Tracing The PeeCeeBee

[Beginner_N]

A fresh CRC PSU to power the PeeCeeBees (or any other amplifier) and also protect the speakers at the same time, is here!!!

Hi Shaan,

What's the launch date?

It would save lot of wire mess.

Regards,
Nishant

Sent from my MotoG3-TE using Tapatalk

 

[shaan]

Hi Nishant.

The design is ready however what remains to be done is to test the prototypes for final error checking, doing some measurements and fine tuning. Launch date - I'm rooting for Christmas, if not before.

Yup it will decrease the spaghetti factor significantly.

A few more details:

It will have rail headers for powering two channels, connecting two speaker return cables and a chassis ground. So, just the required absolute basics. One can also use it solely as a PSU by not populating the speaker protection segments. All mounting holes will be plated but fully isolated from all rails. There will be provision for reservoir capacitors with 10mm and 22.5mm pitch, as well as 5mm and 7mm pitched film caps at output.

There will be fuses at rail outputs in the release version, i.e. they will be after the capacitor bank, not before. This may seem potentially problematic as some amplifiers tend to output DC if both rail fuses don't blow during a fault. However, the speaker protection segments take care of that and no dangerous DC voltage will ever see the speakers. Having the fuses after the capacitors also means that one can use the lowest ampere rated fuses that suites an amplifier for basic short circuit protection increasing reliability, without having the fuses blown during capacitor charging inrush current.

One more week of waiting for the V4H prototypes.

 

[shaan]

Thought this might interest some.
Here is a THD simulation of the upcoming V4H, traced 1000 cycles with 1uS steps. 1KHz 260WRMS into 4R.

0.007%

The James Bond PeeCeeBee?

 

[shaan]

What? Free PeeCeeBees?!

PeeCeeBee V1.1, V2, V3 Giveaway!

 

[shaan]

The next black beauty is here. Meet the PeeCeeBee V4H.

 

[Aniket]

Beautiful

 

[MaSh]

The next black beauty is here. Meet the PeeCeeBee V4H.

Wow looks great. The connector locations seem to be the same as the V4.

MaSh

 

[shaan]

Hi Shobhit.

Yes I like this orientation of the connectors.

 

[MaSh]

Hi Shobhit.

Yes I like this orientation of the connectors.

Cool, this could be the signature orientation .

MaSh

 

[shaan]

 

[shaan]

Update: V4H isn't just a "good looking" amplifier, check out below link.

PeeCeeBee V4H First Tests

 

[shaan]

The PeeCeeBee V4H is finally online!

PeeCeeBee V4H GB

 

[captrajesh]

Great news. Few members including me were sweating.

 

[shaan]

Hi Rajesh. In this cold?!!!
Sorry I wish I could be more swift.

Your six giveaway PCBs are patiently awaiting your call. Looking forward to see you there soon.

 

[captrajesh]

Hi Rajesh. In this cold?!!!
Sorry I wish I could be more swift.

Your six giveaway PCBs are patiently awaiting your call. Looking forward to see you there soon.

Yes, I was awaiting this group buy as well. Replying on the other thread so that you can count me on the group buy. Didn't I forget to congratulate you! Hearty Congratulations.

 

[shaan]

Thanks a lot for joining!

 

[sadik]

PeeCeeBee V4............ on the way.

A little teaser....

Sadik Bhatkar.....

 

[shaan]

White on black. Complements the boards well Sir ji!

 

[crosstalk]

Congrats! The PCB looks so classy, so classy!

 

[shaan]

Thanks! I like designing classy stuff.

V4H experiments helped PeeCeeBee's Class-AB performance and sonics at 100mA bias cross an important milestone - near zero crossover distortion, usually predominantly attributed to P-P Class-A amplifiers.

As a result, now it sounds classy too.