Page 1 of 1

Wanted reliable monitor amp

Posted: Sat Dec 30, 2017 11:39 am
by filamentopen
Does anyone know of a workhorse monitor amp??. Thanks!

Re: Wanted reliable monitor amp

Posted: Sat Dec 30, 2017 12:57 pm
by TPT
Comes down to $$$.

I've been buying the Chinese made Crowns recently. The "300 watt" is only $230 on Amazon. So far they seem to be working OK.

Re: Wanted reliable monitor amp

Posted: Sat Dec 30, 2017 3:40 pm
by fm-engineer
We've had good luck with the ART SLA-1 amps in our remaining analog studios. About $200 from BSW. For all new AOIP studios, we are using powered monitors, KRK or Genelec. In my opinion, powered monitors are they way to go.

Re: Wanted reliable monitor amp

Posted: Sat Dec 30, 2017 5:07 pm
by kkiddkkidd
fm-engineer wrote:
Sat Dec 30, 2017 3:40 pm
We've had good luck with the ART SLA-1 amps in our remaining analog studios. About $200 from BSW. For all new AOIP studios, we are using powered monitors, KRK or Genelec. In my opinion, powered monitors are they way to go.
I concur. And they are very reasonably priced unless you are looking for ridiculous specs.

The last 2 or 3 studios that I have built used Behringer & M-Audio powered speakers and they are all still chugging along.

Getting power to the speaker location is the only problem but as long as you plan for it in your initial plans that isn't a biggie.

Regards,

Re: Wanted reliable monitor amp

Posted: Sun Dec 31, 2017 7:26 am
by kcbooboo
The Crown D-75 or D-75A amps can be found cheap. Once you replace the two 10V zeners that short out, the two 820 or 910 ohm 2w resistors that then burn up and damage the board, the NE-2H power lamp that dies (causing that "doesn't power up" syndrome), and a couple of electrolytic caps on the main board, they can last another 20 years. They're quiet, they have good specs, and they just run and run and run. I've fixed nearly 10 of them.

Bob M.

Re: Wanted reliable monitor amp

Posted: Sun Dec 31, 2017 7:56 am
by TPT
Interesting...have a D-75 I'll take a second look at. As I remember, it didn't quit but got noisy.

One I can't recommend is the Alesis RA-150. Have two sitting in the equipment mortuary--both lost one channel of the amp.

Re: Wanted reliable monitor amp

Posted: Sun Dec 31, 2017 8:56 am
by w9wi
I had one D-75 that came from the factory wired for 240 volts, despite the captive ordinary USA 120v power cord.

It worked fine for years. We only found out when we tried to tap DC power for a preamp & couldn't figure out why both power rails read half what the manual said they should.

I suppose if we were a recording studio instead of a TV control room, we might have noticed earlier:)

Re: Wanted reliable monitor amp

Posted: Sun Dec 31, 2017 9:17 am
by Dale H. Cook
kcbooboo wrote:
Sun Dec 31, 2017 7:26 am
The Crown D-75 or D-75A amps can be found cheap. Once you replace ...
I concur with Bob. At the moment I have one third in line in the shop queue for a customer.

Re: Wanted reliable monitor amp

Posted: Sun Dec 31, 2017 1:11 pm
by Bill DeFelice
fm-engineer wrote:
Sat Dec 30, 2017 3:40 pm
We've had good luck with the ART SLA-1 amps in our remaining analog studios. About $200 from BSW. For all new AOIP studios, we are using powered monitors, KRK or Genelec. In my opinion, powered monitors are they way to go.
I concur on the ART SLA-1 amp as I have two for my personal studios. Have had them for 10 years and two studio moves and they're still cranking.

As far as powered monitors go I myself am starting to venture into that territory myself. I picked up a pair of Yamaha HS5 monitors. Not my first choice but the price was right as a tradeout for a Radio Systems audio d.a. did the trick.

Re: Wanted reliable monitor amp

Posted: Mon Jan 01, 2018 9:56 pm
by Lee_Wheeler
TPT wrote:
Sun Dec 31, 2017 7:56 am
Interesting...have a D-75 I'll take a second look at. As I remember, it didn't quit but got noisy.

One I can't recommend is the Alesis RA-150. Have two sitting in the equipment mortuary--both lost one channel of the amp.
The pots are terrible and they tend to get real noisy or have a channel just drop out. You can still get the replacement pots from Full Compass and they are only a few dollars each (the replacements are the stepped version but they replace the non stepped pots just fine). I shotgunned all of the pots on the D75s in the studios last year and they still work as good as new.

...Lee

Re: Wanted reliable monitor amp

Posted: Thu Jan 04, 2018 2:08 pm
by BigRed
I'm partial to these guys.

http://www.audiopowerlabs.com/833tnt-mo ... amplifier/

They're a tad expensive (around $170,000/pair, I think) but that comes out of capital. And I've got "spares" on the shelf for the old BC-1G, so there's that.

($170,000, $170,000 for, basically, the modulator sections from two old Gates 1-kW AM transmitters? And I used to take those old 833A duds out back and use them as targets for the old .22. Who would have thunk?)

Re: Wanted reliable monitor amp

Posted: Fri Jan 05, 2018 8:53 am
by Kent T
For most monitor amp needs in a station,

Crown D 75A (get a USA built one if possible, those were real Crown all the way)

If you can afford ,

McIntosh MC 250, MC 2505-2, or MC 2100 or MC 2105. The best.