Finally scored a good deal. Kinda

ben62670

Well my X did for me. She was out yard sailing with her mom today. She bought some stuff from a guy, and he owed her a $1 change. He didn't have a dollar so he told her to grab something of similar value. I get a ride to the store from her(my car is dead), and when loading the groceries in the trunk I notice the little amp. I looked at it, and asked what it was. She didn't even really know so she asked me if I wanted it. I offered her a $1, and she was like no. So I offered her two bucks, and it was mine:) So there is this little cube amp that says Jamo MPA 101 on it for $5. It is a pretty neat looking amp. It is only 50 @4ohms x 2, or 100 at 8ohms bridged. It is setup to be run full range, or you can use the built in sub XO. I saw a toroid tranny in there(+30,0,-30vdc(can you say chip amp)), and I liked the case so even if the amp was blown(it may be) I would have a nice looking little case to use for my upcoming tube pre project. He gives it to her for the $1 owed in change. I may try it out as is, and then most likely rip out the XO junk, and auto turn on... This may end up being a nice little integrated hybrid tube amp, or a real neat looking tube pre. I hope it comes out half a pretty as Richie's work or Nick's.

leroyjr1

Got any pics?

ben62670

http://www.bhphotovideo.com/c/product/441248-REG/Jamo_93850_MPA_101_Amplifier.html

http://www.jamo.com/images/download/557.aspx

leroyjr1 wrote: »

Got any pics?

Later I'll post picks of the insides. It's a pretty neat looking unit:) I just don't have time to play with it now.

xj4094dg

Sweet! 300.00 amp for $2.00......

LessisNevermore

Nice score Ben!

There are(were) a couple more companies that do those amps.

http://www.emotiva.com/bpa1.shtm

http://www.parts-express.com/pe/showdetl.cfm?Partnumber=300-812

I bought one of the Dayton models for a friend of mine for their outdoor pool setup. Nice sounding little amps!

ben62670

Thanks for the Dayton link. I was just going to dive in and tear it apart, but after reading the reviews I may just try it stock:)

ESavinon

Your ex made 100% profit on her investment with you.
That's just typical.

mmadden28

LessisNevermore wrote: »

Nice score Ben!

There are(were) a couple more companies that do those amps.

http://www.emotiva.com/bpa1.shtm

http://www.parts-express.com/pe/showdetl.cfm?Partnumber=300-812

I bought one of the Dayton models for a friend of mine for their outdoor pool setup. Nice sounding little amps!

From what I've gathered so far, Emotiva is the OEM on those amps - well at least the Dayton one. The Dayton and Emotiva amps are rated at 2x75@4.

ben62670

The driver/output boards are setup for an extra pair of output devices(each channel). The stock PS caps consist of a pair of 6800uf's(50vdc), and the toroid is probaly around 250va. I am asuming that the EMO, and the Dayton use a slightly larger toroid, and PS caps. I have about 10 15,000uf(63vdc) caps here that are brand new. The boards are allready stuffed minus the extra output trannies. If I ditch the active XO's, relays, add the larger PS caps, and maybe get a slightly larger toroid I can kick it up a notch.
I could ditch all the extra electronics, use the case for the heatsinks, drop in some gainclones that I have built just sitting here waiting for a home. The heatsinks are over sized for the wattage the 50x2 my amp puts out. It also has a 12vdc fan for active cooling(variable thermal resistor). From all the reviews I read people have said the fan never even turns on. A simply line stage tube buffer with a b+ of 30-36vdc would be easy to do. Some tubes, and a transformer for the heaters would look nice on that case. It is a very sweet looking case. The enclosures I have been looking at are anywhere from $100-$170 shipped. A huge plus is that all the connectors I need are allready mounted. The best $2 I have spent:)

Dawgfish

Congrats on the score there Ben. Hope you are doing well.

Steve

AGUERRA

cant beat that for two bucks everyone has there price:D

stubby

ESavinon wrote: »

Your ex made 100% profit on her investment with you.
That's just typical.

I hear that! Sad but true.

TECHNOKID

ben62670 wrote: »

http://www.bhphotovideo.com/c/product/441248-REG/Jamo_93850_MPA_101_Amplifier.html

http://www.jamo.com/images/download/557.aspx



Later I'll post picks of the insides. It's a pretty neat looking unit:) I just don't have time to play with it now.

WOW! Sweet deal! At that price I would have picked 1/2 a doz :cool:

heiney9

I almost bought one of those off e-bay simply to use the case for my gainclone project. Have no idea how the Jamo unit sounds............but for $2, you can't beat that deal with a stick!

H9

ben62670

heiney9 wrote: »

I almost bought one of those off e-bay simply to use the case for my gainclone project. Have no idea how the Jamo unit sounds............but for $2, you can't beat that deal with a stick!

H9

Well before I tear it apart I am going to see if it works fine. If it does I may just use it. The PS is perfect for GC's. Also the amp stage is real clean on that uinit. If I get rid of all the XO stuff, and protection circuit it may sound good. I'll keep you posted. Actually if it sounds good I may stick a tube through the roof and have a neat little hybrid integrated amp:) If you get a chance to get one cheap the case is real nice on that unit.

danz1906

Congrats!

AudioGenics

neat....

ben62670

It works fine, and then it doesn't work. The SQ is kinda flat. I am not even going to toy with it. I am gutting it, and paralleling some gainclones in the case. Later I will add a tube buffer I built around Fred's design for the "amp deal of the century". I will have to make an adjustment for the 30v b+ and add a little 6.3v transformer for the heaters.