400+ Direct Out; live or recording direct... what's your experience?

Yeah I wasn't to pleased with my 400+'s somewhat grainy sounding DI through the PA or recorder either. I seem to remember hearing its tapped from the powertube/output stage so Its a fairly dirty signal at most any higher volume levels.

Have you tried plugging most any DI box into the 400+ Effects-Send jack? You'd end up with a balanced preamp signal like most other amps use for their DI. Give it a shot, I think you'll like it.

 

I've never recorded with my 400+ but I've been very happy with its DI. In fact, I think the fact that the DI takes the signal off of the OT rather than just the preamp is one of its major selling points as an all-tube head. Sound engineers have been pretty happy with the Mesa. I once let one of my friends use my rig after my band's set during a benefit gig. I really liked the sound that was coming out of the FOH.

I haven't tried micing a cab with this particular head, but I've been curious as to how that would sound.

 

haha, i cant believe ive never tried this. i dont love the DI on the 400+ so much, either. when faced with situations where i have to DI, i just use what they want me to, or my el-cheapo that lives in the gig bag. i play better when i like what i hear, and i will always have an amp on stage. besides, it gives the soundman more time to concentrate on making the gui**** sound good .

 

really? i never knew that. if that's true, i agree it should be a big selling point and a big improvement over regular di's. maybe it's just the way they're set. mesa does have the fender tone stack, so that could be changing the sound negatively for some of these guys.

 

In my limited recording experience with the 400+, I have found the DI "different" from any other amp I've had a line coming out. It's not bad, but plugging into my basement pro-tools get up and it requires a completely different approach than the standard clean DI.

I personally like using a microphone (Audix bass/kick mic) because it sounds just like what I can hear standing next to my cab. I know it would be more accurate or whatnot using the DI, but it is personally easier to EQ my sound in a live in-home environment and just sample that, rather than try to recreate the sound that makes me happy.

 

One important aspect to consider about the mesa 400, and the 400+, is that the DI is taken off the secondary of the output transformer. If I remember correctly (I've owned the 400+, and currently own a 400) you are not supossed to use the DI by itself. You need to have a nominal load on the output. A speaker, or a dummy load. I bet it sounds like crap with out, and its really bad for a tube amp not to have a speaker plugged in.

For recording, I beleive mesa recomends using the effects loop, blend control all the way up, and the master vol off, so that you don't drive the output section. Check the manual to be sure....my memory is not what it used to be.

 

So here's a chunk out of the manual for the 400+, and yes, you've gotta have a speaker plugged in.

SLAVE LEVEL, SLAVE OUTPUT
The Slave system is an adjustable Direct Output that can be used to feed a mixing board
or another power amplifier. The signal is taken right from the output transformer where the
tone is best and loading problems are avoided. When using the Slave, be sure to first get
the desired sound on the Bass 400 with the Slave Level at zero. Then turn up the Slave
Level until the proper output level is achieved.
600-OHM BALANCED OUTPUT
A three-pin male XLR jack is provided for connecting to the balanced 600ohm
transformer. Again, the signal is taken from the speaker jack for best results. This output
has a fixed level of about 2 volts peak-to-peak (when the Bass 400 is at clipping level). It
is therefore suitable for either “mic” or “line” inputs on a mixer, although line-level would
be preferable. When using either the Slave or the Balanced XLR output, it is important
that a speaker (or suitable load resistor) be used.

 

i've always thought the di on mesa was sub-par but all these other suggestions are great so i'll definitely have to try em.

 

Here's the deal about the effects loop:

EFFECTS LOOP
Two pairs of Send and Return jacks are provided; one on the front and one on the rear of
your Bass 400 Plus. So whether you use effects devices on the floor or in a rack, patching
with your Bass 400 is clean and professional. A unique Blend control located on the upper
rear amplifier chassis (where it won't get broken or damaged) enables you to mix “dry”
and effected signals. With the Blend control at 10, all signals will pass through the
accessory effects. Set at 0, the Effects Loop is fully bypassed, as it should be when no
effects are used. Most players find an ideal setting between 2 and 5.

The Effects Return jack can also be used to plug directly into the 400's power section. The
Master can regulate sensitivity, and the Graphic EQ will be functional. If you wish to use
only the preamp section of your Bass 400, you can use the Effects Send jack as a preamp
output; be sure to set the Effects Blend at 10 and the Master to 0. This will prevent signal
from driving the power section, so running the amp without a speaker or load resistor will
be OK.