datape

Amplifier to drive NS10 Studio monitors
« on: March 01, 2006, 10:11:15 AM »
Can anyone help.  I have searched the forum with no reults. I wish to build an amplifier to drive a pair of Yamaha NS10 'Studio' speakers. It has to be a suitable match for these awkward beasts as the current monitoring solution (a Technics HiFi amp) is cack and most likely giving me flaws in my mixes.

I was wondering if using any of the amplifier stages from the Neve 1073 would give me good results. They seem to use standard transistors 2n3055 and it wouldnt be too hard too modify would it? A couple of whacking great output transformers? Any suggestions?
thanks
Dave


Amplifier to drive NS10 Studio monitors
« Reply #1 on: March 01, 2006, 10:41:52 AM »
Dave
Me and you keep bumping into each other
I have exactly the same requirement
If somebody  can come up with a Bryston board I am agame
In the meantime I have been looking at the "gainclones" - PCBs available on the web

Sleeper

Amplifier to drive NS10 Studio monitors
« Reply #2 on: March 01, 2006, 12:21:36 PM »
I've made a few gainclones. they are really good... I'm sure they'd drive ns-10s to fairly high levels... totally adequate.   You need a good source for transformers to make these work well, if you can dig up a big 150va or higher dual phase toroid that puts out around 30 volts per phase you should be in business.  if you can find an even bigger transformer you'll get even more out of the amps.  the casework is much harder than the actual project.


about that bryston
 :thumb:
I'd like to see something like this here.  Don't know much about power amp construction, but it would be nice to learn more.

kelly

Kev

Amplifier to drive NS10 Studio monitors
« Reply #3 on: March 01, 2006, 02:24:29 PM »
what there call Gain Clones is the Chip amp module
you should fine a few PCB's about
I think some of the locals here have them for sale

LM3886 isn't it ?
http://www.groupdiy.com/index.php?topic=34529&sid=e05aaa08a8a091dd6fb967f49ff79483

Mikkel has an LM3875
http://stiftsbogtrykkeriet.dk/~mcs/
and his newer pages
http://electronics.dantimax.dk/Kits/index.html


I have short write up on a very old faithful that had a re-work many years ago
http://www.diyfactory.com/projects/workhorseamp/workhorseamp.htm
Kev
DIY Factory

Svart

Amplifier to drive NS10 Studio monitors
« Reply #4 on: March 01, 2006, 04:50:25 PM »
I built gainclones for my monitors, work beautifully.

cheap too. I bought a kit which was like 50$ and made life very simple for myself.

i bought a toroid trafo off of ebay for 30$ with something like 300VA and that works great!

 :thumb:
Welcome to the GroupDIY leper colony! when something falls off, we just replace it with a tube!
occupation: General Electron Mayhem

Alesis X2 information repository:
http://www.theopiumdenproductions.

Sleeper

Amplifier to drive NS10 Studio monitors
« Reply #5 on: March 01, 2006, 06:06:51 PM »
here's the circuit I used, t-network IGC. works great
http://myweb.tiscali.co.uk/nuukspot/decdun/gainclonepre.html
lot's of info on the site too.

gtrmac

Mac Bowne
G-Clef Acoustics Ltd.
Osaka, Japan

datape

Amplifier to drive NS10 Studio monitors
« Reply #7 on: March 02, 2006, 01:36:39 PM »
nice links.... thanks for the info

the Hx200 that is linked is rated 200 Watts/RMS and the NS10M is rated 60 watts (PROGRAM), 120 watts (MAX)

http://www.yamahaproaudio.com/products/speakers/ns10m_studio/specifications.html

Is the higher output a good match?

Kev

Amplifier to drive NS10 Studio monitors
« Reply #8 on: March 02, 2006, 03:07:47 PM »
Quote from: "datape"
... Is the higher output a good match?

yes
and as always you have to operate your equipment and if the RMS levels get high you should lower the volume

The higher power capability is more about headroom and in particular
voltage headroom
than steady state RMS levels
Kev
DIY Factory

 

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