Proton Amp any thoughts?

hogsfly

I just purchased some proton seprates this wekend and would like some input as to quality and specs. Have not found alot on the net.I paided 500.00 for 3 pieces D1200 amp,1100 preamp,and a 440 tuner all working and in very nice shape.Any input will be great

ESavinon

Great deal. The d1200 is a great amp. Very similar to the NAD 2200PE.
Here's a link for more info:
http://www.hifiengine.com/manuals/proton/d-1200.shtml

billbillw

Proton was one of the original OEM manufacturers for NAD. Proton took NADs designs and tweaked them and sold them as their own. So, the early 80's stuff is very similar. I think this annoyed NAD and they parted ways in the late 80's when NAD found a Japanese OEM to make their stuff. Many people believe that the Proton gear is actually better than NAD because they used somewhat better components inside. Overall, its pretty good stuff. I was looking for a Proton D940 receiver for quite some time, but I ended up getting my NAD 7175PE instead.

mewisemagic

always wanted a 1200 or 1150,but never can catch one on ebay. i have 2 d540's int. amps.i like mine

Conradicles

Bump for more thoughts?

mewisemagic

well,i like the 1150 and 1200 but can't find any and really don't won't to go the ebay route. are you looking for one?

Conradicles

Not really now, just never new they really existed. They look cool and just wanted to learn a little more about them. The design looks great.

Danny Tse

billbillw wrote: »

Proton was one of the original OEM manufacturers for NAD. Proton took NADs designs and tweaked them and sold them as their own. So, the early 80's stuff is very similar. I think this annoyed NAD and they parted ways in the late 80's when NAD found a Japanese OEM to make their stuff.

Onkyo OEM'd for NAD in the late 80s and early 90s. Their components actually look quite similar during this period of time. I don't think Onkyo OEM for anyone after that.

944turbo

Hey Hogsfly, if you ever want to sell that Proton P1100 Preamp let me know. I have been trying to find one or even a higher model number but they are few and far between. Anybody that has one or knows someone that does let me know. Thanks everybody.

ken99

Here is a link to more info on the Proton D1200, including pics.

http://www.audiocircuit.com/Home-Audio/Proton/D-1200

ken99

ken99

The Proton d1200 uses eight (8) 3/4" 7V fuse lamps for the meters.

LED replacement bulbs can be purchased (in green or blue) by contacting:

Don Haywood
deh12110@yahoo.com

Bulbs are guaranteed for life and are made for the Proton D1200.

Don is very honest. I purchased from him on 2 occassions and had no trouble. You can trust him.

The original bulbs for the D-1200 are green. You will need 8 replacement bulbs for each amplifier. 4 per meter.

ken99

classic carl

I use a Proton AA-1150 in my main system. It is one of the most musical amps I've ever heard. A local tech has several of the D-1200 amps in his system and has told me that he thinks the AA-1150 is more musical than the D-1200. I've attached a review by Julian Hirsch from the June, 1988 issue of Stereo Review. Mr. Hirsch raves about the AA-1150.

I also have a Proton AP-1000 preamp that I use in another system.

Proton AA-1150_review.pdf

jerrys_

Please could someone send a PDF of the PROTON AA-1150 amplifier product manual. Anything and everything you may have on it would be greatly appreciated.



Thank you so much!
Jerry

classic carl

I don't have a manual. What do you need to know? It's pretty simple. You turn it on or off. That's pretty much all there is to it.

classic carl

By the way, welcome to the POLK Forum.

jerrys_

I have friend that has just purchased 2 of these units DOA. I'm trying to help him and at the same time like to get a copy for me should my unit fail.



Thanks!

dscheer

Great Amps...I had a pair of D1200 Amps, purchased 1985. Bridgeable and nice to look at with those 2 ea watt meters lite up.
They could really handle low imp, once in a while the relays would shut em down. but great Amps. Both got stolen while we had stuff in a storage space while we moved from Tracy, Ca to Reno. All my audio gear was gone. Very Sad Day for sure. Enjoy you Proton Gear, Very well made.
Regards: Don Scheer

jerrys_

Sorry for your loss dscheer,

If your looking for good one, of the best sounding solid state amp, I recommend this AA-1150. A friend and I looked into something in it's today quality and found prices between $700-$800 and they weren't even dual mono amps. I did test it with a sign wave generate long time ago, it's 50WPC RMS all right. Power would drop off after driven outputs over the 50WPC, after a few seconds it always recovered shortly after tuning down the volume. Like the review test show, the caps will discharge under continues over 50WPC RMS Power and shortly recharge when amp is turned down. But in music mode they do not completely discharge, more like an amp with 200+WPC, and continues dynamics around 400+WPC @ 4ohms. I don't know about the sound quality of Proton's Preamp, I drive mine with a Marantz derived tube preamp I bought new from Parts Express in the 90's, very good match. Not to soft like some all tube systems, and a little warmer than the best of sold state preamps.

classic carl

jerrys_ wrote: »

I have friend that has just purchased 2 of these units DOA. I'm trying to help him and at the same time like to get a copy for me should my unit fail.
Thanks!

I've never seen an owner's manual for the AA-1150, so I don't know if it includes a schematic. You might be better off with a service manual if you can find one. Good luck with your quest.