Hi.
Settled in at 44mV nicely. 1.5mv DC offset.
Man, this Amp combined with the FAST TL speakers is a potent setup. it PUMPS!
Cheers.
Nik
Settled in at 44mV nicely. 1.5mv DC offset.
Man, this Amp combined with the FAST TL speakers is a potent setup. it PUMPS!
Cheers.
Nik
Nice setup! I have said this before: if the FH9HVX and the FAST TL’s were the only amp and speakers that I have from here on out, I would be perfectly happy and not need to keep looking. Enjoy your setup and have fun listening to your music collection.
Hi,.
Yes to the pPI/HiFiBerry running Spotify Connect. It's better than Bluetooth as multiple people can connect, and isn't locked to one family members device... I have a super capacitor and voltage sensing to enable safe shutdown on amp power off. Also there is a cam and microswitch on the input selector to only power the Pi when it's input is selected.
Nik
Yes to the pPI/HiFiBerry running Spotify Connect. It's better than Bluetooth as multiple people can connect, and isn't locked to one family members device... I have a super capacitor and voltage sensing to enable safe shutdown on amp power off. Also there is a cam and microswitch on the input selector to only power the Pi when it's input is selected.
Nik
@nikpolini cool choice. I am using a 7” screen attached with a Hifi berry DAC + ADC pro. Connected to ri4. - I have to make a new case for it.
Friends,
today pcb's for FH9HVX & All Cee's finally arrived, they are still in the post, and I will go and get them this afternoon! Today I'd like to fit a big spool, which will definitely make me sweat.
I want to ask about the trimmer on the BIAS setup, I'm not sure ...before setting this trimmer to center (500R)?
today pcb's for FH9HVX & All Cee's finally arrived, they are still in the post, and I will go and get them this afternoon! Today I'd like to fit a big spool, which will definitely make me sweat.
I want to ask about the trimmer on the BIAS setup, I'm not sure ...before setting this trimmer to center (500R)?
Now I've made the layout the way I want it, and it's going to be to millimeters so I can fit the toroidal transformers (2x 500W) side by side standing up. It will be in a 4U box 300mm long. Tomorrow I will drill the holes for the FH9HVX board and cut the threads. 🙂
Attachments
Friends, a little progress, ...
On Friday I managed to complete FH9HVX as well as All Cee's (Vishay BC, Audio Note, Mundorf & 4x12.000uF CDE) I managed to mount the FH9HVX on the heat sink over the weekend.
Next I played around with the layout in the box, the best solution I came up with was this: toroidal transformers facing each other and the softstart pcb will be placed on an extra subpanel in front of the transformers.
On Friday I managed to complete FH9HVX as well as All Cee's (Vishay BC, Audio Note, Mundorf & 4x12.000uF CDE) I managed to mount the FH9HVX on the heat sink over the weekend.
Next I played around with the layout in the box, the best solution I came up with was this: toroidal transformers facing each other and the softstart pcb will be placed on an extra subpanel in front of the transformers.
Attachments
Looks like you are making steady progress HRDSTL. Hope you are hearing the results of your work soon!
The boards must still be from the original batch.
Post#6
https://www.diyaudio.com/community/threads/all-cees-psu-for-class-ab-amp.358478/
Post#6
https://www.diyaudio.com/community/threads/all-cees-psu-for-class-ab-amp.358478/
Hi HRDSTL,
Sorry about that - that’s a known error of an orphaned pad. Please connect with solder bridge. Scrape away solder mask around the orphaned pads and apply solder to bridge.
https://www.diyaudio.com/community/threads/all-cees-psu-for-class-ab-amp.358478/post-6476101
3mV offset is great. Nice bias current setting and gives good Class A envelope for lower power.
Transformer shield wire should be connected to chassis ground.
Best,
Anand.
Best,
Anand.
