Hi Colin
Is that the size of the Stereo case? Is there possibility of full width 45cm estimated chassis?
...and 5 channel amp? 🙂
Thanks
Is that the size of the Stereo case? Is there possibility of full width 45cm estimated chassis?
...and 5 channel amp? 🙂
Thanks
Last edited:
It is, And yes looking at a 5 channel amp using the SMPS3kA700 with a SMPS1200 but would have to use a deeper wider case.
Hi Colin.
Great news as mentioned, 5 channel would suit me perfectly!
43cm is the width of Oppo BDP and most other units on the market.
I reckon you could use 3 X SMPSA700 ...
Dedicate an SMPS to Centre channel (the most import speaker in Cinema)
Share an SMPS for Left-front and Left-rear
Share an SMPS for Right-front and Right-rear
The Rear speakers use very little compared to the other speakers and in Stereo mode, the PSU is really only driving the fronts ...best of both worlds
Great news as mentioned, 5 channel would suit me perfectly!
43cm is the width of Oppo BDP and most other units on the market.
I reckon you could use 3 X SMPSA700 ...
Dedicate an SMPS to Centre channel (the most import speaker in Cinema)
Share an SMPS for Left-front and Left-rear
Share an SMPS for Right-front and Right-rear
The Rear speakers use very little compared to the other speakers and in Stereo mode, the PSU is really only driving the fronts ...best of both worlds
Maybe one suggestion for your consideration on the circuit layout/design for the Home Theatre (believe is plan to use a pair of RCA input).
When the pre-amp is off/standby, the HT input should be shorted to the output connector(s).
(ie, do not need to power up the pre amp & switch the input to HT to work).
This arrangement make a lot of sense cause in HT mode, basically, the pre-amp is of no use at all. Why need to power up the pre-amp then.
My biggest problem at the moment is Hypex are out of stock of the SMPS1200A700 PSU's till April 18th! So if anybody has any spare let me know!
Just to clarify things. There's nothing wrong with Boggit's input buffer board. There's just a very slight amount of noise when my ear is to the speaker. Not even audible from the listening position. Nothing is broken, it's just noisier than the stock Hypex board with the Sparko and LM4562 opamps.
But for most this is a non issue as it seems 100% prefer the sound subjectively of his upgraded boards with the Sparko or Burson discrete opamps installed, compared with the stock Hypex board.
If it is noisier than the Hypex board there's something wrong. So either your assertion is correct and there's something that can be fixed on his board or there isn't. It would be useful to get to the bottom of this.
With some tube amps, it's understood that noise is part of the deal. With NCore, part of the appeal is that it's an "everything" amp- straight wire with gain sort of setup, that could be used in any rig with good results. That's not the case if you have noise on your low efficiency speakers, it would be intolerable on my high efficiency setup and many others, so a key part of the appeal of NCore is disposed of.
No, that would be quite different. Here we have an example where you claim that there is a loss of quality between Boggit's input board and the Hypex one even when the recommended op amp is used (LM4562). So, taking your assertion as a given, it would seem that Boggit could readily improve his input board, particularly when it was designed with the help of Hypex which he presumably still has access to. Either it has (1) a different typology, (2) different component selection, (3) different (read "disadvantaged") board layout or (4) some combination of each. It ought to be very easy at least for those with access to the circuit diagrammes and BoM to eliminate or flag as potential culprits (1) and (2).
I didn't say there was a loss of quality, I said there's a slight bit of noise. But he does offer the standard Hypex board as well so whoever buys his amps are free to choose which ones they want.
And as far as making his board better, that's up to him if he thinks it's worthwhile doing.
I think all here would consider a "slight bit of noise" to be "a loss of quality". Your second sentence doesn't help anyone.
You are the one that tossed the grenade into the room. You have both boards. Presumably the only other person who might have both (absent potentially someone from Hypex) is Boggit.
Certainly your claim is worth investigation. Boggit, what say you? Have you been able to replicate the "slight hiss" or perhaps
You are the one that tossed the grenade into the room. You have both boards. Presumably the only other person who might have both (absent potentially someone from Hypex) is Boggit.
Certainly your claim is worth investigation. Boggit, what say you? Have you been able to replicate the "slight hiss" or perhaps
Last edited:
I have both boards and all 3 op amps and notice no difference in noise from one board or op amp to the other. Perfect silence at full volume with nothing playing and my ear to the speaker.
I think what Bavmike is saying is he championed the new board. He observed a slight noise in a tiny way and more so with the Sonic Imagery which I have not tried yet. Like all forums everybody jumps upon the bandwagon and creates a problem that is not there. Hence why you have to be carful what you say. A phone call to Hypex from sensitive soul probably with an "angle" axe to grind, with nothing better to do and I have to increase my prices and am banned from restrained non promoting posts! I'm a bloke in a 4Mx4M log cabin in his garden bringing a good value product. Now with Hypex not being able to supply me NC500's or SMPS till mid May will have to let my employee go and hope I can find an alternative and make it through to May! So yes it truly has exploded the only winners will be the big boys. Feeling pretty sore. (Bavmike your inbox is full.) Incidentally I don't think (hope) Bavmike meant any harm.
A characterization of the noise would be helpful, but bavmike is unwilling to do anything to measure what's happening. It could be that when unboxed (as I believe his unit is) the "Boggit Board" is more sensitive to interference. It could be any number of things. Some measurement would help pinpoint this. Sure it's a hassle, but it's the right thing to do.
Regarding your employee, it's a tough way to learn it, but core to any manufacturing endeavor is securing supply chain.
Easy to say, but until I knew, learnt run rate, I didn't want to order £20K worth of modules! Its easy when you have loads of money to throw at it. In hindsight wish I had. I was on the cusp of doing so.