Why not make your own from a piece of L-shaped extrusion or sheet metal?
Attachments
B1 has gone to advanced B1
I was playing with a DIY DCB1 but the board was not very good.
I've since chopped the board and have reconstructed the B1 with the Salas Shunt Reg.
It does sound VERY GOOD, but without A/B comparative testing I can't say if it sounds any better with the Reg.
I was playing with a DIY DCB1 but the board was not very good.
I've since chopped the board and have reconstructed the B1 with the Salas Shunt Reg.
It does sound VERY GOOD, but without A/B comparative testing I can't say if it sounds any better with the Reg.
Attachments
F4
Finally done. Took much longer than expected but good things come to those who wait. 😉😉
Some details of the enclosure before assembling:
With metalwork at that level it is actually pretty difficult to find decent black screw - I haven't found them yet. After integration of the electronics:
Closeup 😉 - Some changes there, smaller resistors (visible), higher bias (not visible 😀) - PCBs from Nagard & Elfenreiter...
Below the capacitors - some Hexfreds and a Filter/Current Limiter
Pretty, isn't she?
Apologies for the slightly noisy pictures but its rather dark in my living room at that time of the year 😉.
I know the signal cabeling is not done properly/twisted etc. but the F4 has literally no background noise/humm whatsoever even the way it is so its ok for now. I also know that the F4 technically is not an amplifier, I used the word anyway 😉.
This one is done, I have another one which is almost done, intend to run them in balanced mode. However, I'm having so much fun that I am not really motivated to finish the other one. Really good sounding amplifier and as always - thanks Mr. Pass. 😉
Cheers
Sven
Finally done. Took much longer than expected but good things come to those who wait. 😉😉
Some details of the enclosure before assembling:
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
With metalwork at that level it is actually pretty difficult to find decent black screw - I haven't found them yet. After integration of the electronics:
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Closeup 😉 - Some changes there, smaller resistors (visible), higher bias (not visible 😀) - PCBs from Nagard & Elfenreiter...
An externally hosted image should be here but it was not working when we last tested it.
Below the capacitors - some Hexfreds and a Filter/Current Limiter
An externally hosted image should be here but it was not working when we last tested it.
Pretty, isn't she?
An externally hosted image should be here but it was not working when we last tested it.
Apologies for the slightly noisy pictures but its rather dark in my living room at that time of the year 😉.
I know the signal cabeling is not done properly/twisted etc. but the F4 has literally no background noise/humm whatsoever even the way it is so its ok for now. I also know that the F4 technically is not an amplifier, I used the word anyway 😉.
This one is done, I have another one which is almost done, intend to run them in balanced mode. However, I'm having so much fun that I am not really motivated to finish the other one. Really good sounding amplifier and as always - thanks Mr. Pass. 😉
Cheers
Sven
That is a very clean and tight beautiful amplifier you put together sir. 
Are those panels painted after engraving?
Regards
Are those panels painted after engraving?
Regards
Last edited:
That is, by far the nicest F4 that has been made.
Fantastic!!
One question, it is black or a dark grey?
Fantastic!!
One question, it is black or a dark grey?
Thanks for the nice comments. The enclosure is cnc cut and then shot blasted / anodized, nothing else. It is black but rather dull (not glossy). Its not grey but it is a seems a bit lighter than e.g. the black aluminium bolts I tried. As I said, I have problems finding bolts that look similar.
The metalwork has been done by a guy I know who owns a CNC mill etc. - if somebody lives in Germany and wants the contact pm me, he is for sale 😉😉.
Regards
Sven
The metalwork has been done by a guy I know who owns a CNC mill etc. - if somebody lives in Germany and wants the contact pm me, he is for sale 😉😉.
Regards
Sven
I cant believe guys will call this FUGLY. It's an excellent piece of work.
I would agree that it could do with some interior vetillation though.
I would agree that it could do with some interior vetillation though.
Your very well planned and finely crafted F4 looks great from any angle! This is DIY at a truly high level, I like it much!
Martin
Martin
Now where is the blush-smiley when you need one. Thanks guys.
Temperature - Zenmod is right, there is some space between lid/bottom and the heat sinks. Since this is basically one big chunk of metal after a day or so everything has the same temperature, that includes all 6 sides and the insides - 55° celsius. Considering that I'm running a higher bias that is OK. I might have to reduce for summer, tough. 😀
Temperature - Zenmod is right, there is some space between lid/bottom and the heat sinks. Since this is basically one big chunk of metal after a day or so everything has the same temperature, that includes all 6 sides and the insides - 55° celsius. Considering that I'm running a higher bias that is OK. I might have to reduce for summer, tough. 😀