Again some evidence these mods make it a much more robust amp; was not putting attention to my clipping indicator and drove the amp’s that hard into clipping that it triggered my DC offset protection. Notice that I have 38,5V rails! Both monoblocks together went into protection mode and played nicely further when lowering the volume.
for all previous gens of pcb, problem solver is additional resistor in parallel to optodiode and changing BD follower pair to pair of more sturdy ones
one of the Boyz already did it (just starting morning coffee, bare with me) but I can't remember which type
I bought quantity of TTA004B/TTC004B for all future kits
Boards restored and cleaned up, 3 smd parts resoldered - back in business 😀
Now I just would need a current schematic for puck only and SET version.
Now I just would need a current schematic for puck only and SET version.
I'm putting my CLC psu order together and ran into a problem. The large chassis-mount capacitors I'd planned on using have gone up by 25%.
Digging around I found Chemi-con 22mF 63V 35mm capacitors for £3.52 in quantity at Digikey (ESMH630VSN223MA65S). ESR 9 milli-ohms.
Or some Kemet 47mF 40V 40mm for £11.28 at Digikey (ALS71A363DE040). ESR 21milli-ohms.
I can fit a maximum of 6 capacitors per rail, so 22mf-L-44mF to 44mF-L--88mF are possible with the cheaper capacitors.
Plus a set of Ducati motor run caps.
If there are are audible benefits, I can mix and match or switch to the 47mF capacitors to increase capacitance.
The question for those of you who've played around with different sizes of filter is at what point larger capacitance isn't an audible improvement or has minimal benefit?
My priority is a good transient response and dynamics.
Appreciate any advice you can offer!
TIA.
Digging around I found Chemi-con 22mF 63V 35mm capacitors for £3.52 in quantity at Digikey (ESMH630VSN223MA65S). ESR 9 milli-ohms.
Or some Kemet 47mF 40V 40mm for £11.28 at Digikey (ALS71A363DE040). ESR 21milli-ohms.
I can fit a maximum of 6 capacitors per rail, so 22mf-L-44mF to 44mF-L--88mF are possible with the cheaper capacitors.
Plus a set of Ducati motor run caps.
If there are are audible benefits, I can mix and match or switch to the 47mF capacitors to increase capacitance.
The question for those of you who've played around with different sizes of filter is at what point larger capacitance isn't an audible improvement or has minimal benefit?
My priority is a good transient response and dynamics.
Appreciate any advice you can offer!
TIA.
Oh well... I compared the old and current schematics... there are a lot of changes. Even though I can understand them and also take the changed part numbering on the PCB into account, I'm not sure if the changes are even feasible on the old PCB (some ofcthem surely, just different values). This will be interesting... The differences are marked in red:
hold your horses, as I promised, will send you files, to avoid any doubts
I just got distracted with some things unplanned
YOu'll use schematic appropriate for your pcbs and it'll be simple as change of 2 zener values and addition of 2 smd resistors, speaking of one channel
whatever pcb change I made in any iteration known to public, it was just gilding the lily, without changes to actual signal path/parts/conditioning
I just got distracted with some things unplanned
YOu'll use schematic appropriate for your pcbs and it'll be simple as change of 2 zener values and addition of 2 smd resistors, speaking of one channel
whatever pcb change I made in any iteration known to public, it was just gilding the lily, without changes to actual signal path/parts/conditioning
See schematic (Post #1) and choose your version.
SIT version. SITs are not "readily" available, but many people sell them.
SET version. Should be able to get everything from common sources.
SIT version. SITs are not "readily" available, but many people sell them.
SET version. Should be able to get everything from common sources.
