Nord One Up Ncore NC500 amps, Class D ready for prime time .....

**Jack** · May 15, 2016, 05:48 PM

Unless I have missed something over the last three years Mike B. does not have the equipment to test input boards which is all that Mike/Blizzard has built. He is using off the shelf Ncore 500 modules and power supplies just like Merrill, Bel Canto, Astah and others. The differences occur with the input board implementation just like with the various ICE based amps.

Whether Mike buys his own set of Nords or just borrows Jerry's after they break-in he can form his own opinion in his two systems. I had Joe's in my two systems for several weeks and they are very good amps in their price category. Are they SOTA no, but very good amps just the same.

**Mike** · May 15, 2016, 05:59 PM

The voice of reason. Agreed Jack. In that $1600 price point, sure, give them a listen. But for me, the JOB225 is still my "holy crap I can't believe it's so cheap" amp.

Sent from my iPhone using Tapatalk

**a.wayne** · May 15, 2016, 06:10 PM

Originally Posted by Jack

Unless I have missed something over the last three years Mike B. does not have the equipment to test input boards which is all that Mike/Blizzard has built. He is using off the shelf Ncore 500 modules and power supplies just like Merrill, Bel Canto, Astah and others. The differences occur with the input board implementation just like with the various ICE based amps.

Whether Mike buys his own set of Nords or just borrows Jerry's after they break-in he can form his own opinion in his two systems. I had Joe's in my two systems for several weeks and they are very good amps in their price category. Are they SOTA no, but very good amps just the same.

Jack, I had suggested to Mike to send his modded amps to Mike B. for evaluation , nothing about bench testing boards and Class-D Mike is suggesting they are SOTA and superior to most...

Did the ones you listened to have Mike's input boards ... ?

**Mivera Audio** · May 15, 2016, 06:43 PM

Originally Posted by a.wayne

I remember suggesting you take the amps and mod them to your specification , so we could at least hear what you are so excited about ..

No I will measure them and see if there's any flaws with the boards.

**Mivera Audio** · May 15, 2016, 06:44 PM

Originally Posted by Jack

Unless I have missed something over the last three years Mike B. does not have the equipment to test input boards which is all that Mike/Blizzard has built. He is using off the shelf Ncore 500 modules and power supplies just like Merrill, Bel Canto, Astah and others. The differences occur with the input board implementation just like with the various ICE based amps.

Whether Mike buys his own set of Nords or just borrows Jerry's after they break-in he can form his own opinion in his two systems. I had Joe's in my two systems for several weeks and they are very good amps in their price category. Are they SOTA no, but very good amps just the same.

Keep in mind that Joe has the old boards that have been revised since. I will be the first to say they are mediocre at best

**Mivera Audio** · May 15, 2016, 06:45 PM

Originally Posted by Mike

The voice of reason. Agreed Jack. In that $1600 price point, sure, give them a listen. But for me, the JOB225 is still my "holy crap I can't believe it's so cheap" amp.

Sent from my iPhone using Tapatalk

What input boards did you order with yours?

**audio.bill** · May 15, 2016, 07:03 PM

Originally Posted by Mivera Audio

Keep in mind that Joe has the old boards that have been revised since. I will be the first to say they are mediocre at best

Yet aren't these the exact same amps and boards that you so highly touted and recommended to Joe just a short time ago? How quickly things change!

**nc42acc** · May 15, 2016, 07:11 PM

I have the very latest boards in my Nords and they are mediocre at best compared to the NC400.

Originally Posted by audio.bill

Yet aren't these the exact same amps and boards that you so highly touted and recommended to Joe just a short time ago? How quickly things change!

**Anatta** · May 15, 2016, 07:31 PM

A good old but still relevant article.

https://www.audioholics.com/audio-am...one-amplifiers

**Jack** · May 15, 2016, 07:36 PM

a.wayne

The ones I listened to were using the Nord Rev B board and the Sparkos Op Amps. They were a better match to my ears with the KO's than with the Spatial's. I also own the Job 225 and have for well over two years. It has not been in rotation for over a year. When I bought it, it was a great match with the Vandersteen 2CE Sigs, but when I switched to the Treo not so good. The Treo was a much more difficult load both sensitivity and impedance wise and the Job seemed uncomfortable. On the other hand the Odyssey Kismet handled the Treo's with ease. I guess I need to give the Job another listen and see how it works with the Nola's. Another issue with the Job is it's input sensitivity of .75 volts. I prefer to use tube preamps with SS amps and with the Job the only option I had that would work was the W4S STP-SE. Now that I have the Rothwell attenuators I will give it another try with the Modwright and Sonic Frontier preamps.

**Mivera Audio** · May 15, 2016, 07:44 PM

Originally Posted by audio.bill

Yet aren't these the exact same amps and boards that you so highly touted and recommended to Joe just a short time ago? How quickly things change!

I came up the the concept, not the circuit design. As I have explained in detail, once I finally tested them, I wasn't impressed. They weren't like the boards I built.

**Mivera Audio** · May 15, 2016, 07:46 PM

Originally Posted by nc42acc

I have the very latest boards in my Nords and they are mediocre at best compared to the NC400.

That's why I think there's something wrong. Until they are tested, you'll never know. Everyone else has had a completely different experience.

**Mivera Audio** · May 15, 2016, 08:07 PM

Originally Posted by nc42acc

I have the very latest boards in my Nords and they are mediocre at best compared to the NC400.

So what did Colin say? He must have said something about them. I can't see why he can't ship you the Hypex designed OEM boards to try. They are the exact same circuit that is used on the NC1200's.

**nc42acc** · May 15, 2016, 08:12 PM

He he told me to let them break in more.

Originally Posted by Mivera Audio

So what did Colin say? He must have said something about them. I can't see why he can't ship you the Hypex designed OEM boards to try. They are the exact same circuit that is used on the NC1200's.

**Mivera Audio** · May 15, 2016, 08:17 PM

Originally Posted by nc42acc

He he told me to let them break in more.

Well until I hear them for myself, there's not much I can comment on. Richards circuit design worked great for me. However I used different resistors, caps and board layout. I thought the help I provided Colin was enough. I wasn't about to build the boards for him as well. Either way hold tight, he's either gonna have to find a solution. If he can't do it, I'll send you proper boards myself. But if we have to resort to that, it won't be good for business on Colin's end.

**Randy Myers** · May 15, 2016, 08:41 PM

Again, sounding a tad like stability issues... just saying... and yes I know I am the noob here, but I really am not, just in amp circuits. Built a ton of kit amps back in the day and have been inside of equipment, especially computers, since the mid 70's... again just saying....

BTW- I put the Job up against the ST-500 mkII. In some ways I liked the Job, but in many more I preferred the Wyred 4 Sound... I sold the Job and keep the ST-500 mkII... again just saying....

**joeinid** · May 15, 2016, 11:14 PM

Just for the record, my Nord One Up amps with the Sparkos op amps are stellar. Given the cost of admission, they are a steal. I gave mine several weeks of break in before I even listened critically. I shipped them to 2 other forum members who loved them as well. Sure, not every speaker or system will be compatible but it's the same with Class A, AB, or yes, Class D.

Class D in general needs a lot of break in, look at Rowland for example or even Magico speakers. Upwards of 600 hours or more to open up and sound great.

**MikeCh** · May 15, 2016, 11:22 PM

Originally Posted by joeinid

Just for the record, my Nord One Up amps with the Sparkos op amps are stellar. Given the cost of admission, they are a steal. I gave mine several weeks of break in before I even listened critically. I shipped them to 2 other forum members who loved them as well. Sure, not every speaker or system will be compatible but it's the same with Class A, AB, or D.

Agreed Joe!

I'm at 200 hours with signal input on my pair of Nords with Rev C board and SI op amps. Mine are dynamic, smooth, full range and detailed at all volume levels. Great value for the exceptional sound I'm receiving.

**Randy Myers** · May 16, 2016, 01:07 AM

I totally agree on break in time on class D amps. Even in the Wyred manual it states 300 hours. EJ told me to give the amplifier 500+ hours. I think I am at somewhere near 300 hours now. At about 250 hours I was able to make my decision to stick with the W4S amplifier.

Initially the amplifier was quite bright and rather harsh. This was expected because the Wyred pre-amp and DAC displayed exactly the same thing out of the box. But it smoothed out after about 200 hours and is still getting better each day. After about 150-200 hours it was obvious that the separation and sound stage were not anomalies, but instead a true characteristic of the amplifier. In this regards it just keep getting better...

I can say without reservation, the only amplifier pre-amp setup I have ever heard that displayed a better sound stage was the incredible MBL system that one of our club members has.

**boggit** · May 16, 2016, 08:52 AM

Originally Posted by nc42acc

He he told me to let them break in more.

Hi Marty
Sorry to hear you have concerns re the sound could I suggest you give me a shout probably best to have a telephone conversation. Could you also confirm you have Rev C boards please. As at the time of your order we were shipping modded Rev B boards. Any way these were the emails just for clarification.
Colin

Received the amps, great packaging. They sound tremendous but I am wondering do your boards allow me to swap the op amps? I am going for something a little less recessed in the midrange. Thanks
Marty

Hi Marty
Good news, I would wait a while for them to settle in. You also probably need to get used to more bass?
Yes you can swap op amps just make sure pin 1 goes to the indent. Be gentle with the 994 and pull from the lower board. But as I said they will open out a little.
Regards Colin

Compared to my NC400 the midrange is recessed. Is this a trait of the 994?

I was kind of waiting for more feedback giving time to open up or indeed get used to the new sound. I can only react if I know. Anyway if you have modded Rev B boards I would be happy to ship some new Rev C boards FOC.

As you can see from lots of other customer feedback they like the amps. We go out of our way to help and support customers and that's not just customer service talk!
I look forward to hear from you. Colin

**joeinid** · May 16, 2016, 08:56 AM

Welcome Colin. Thank you so much for joining.

**nc42acc** · May 16, 2016, 09:22 AM

Colin
Thanks for your reply. The issue is, as the Nords had MORE break in time the midrange became more and more reticent. Doing comparisons with the NC400 and the Nords using not only my VR5 but the Pulsars and LS50 it was apparent with all speakers I tried. It was as if certain cues and passages had been blurred out listening to the Nords. Also with the VR5 using the Nords there is LESS bass than the NC400. Mind you I also have a ARC REF75, Parasound A21, and a pair of very special hybrid mono amps that I have as comparison. I can check this evening and find out what revision boards I have.

Originally Posted by boggit

Hi Marty
Sorry to hear you have concerns re the sound could I suggest you give me a shout probably best to have a telephone conversation. Could you also confirm you have Rev C boards please. As at the time of your order we were shipping modded Rev B boards. Any way these were the emails just for clarification.
Colin

Received the amps, great packaging. They sound tremendous but I am wondering do your boards allow me to swap the op amps? I am going for something a little less recessed in the midrange. Thanks
Marty

Hi Marty
Good news, I would wait a while for them to settle in. You also probably need to get used to more bass?
Yes you can swap op amps just make sure pin 1 goes to the indent. Be gentle with the 994 and pull from the lower board. But as I said they will open out a little.
Regards Colin

Compared to my NC400 the midrange is recessed. Is this a trait of the 994?

I was kind of waiting for more feedback giving time to open up or indeed get used to the new sound. I can only react if I know. Anyway if you have modded Rev B boards I would be happy to ship some new Rev C boards FOC.

As you can see from lots of other customer feedback they like the amps. We go out of our way to help and support customers and that's not just customer service talk!
I look forward to hear from you. Colin

**KLH007** · May 16, 2016, 12:18 PM

Burson adds another option for OP amp rolling; http://www.monoandstereo.com/2016/05...p-new.html?m=1

**boggit** · May 16, 2016, 01:49 PM

[QUOTE=KLH007;170654]Burson adds another option for OP amp rolling;
As good as the Burson V5 might be I would not recommend them in my application. They sound thin compared with the Sonic Imagery 994, the Sparkos is better but not as good as the 994 the Imaging is particularly superb. I'm sure they are excellent in other applications and its something I'm going to discuss with Burson to ascertain why.

**KLH007** · May 16, 2016, 05:19 PM

Colin, The link is to an improved V5i, not the plain V5, it might address the concerns you have?

**nc42acc** · May 16, 2016, 05:28 PM

**boggit** · May 16, 2016, 06:37 PM

OK these are as I thought modded Rev B boards, ill get you some new Rev C boards shipped by the end of the week. (waiting for Sparkos V Regs due Wednesday)

**boggit** · May 16, 2016, 06:46 PM

Originally Posted by KLH007

Burson adds another option for OP amp rolling;

Oh yes a new device looks interesting thanks for clarifying. They are very good to deal with and the product is superbly presented.

**nc42acc** · May 16, 2016, 07:10 PM

Colin I will gladly return these when they arrive. Thanks.

Originally Posted by boggit

OK these are as I thought modded Rev B boards, ill get you some new Rev C boards shipped by the end of the week. (waiting for Sparkos V Regs due Wednesday)

**a.wayne** · May 16, 2016, 07:15 PM

This is Good news , cant wait to hear the difference they make ....

**PeteG** · May 16, 2016, 08:07 PM

Yes good news, I was on the fence with this one so I will wait and see. Don't want to take a step back from my Ncore NC400.

**jalejos** · May 18, 2016, 05:49 PM

Received the new pcb. I will shortly measurements.

**tane0019** · May 19, 2016, 12:08 AM

Hi "jalejos",
The EPM2 shown at your website, suppose it is for a stereo set of NC500(2x) & SMPS1200(2x) ?
Does it also include the mentioned buffer board ?

**jalejos** · May 19, 2016, 04:14 AM

The EPM2 shown at my web is the standard stereo version (2xNC500 + 1xSMPS1200 + standard buffer Hypex)
Optionally the mentioned buffer and a second power supply.

**tane0019** · May 19, 2016, 06:05 AM

TQ jalejos.

BTW, how much will it cost me to get a unit of EPM2 with dual mono NC500+SMPS1200 + using the latest buffer+SI994 ?

Also, can't help but notice that you have EPM3 which is actually a NC400+SMPS600, correct ?

**jalejos** · May 19, 2016, 06:39 AM

You have a pm.

The model EPM3M is 1xNC400 + 1xSMPS600

**tane0019** · May 19, 2016, 10:09 AM

Thank again Jesus.

The machined casing sure look very nice+sexy - and that should be why the different in $$ between yours & Nord One by Colin.

Now waiting eagerly on the comparison between the NC400 vs the NC500 with the new SI opamp.
That will determine if I'm to shift away from my DIY NC400- or not

**jalejos** · May 19, 2016, 10:48 AM

Thanks to you. The chassis design is what makes the product expensive.

**boggit** · May 19, 2016, 11:04 AM

Originally Posted by tane0019

Thank again Jesus.

The machined casing sure look very nice+sexy - and that should be why the different in $$ between yours & Nord One by Colin.

Now waiting eagerly on the comparison between the NC400 vs the NC500 with the new SI opamp.
That will determine if I'm to shift away from my DIY NC400- or not

Hi tane0019
Don't forget the NC400 & NC500 are very similar products at similar prices aimed at DIY and OEM markets. Whilst I believe the NC500 is very similar in standard form. In UP form tunable, warmer, more organic, with better 3D soundstage with the SI994 buffer fitted. Its a much smaller improvement probably from what you upgraded the NC400 for.
The upgrade decision might also be influenced by what you could get for your NC400 amp.
I was toying with the idea of having a unit that can be sent from one potential customer to another there in the states so folks can try a NC500 unit let me know what you think.

I received this email from a guy in India who recently upgraded to the Rev C and SI 994 he previously had built UcD400HG amps and was going to build a NC400 amp for his PMC MB2se.
The amp is running perfectly fine.
The midrange is absolutely stunning. Vocals really shine.
I would say the amp sounds very organic. And gives up on a little bit of the high frequency details to create that warm and focussed sound from the center with the soundstage feeling slightly less exaggerated.
Cheers,
Ronnie

**joeinid** · May 19, 2016, 01:35 PM

Colin,

Thank you so much for sending the new boards and 994's. I can't wait to get them installed and running. I'll update when that happens.

I sent my current amps to a few members here on the forum who were so impressed that they ordered their own amps. I hope to see more orders coming in for you because I believe you make a superb product. It let's those of us who are either financially constrained or don't want to spend a fortune to be able to taste the higher end of audio. These play well above their price point and can't wait to hear the new iteration.

**boggit** · May 19, 2016, 03:00 PM

Pleasure, we have spent a fortune on subsidizing existing customers to upgrade to the Rev C board to enable the use of the superb SI 994's wanting our customers to have the best possible sound available. We hope it pays off in terms of glowing reports and additional sales. I partly do this for the passion of the sound and we realise we must go the extra mile as young company the fact we have low overheads helps. Enjoy your new sound. I'm enjoying the superb USA born Eilen Jewell as I type would love to see her live if she ever comes over this side of the pond. Colin

**Devg** · May 19, 2016, 11:50 PM

Originally Posted by joeinid

Colin,

Thank you so much for sending the new boards and 994's. I can't wait to get them installed and running. I'll update when that happens.

I sent my current amps to a few members here on the forum who were so impressed that they ordered their own amps. I hope to see more orders coming in for you because I believe you make a superb product. It let's those of us who are either financially constrained or don't want to spend a fortune to be able to taste the higher end of audio. These play well above their price point and can't wait to hear the new iteration.

Joe, could you post some impression on the Nords and how does it compare with other amps you tried. I am really interested in getting a pair myself with 994 but wish I could hear one before buying.

**joeinid** · May 20, 2016, 12:49 AM

Hi Devg,

I hope to receive the new boards and 994 op amps by Wed. next week. I hope to install them that night and get them cooking. Right now I have the original boards with the Sparkos op amps which are Class A and add warmth to the sound. They really are wonderful but please keep in mind that Class D amps in general take several hundred hours to break in. You can NOT judge them straight out of the box. I still think my amps are improving. AND you need to leave them on all the time in my book. I will post more opinion soon because I want to put these back on my speakers before the new parts come next week.

Originally Posted by Devg

Joe, could you post some impression on the Nords and how does it compare with other amps you tried. I am really interested in getting a pair myself with 994 but wish I could hear one before buying.

**joeinid** · May 20, 2016, 01:43 AM

Devg,

A few quick notes about the Nords with the Sparkos op amps...

The amps are dead quiet. The sound is smooth with a tremendous bottom end. There's a warmth to the sound with a reach out and touch you presentation. The music flows easily into the room and vocals are right there, front and center.

The majority of my listening is late at night. The music can be clearly heard even at whisper levels and I don't get the feeling something is missing.

I have to admit that as the hours roll up, I actually am getting more 3D to the sound. Depth of sound stage is increasing and is better than typical solid state but not like good tube amps. Let's face it, tubes can do some unique things, but these Nords do a lot of things tubes can't, touché.

As I write this, I have no tubes in my system (meaning preamp or DAC). One forum friend who borrowed my amps highly recommended a tube preamp, at least to lend some of that tube magic to the system. I plan on changing that at some point and will let you and everyone know what that does to the sound.

You, the collective you, are crazy not to consider these. If not for an affordable main system, then at least another system somewhere in the home.

Adding a decent tube preamp or especially a Lampizator will be killer, I guarantee.

**Devg** · May 20, 2016, 03:21 AM

Joe,

Thanks very much for the details response. Appreciate it. I use a Cary SLP-05 and prefer a solid state amp. Currently using a Pass X250.5 and hope that the Nords will be a step up ?

**joeinid** · May 20, 2016, 03:36 AM

Hmmmm, I did have a Pass X250 many moons ago. I don't remember its sonic signature so much anymore but do remember enjoying the amp. I'd most likely take Pass Class A above most amps but then heat and weight come into play in the equation, let alone price.

The new boards and op amps could change the outcome. I don't know. Plus personal preference would trump all else.

Originally Posted by Devg

Joe,

Thanks very much for the details response. Appreciate it. I use a Cary SLP-05 and prefer a solid state amp. Currently using a Pass X250.5 and hope that the Nords will be a step up ?

**nc42acc** · May 20, 2016, 06:22 AM

I can can concure with Joe, these amps are meant to stay powered up 24/7. I say a minimum of two full weeks of burn in for best results. I received confirmation the rev c boards are on there way from Colin. I am anxious to get the Nords back in the system for redemption.

Originally Posted by joeinid

Hi Devg,

I hope to receive the new boards and 994 op amps by Wed. next week. I hope to install them that night and get them cooking. Right now I have the original boards with the Sparkos op amps which are Class A and add warmth to the sound. They really are wonderful but please keep in mind that Class D amps in general take several hundred hours to break in. You can NOT judge them straight out of the box. I still think my amps are improving. AND you need to leave them on all the time in my book. I will post more opinion soon because I want to put these back on my speakers before the new parts come next week.

**a.wayne** · May 20, 2016, 11:03 AM

Good Stuff Marty.....

**Mike** · May 20, 2016, 02:30 PM

How do the Mola Mola amps differ from the NCore NC500 (other than price and appearance)? Do they have some secret sauce?

**Jack** · May 20, 2016, 02:37 PM

The modules in the Mola Mola Kaluga are NC1200's. Different and far more expensive modules.

Thread: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Re: Nord One Up Ncore NC500 amps, Class D ready for prime time .....

Posting Permissions