Topic: Aerco MP-2 preamp - Part 2

[Hypnocracy]

Gefell M200>Aerco MP2>Tascam DR2d

https://soundcloud.com/hypnocracy/rosalee-chris-robinson-brotherhood-live-2015-07-24

Lovin' It!

The 3.5 mm stereo connector is never reliable for serious use and is just there for a quick check with a pair of headphones.

I've heard noise from using the mini stereo out...rough movements...But since it was going to the DR2d I never considered the mini output on the Aerco to be suspect any more than the mini stereo recorder input...

Team Members do you go RCA > 1/8 Stereo?

[spyder9]

Gefell M200>Aerco MP2>Tascam DR2d

https://soundcloud.com/hypnocracy/rosalee-chris-robinson-brotherhood-live-2015-07-24

Lovin' It!

The 3.5 mm stereo connector is never reliable for serious use and is just there for a quick check with a pair of headphones.

I've heard noise from using the mini stereo out...rough movements...But since it was going to the DR2d I never considered the mini output on the Aerco to be suspect any more than the mini stereo recorder input...

Team Members do you go RCA > 1/8 Stereo?

Yes, since day 1.  That 1/8 out is NOT a clean line-out.  As Jerry said, it was intended for headphones.  A good-ole-fashion Y cable from Ratshack or a custom jobbie from Ted Gakadis, has always been the best solution for me.  I've owned & operated my Aerco for 10 years.

[aaronji]

I would also recommend the RCA outs.  For my bag set-up, I have found that right angle RCAs work particularly well.  For the record, though, I have run the 1/8" out a couple of times and it sounded fine...

[Hypnocracy]

Yeah...I've had it out for three shows and ran just Mini out with no problems...message sent to Ted...need to get that and the latching power cable pigtail I have tied to a Tekkeon for Lockn'

[easy jim]

I've never had problems with the mini output on my Aerco, though the channels are inverted from the RCA outputs.

[raoulduke]

Does anyone have a current email address for Jerry? I emailed multiple addresses Monday with either no response or delivery errors.

jerry@chamkis.me
jerry@aerco.net
sales@aerco.net  (delivery failed)
jerry@jchamkis.com  (delivery delayed)

For anyone who has an Aerco outfitted with internal lithium poly batteries:
  Any recommendations on where to buy replacement batteries?
  Is it easy to swap them out? Do they snap in or is soldering involved?

[aaronji]

Maybe try jchamkis@bga.com.  That is one he has used with me in the past (in addition to jerry@aerco.net and jerry@jchamkis.com).

No idea about the battery, though.  If you find any information about replacing it, please post here!  Mine is still good to go, but I (and others) will surely face that issue at some point...

[it-goes-to-eleven]

Jerry sometimes does live sound production for films. Those gigs can have him isolated on site for days. So maybe that is where he is. Or on vacation.

[spyder9]

The jerry@chamkis.me is the last known email address I used to communicate with him.  That was a year ago, August.

I found his phone #.  PM me if interested.

[darby]

The jerry@chamkis.me is the last known email address I used to communicate with him.  That was a year ago, August.

I found his phone #.  PM me if interested.

I'm having Jerry work on a box for me now, and that is the email I use to communicate with him.
He is not very fast, and sometimes takes a while to respond.
I'll touch base with him about the replacement battery and see what he suggests.

EDIT: I sent him an email this morning and will post any info he shares with me here.

[spyder9]

The jerry@chamkis.me is the last known email address I used to communicate with him.  That was a year ago, August.

I found his phone #.  PM me if interested.

I'm having Jerry work on a box for me now, and that is the email I use to communicate with him.
He is not very fast, and sometimes takes a while to respond.
I'll touch base with him about the replacement battery and see what he suggests.

Nice!  It would be great hear if he found a good supplier.

[darby]

here is what Jerry said:

Hi Michael-
Batteries are available on the web, they're 7.4 volt 900 MaH helicopter batteries. However, since there are two in parallel it's very important to have a matched pair as any difference will reduce the lifetime significantly.

There are also slight variations in size and they're a tight fit so it's tricky to get ones that work well, I have lots of useless leftovers that get re-purposed for in-shop instruments and projects. I sell the matched pairs for $100 / pair plus shipping.

They plug in to a little board at the back of the case, no soldering is required. It is however delicate work in a tight place so I'll do the job if you pay the shipping both ways.

Regards-

Jerry

[aaronji]

There is a good picture of a battery that Jerry uses (or, at least, used) in this Yard Sale post (the next to last photo). 

[achalsey]

One of the knobs on my MP-2 fell off.  Has this happened to anyone before?  Do I just need to find the right screwdriver to tighten the little screws on the knob?  Is it even a screw?  An allen key doesn't fit.  Tiny torx maybe?

[goodcooker]

Mine fell off the second time I used it. Thought I had it tightened back down with a very small flathead screwdriver that seemed to fit then it fell off again and now I can't even find it,

Good thing I run it on +20dB all the time anyway