class d

Guidocorona
Have you heard the nuforce multichannel? I am looking for 3ch and talked to nuforce about 3 of the monos. They suggested the 7ch amp because it was less expensive that 3 monos and the SQ was the same.

More conversation with nuforce. They gave me directions to open the pre and move a jumper to cut the gain by 1/2. So I gave it a shot but when I opened it up it didnt really look like he picture. Turns out that the demo version i was sent has an old board without the jumper. But they offered to switch it out and if thatw as not enough of a reduction, the offered to add resistance if I wanted. Not bad from a service standpoint.

as a newcomer, I would submit that there is some value to reading the debate. I am curious about class D and seeing that there are vaired points of view cements my decision to bring a couple home for a listen. From a practical standpoint, class D holds some attraction for me. The idea of small, non heat producing powerplants is an appealing one. We shall see...

Guidocorona -

nuforce offers auditions via mail so that seems an easy place to start. I have the monos coming along with thier p-9 pre amp. My current amp is a mcintosh integrated and there is a jumper on the back that connects the pre to the power so I can pull that out and insert either the nuforce pre or the nuforce power or just run the nuforce combo together. Should keep me busy for a couple of weeks. But they will get sent back no matter what. This is only my first audition and there area few other things that I want to hear before I settle in.

G - will do!
I will ask about playing time. they are dedicated audition amps so hopefully they will have some time on them already.

I just got a p9 and a pair of v2se's from nuforce to listen to for a couple of weeks. The are demo samples and according to the company are plenty worn in. I was told to let them run for 20 hrs or so and they should be ready.
I snuck a quick listen to make sure that everything was working and didnt like what I heard. I wont bother to describe till I do what the rep suggested and give them a day.
Will post my 2cents once I have spent a little time with them. Very helpful company to deal with so far. I called the number on the web site, talked to someone for a while and they sent everything out. Pretty simple.

Thanks again. I talked to nuforce. Part of the issue is fixable, part is intentional. There is a jumper that I can close to cut the gain in half. But in their literature they talk about the gain being linear as opposed to other pre designs where the volume is more gradual. For me it comes down to a question of usability. I really like the ht pass, the extra pre out for my sub and the "cleanness" of the sound but I need more volume flexibility.

Guidocorona
any idea why they need to run for a while after travel? Not that I doubt it, just that I dont understand it. And you would think that the rep who sent them to me would want to show them in the best light and tell me to wait a week. But that wouldnt be the first time that a vendor said a component would sound optimal right out of the box either...
strange hobby.

guidocorona -
sounds more reasonable than anything i can come up with.
another question for you - I am using the p9 pre from nuforce with the amps right now and the usable volume range seems to be from "0" to "4" out of 70 or so steps. So there is very little usable volume control for me. Have I done something wrong? Is it a pre amp issue? My "reference" is a mac integrated and while I never get past 40% of the volume wheel, there is much more usable room to fine tune volume.
Thanks for all the help!

Guidocorona -
I let everything settle for a few days and the nuforce set up sounds much better. Is it possible for an amplifier to contribute to imaging? Becase that is the change that is most obvious as I moved over to the p9/SE combo away from my mcintosh. The image is so much more sharply defined.
I will be selling my integrated and picking up 2 (ideally 3)of the amps. Not sure about the pre though. Dont like all the popping and the volume control gets way too loud way too fast.
I think that you had writtne something somewhere about matching the impedance of the pre to the power amp. Can you explain that again so that I know what to look for in a pre to go with the nuforce's?
thx!

Tvad -
Thanks! New to all of this...
Is there somewhere I can go to reaserch the gain of different pre amps?

I had not looked at it from that angle, but can't really argue with you either. The p9 demo was not part of their usuall demo process though.
On their web site, they offer auditions for the monos. So I called the to arrange a demo. While on the phone, I asked about the p9. The guy said that they didn't have a demo program for it, but that he had one handy and wouldn't mind sending it along.
So I can give them a "pass" on not knowing that the pre wasn't current because they weren't planning on sending it out.
That says nothing about the rapid rate that they upgrade the amps.
I am really fond of the solidity of the imaging that I get from the pre/mono combo. Plus the pre suits my quirky functionality needs (ht bypass, balanced input and output) and they are cheap.
If anyone has an alternate to consider, let me know!

T
Sounds like this isn't the first problem you have heard about. Have there been others?

G -
That looks really nice.
Can I have $2000?

A little out of my range for now. I sold by integrated for 3300 and planned on spending 4500 on a pre/power for now. I found a pair of V2se's for 2600 so I have 2kish for a pre.
So there is the nuforce below that price and older conrad johnson and pass labs at that price and a calypso $1k over budget.
I want an ht pass and would prefer balanced. Thanks for your help. I know that I have gotten away from the original post.

G -
Yea - that might be it. Do you have any personal experience with jrdg pre's?

Thanks g. I looked at the threads.seems like there are some real fans out there. Also looks like the capri new is only priced a bit above the used ones on this site. Might just try and find a dealer to demo and buy new.
Thanks again for your input!