sr1200

Studio Monitor Power Amp
« on: January 06, 2013, 12:56:49 AM »
Yeah stop laughing i use passive speakers still... oh wait, im not on the GrrSlutz forum....  anywho... im in the market for a new power amp and it seems theres not a lot out there that meets the requirements.  (ala NO fan blowing a gale making tons of noise)

i Found this: https://www.hypexshop.com/ the UcD180ST would do a pair of those with one of their powersupplies... lookin around 220euro...
Also was looking at http://shop.emotiva.com/collections/amplifiers/products/xpa200 or http://shop.emotiva.com/collections/ultra-series/products/upa200

Anyone have any experience with either brand?
« Last Edit: January 06, 2013, 01:01:21 AM by sr1200 »
MEI Studio - Long Island, NY: http://www.meirecords.com


sr1200

Re: Studio Monitor Power Amp
« Reply #1 on: January 06, 2013, 01:20:19 AM »
if you scroll down quite a ways... theres a schematic for a tube amp thats supposedly based on the mcintosh C22 design (which im not familiar with, just familiar with the name)  Anyone familiar with the original?  probably could make my own board doesnt look horribly complicated.
http://www.ebay.com/itm/Tube-Pre-Amplifier-Kit-Based-on-McIntosh-C22-S2-Stereo-/320630279177?pt=US_Home_Audio_Amplifiers_Preamps&hash=item4aa70dcc09
MEI Studio - Long Island, NY: http://www.meirecords.com

druu

Re: Studio Monitor Power Amp
« Reply #2 on: January 06, 2013, 04:14:26 AM »
I built a 2x UcD180HG amp for my new speakers. Great amps and very reliable.

http://www.gearslutz.com/board/8448367-post69.html

druu

Re: Studio Monitor Power Amp
« Reply #3 on: January 06, 2013, 04:15:52 AM »
Oh it was a sub $500 build too!

sr1200

Re: Studio Monitor Power Amp
« Reply #4 on: January 06, 2013, 11:32:30 AM »
Druu thanks for the response!  Nice pics!  Are they pretty clear/detailed?  And whered ya get that case, its gorgeous!!
MEI Studio - Long Island, NY: http://www.meirecords.com

JohnRoberts

Re: Studio Monitor Power Amp
« Reply #5 on: January 06, 2013, 12:09:49 PM »
Hypex are designed by Bruno Putzey a highly regarded design engineer. I expect they would be clean and neutral sounding (a good thing).

JR
Don't only half-ass tune your drums. Visit https://circularscience.com to hear what properly "cleared" drums sound like.

erikb1971

Re: Studio Monitor Power Amp
« Reply #6 on: January 06, 2013, 12:57:57 PM »
I have used Hypex plate amps for 3 subs I build, and they are definitely very well sounding and build!
« Last Edit: January 06, 2013, 01:21:42 PM by erikb1971 »
We are getting way past relatively easy

sr1200

Re: Studio Monitor Power Amp
« Reply #7 on: January 06, 2013, 01:10:55 PM »
Awesome! Thanks everyone for the feedback, looks like im gonna have a new project :) :)
MEI Studio - Long Island, NY: http://www.meirecords.com

kante1603

Re: Studio Monitor Power Amp
« Reply #8 on: January 06, 2013, 01:57:33 PM »
And whered ya get that case, its gorgeous!!
Case looks like it is from modushop,italy:

http://www.modushop.biz/

Cheers,

Udo.

druu

Re: Studio Monitor Power Amp
« Reply #9 on: January 06, 2013, 05:19:19 PM »
Actually, chassis was from China:

http://m.aliexpress.com/item/621182900.html

Quality casing with huge heat sinks and thick front panel. :) Oh and very cheap!


druu

Re: Studio Monitor Power Amp
« Reply #10 on: January 06, 2013, 05:22:07 PM »
Btw I wouldn't recommend that case for anything other than two UcD180 modules, it's a tight fit but perfect for 2x 180's and linear PSU.

sr1200

Re: Studio Monitor Power Amp
« Reply #11 on: January 06, 2013, 06:41:13 PM »
The link Udo gave looks real similar and its a 19" 2U which would fit perfectly into the existing "hole" so to speak.  Decisions decisions... lol  Thanks for all the input
MEI Studio - Long Island, NY: http://www.meirecords.com

alexc

Re: Studio Monitor Power Amp
« Reply #12 on: January 06, 2013, 08:11:18 PM »
Does anyone have an opinion on the use of some of the 'chip amps' Gain Clone style for usage as studio monitors?

And in comparison with discrete implementations Hypex style?

I was thinking of making a pair of units, each with 2 channels, one for high and one for low.
Balanced inputs to be fed with a commercial active crossover.
Maybe 50W each hi and low. Not needing massive power or subs for my purpose.
Feeding some Tannoy concentric 8 monitors.

My main amp usage so far has been in non biamped 

i) good quality 70s discrete hifi  ii) big fan cooled bipolar discrete  iii) diy tube 30W traffo bal input

I liked the tube diy amps so much they stayed in the lounge room.   ;D

So I need some more amps !



 
« Last Edit: January 06, 2013, 08:58:58 PM by alexc »
I ping therefore I am

Peterson Goodwyn

Re: Studio Monitor Power Amp
« Reply #13 on: January 06, 2013, 09:03:42 PM »
Alex, I'm in the process of building an amp from the LM1875 datasheet as we speak: http://www.ti.com/product/lm1875

I'll let you know how it sounds against my Adcom 535

alexc

Re: Studio Monitor Power Amp
« Reply #14 on: January 06, 2013, 10:26:23 PM »
Thanks! I thought about the Adcom - has been well recommended for cost effective high-qual studio monitoring.
Haven't been able to determin if the Adcom line it takes 240vac or thereabouts.

Happy to hear your thoughts on the chip amp for 'our thing' :)
I ping therefore I am

justanalogue

Re: Studio Monitor Power Amp
« Reply #15 on: January 20, 2013, 11:15:30 AM »
Another thumps up for Hypex!
Use the UcD 400 HG's with my old B&W 802-80's at home, lovely combination.
You have to get used on the totally flat bass response, no harmonic tricks involved.

Willem.

ruairioflaherty

Re: Studio Monitor Power Amp
« Reply #16 on: January 21, 2013, 05:23:39 AM »
You have to get used on the totally flat bass response, no harmonic tricks involved.

This! It can feel a little underwhelming at first until you realize that it's actually what the music really sounds like...

sr1200

Re: Studio Monitor Power Amp
« Reply #17 on: January 21, 2013, 01:35:42 PM »
Thats fine by me, Ive been using an RTA to "flatten" my response for years.  So shouldnt be much of a learning curve there.  I just want something that is going to work well.  The last 2 amps ive used have had...."issues" lol.
MEI Studio - Long Island, NY: http://www.meirecords.com

druu

Re: Studio Monitor Power Amp
« Reply #18 on: January 21, 2013, 09:02:39 PM »
Two months on and with daily use I haven't seen any issues whatsoever with my amp. We've had full weeks of 38C+ temperatures here in Australia and I don't have AC in the studio either but no overheating issues. :) The studio is always in the dark though so doesn't get too warm.

I'm curious about the HxR modules now.. Anyone use them? Any noticeable benefits?

justanalogue

Re: Studio Monitor Power Amp
« Reply #19 on: January 22, 2013, 06:37:17 AM »
Two months on and with daily use I haven't seen any issues whatsoever with my amp. We've had full weeks of 38C+ temperatures here in Australia and I don't have AC in the studio either but no overheating issues. :) The studio is always in the dark though so doesn't get too warm.

I'm curious about the HxR modules now.. Anyone use them? Any noticeable benefits?

Mine has those but can't compare, just bought the best I could afford, think they have something to do with shunt regulation.

Willem.


 

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