How hot is too hot

skrol

motorhead43026 wrote: »

I upped the bias on my HCA-1500 so the heat sinks run in the 116 (122 degrees is max) degree area. This equates to 17mv. The bias was at like 7-8mv and the thing would not even get warm. This made a improvement in the sound overall.

Of course it will never rival a class A in heat.

I do have at lease 6" above for venting, and it's in an open rack.

I think I'm running around 15mV and could probably up it safely.

jayman_1975

Ok. Here's the guts of the BDP 93. Looks somewhat different than a stock one. Not sure what all that blue stuff is on all the wires but hey have painted it everywhere. There's a few other differences too that I don't have the knowledge to comment on.

jayman_1975

Here's the stock

jayman_1975

I'll get the Onk apart tomorrow and see what's up

Emlyn

Magnetic ferrite cores no more than 50 cents a piece:

https://www.amazon.com/Magnetic-Ferrite-Noise-Suppressor-Diameter/dp/B00V4MMIBW/ref=pd_lpo_vtph_23_tr_t_3?_encoding=UTF8&psc=1&refRID=8FY0D7XM5BJ055E8RCJM

The blue stuff is probably conductive paint but I have never seen a blue version before. Such paint, if that is what it is, is used with electric guitars to some good effect but in this case it looks like a five year old applied it.

The work seems aimed at RFI and EMI blocking. In theory it would do something. Also seemed to replace the IEC jack which may be $10. I am surprised at the limited use of hockey tape and conductive foil on hookup wires and cables. Maybe they ran low.

I have no idea what was charged, but I know now why the Company does not release photos of the expert craftsmanship and trade secrets. It appears nothing was done to the disc drive, which may be a good thing.

Out of curiosity I would contact Oppo and see what they have to say. Post it here if it's illuminating.

Nightfall

Sloppy.

Emlyn

Funny thread from PS audio on one of their "any condition" customer trade ins (scroll up and see if the work looks familiar):

http://www.psaudio.com/pauls-posts/upgrades/#comments

To quote Paul McGowan on one of his products sent back to him: We were the original manufacturer. It’s our product and no, we would never have done something gross like that. It was an aftermarket hatchet job performed at great expense to the customer and presented as an upgrade in sound quality. It might have been, but it destroyed the unit’s insides.

F1nut

This is what a true CDP mod looks like.

Stock:


Modified:

txcoastal1

^^^^Rookie

That was a purchase that I let slip through my fingers....Jolida CDP, if people are wondering

jayman_1975

F1nut wrote: »

This is what a true CDP mod looks like.

Stock:


Modified:

Wow. I see the difference. Nice work too.

lightman1

txcoastal1 wrote: »

^^^^Rookie

That was a purchase that I let slip through my fingers....Jolida CDP, if people are wondering

Yep. Missed it by about four minutes myself.....phooey!

jayman_1975

Here's the Onk

pitdogg2

I'd REALLY like to know what the blue paint looking stuff is. I don't get all the ferrite cores are really doing. I've never seen them used back to back like that. That amount of heavy extra weight on everything can't be a good thing

BlueFox

Is The Upgrade Company the same as Modright?

txcoastal1

BlueFox wrote: »

Is The Upgrade Company the same as Modright?

Bite your tongue

motorhead43026

BlueFox wrote: »

Is The Upgrade Company the same as Modright?

Absolutely not.

BlueFox

Then I think that solves the problem.

Hermitism

F1nut wrote: »

This is what a true CDP mod looks like.
Modified:

What did you use to wrap your wires? I can see something red and something black that was used. If you have a wire harness with 10 wires bunched up, are you wrapping each wire individually inside the outer covering or do you take the entire harness and wrap it as if it was one large wire? Did you do this on all your electronics or just on your source? If I'm only using my Blu-ray player to play Blu-rays and not music CDs, do you think I'd notice an benefit? My system is used 99% for HT now. My personal A/V advisor that I keep on retainer never suggested anything about wrapping my wires when I had my equipment taken apart for the Dynamat treatment. Might have to fire him!

@DSkip

F1nut

Modwright mods most always address the power supply since that's where it all starts and usually he makes a separate enclosure with the new power supply in it. Again, most of his mods also involve adding a tube output stage. You know what you're paying for.

txcoastal1

And Dan is a forum member on several sites and has no problem explaining anything in detail. Very nice guy, as is his staff. I've done plenty business and chats with Dan over the years, he's a great guy.

jayman_1975

It seems these mods are pretty weak sauce. I guess it doesn't sound as good as I thought. There's no way it could

F1nut

Hermitism wrote: »

F1nut wrote: »

This is what a true CDP mod looks like.
Modified:

What did you use to wrap your wires? I can see something red and something black that was used. If you have a wire harness with 10 wires bunched up, are you wrapping each wire individually inside the outer covering or do you take the entire harness and wrap it as if it was one large wire? Did you do this on all your electronics or just on your source? If I'm only using my Blu-ray player to play Blu-rays and not music CDs, do you think I'd notice an benefit? My system is used 99% for HT now. My personal A/V advisor that I keep on retainer never suggested anything about wrapping my wires when I had my equipment taken apart for the Dynamat treatment. Might have to fire him!

@DSkip

It's Techflex and heatshrink, purely cosmetic. However, I did upgrade the wire from the IEC to the power switch as well as other locations.

Emlyn

jayman_1975 wrote: »

It seems these mods are pretty weak sauce. I guess it doesn't sound as good as I thought. There's no way it could

I suspect it sounds better than it looks.

jayman_1975

I honestly didn't think the inside of the he Onk looked that bad. There are a whole $h!t ton of wires that are wrapped so as to remove the interference they would be susceptible to if they were just stock.

jayman_1975

Did anyone notice the Isoclean fuse they put in? I wonder why they only did the one.

Hermitism

F1nut wrote: »

Hermitism wrote: »

F1nut wrote: »

This is what a true CDP mod looks like.
Modified:

What did you use to wrap your wires? I can see something red and something black that was used. If you have a wire harness with 10 wires bunched up, are you wrapping each wire individually inside the outer covering or do you take the entire harness and wrap it as if it was one large wire? Did you do this on all your electronics or just on your source? If I'm only using my Blu-ray player to play Blu-rays and not music CDs, do you think I'd notice an benefit? My system is used 99% for HT now. My personal A/V advisor that I keep on retainer never suggested anything about wrapping my wires when I had my equipment taken apart for the Dynamat treatment. Might have to fire him!

@DSkip

It's Techflex and heatshrink, purely cosmetic. However, I did upgrade the wire from the IEC to the power switch as well as other locations.

Okay, Derek gets a pass this time.

Did you upgrade the wire to a thicker gauge or to something braided? Or just a better quality wire/better insulation? Does it produce similar results as upgrading a power cord on a smaller scale? Can you explain what you did in the lower right corner? Are those caps?

F1nut

Better quality, heavier gauge wire.

Yes, those black Mundorf caps replaced the stock generic junk. They just fit under the lid.

There wasn't much in there that wasn't upgraded starting at the IEC, right through the power supply, the signal path, the clock and ending at the RCA jacks with a custom copper mounting plate. Everything was done modular in case something needed to be worked on down the road.

F1nut

A pic from the rear.

Hermitism

Wow, that's awesome. Most of that would be way out of my comfort zone to attempt.

Mod threads are always my favorites.

mhardy6647

I actually think the sub-topic(s) of this thread probably deserve a thread of their own -- if anyone were so inclined.

Me? I got nothing, unfortunately.