So I managed to connect all the modules. Just so I can briefly connect it to my main speakers. So far without the front panel, it did not affect the quality of music reproduction 😀
I had a short time to listen ... but he plays beautifully.
I found out that there are a lot of members who owned the FO 1.4 M amplifier, I am one of them. FO was not bad, but frequent failures and no support redirected me to V4H and so far I am satisfied. 🙂
Very happy to know! And that's an excellent dual mono assembly with SMPSs! Do share more pix when you close the cab.
🙂
Update:
I am printing a fresh batch of 100 V4H Rev2 boards in April. Interested members feel free to join for your pair or more. 🙂
I am printing a fresh batch of 100 V4H Rev2 boards in April. Interested members feel free to join for your pair or more. 🙂
Hi fredlock,
I can't compare it directly, because I had other speakers with the FO 1.4M. As someone here has already noted, the FO 1.4M is not a bad amplifier, it also plays good, but the V4H seems to me with better space, localization and bass. V4H has better control at higher volumes. This is my opinion.
Hi shaan,Very happy to know! And that's an excellent dual mono assembly with SMPSs! Do share more pix when you close the cab.
thanks 🙂 I'll upload more photos later. I have an SMPS 600 from Cresnet, before that I had them connected with FO 1.4M. They work great. 😉
Hi Robodo.
One little thing... I see that you routed the speaker return (black terminal, -ve) cables to the points where you connected the power supply grounds to the chassis. These two return cables should go directly to their SMPS's onboard ground terminal for least amount of ground interference caused by speaker return current.
Hi shaan,
thanks for your comment, i've already reconnected. 😉
I made the connection to the chassis near the power supply, via Ground Loop Breaker, for each SMPS separately.
Attachments
Hi shaan,
Should I modify the original boards or can we make a deal on Rev2 boards. PM if you want.
Myles
Should I modify the original boards or can we make a deal on Rev2 boards. PM if you want.
Myles
Update:
Due to new covid regulation the printing process of the board batch is delayed by a week. Expecting them at hand by mid May.
Thanks to all who are waiting.
Due to new covid regulation the printing process of the board batch is delayed by a week. Expecting them at hand by mid May.
Thanks to all who are waiting.
After taking a bit of diversion into DHT amps and preamps (quite a bit of fun, and quite educational) I managed to hook up my PeeCeeBees last night for the first time in more than a year.
Though, I did enjoy my original PeeCeeBe build, I did not have big enough of heatsinks for the the voltage I was running. Even set to a low idle current, I couldn't run the amps more than 40 minutes before they were hot enough to cook an egg. So the amps were set aside.
A few weeks ago I was at one of my local Metal suppliers who had a bin of Aluminum plate remnants on super-sale. I picked up two hefty chunks 430 X 200 X 16 mm. $20 for both pieces. I cut some channels in the plates with my table saw to increase the surface area, and gave them a very thin but even coat of flat black spray paint to increase emissivity.
Even at 300ma bias on the MosFets, and few hours of near concert level listening, the heatsinks never got more than pleasantly warm--about like that of a nice heating pad for your sore back.
These are only Rev 1 units, but these are very fine sounding amps!!
I am very glad to get acquainted with them again.
So, thanks once more to shaan for a fine design, and a fine set of PCBs!
And cresnet, too! For I am using his SMPSs!
Best regards,
John
Though, I did enjoy my original PeeCeeBe build, I did not have big enough of heatsinks for the the voltage I was running. Even set to a low idle current, I couldn't run the amps more than 40 minutes before they were hot enough to cook an egg. So the amps were set aside.
A few weeks ago I was at one of my local Metal suppliers who had a bin of Aluminum plate remnants on super-sale. I picked up two hefty chunks 430 X 200 X 16 mm. $20 for both pieces. I cut some channels in the plates with my table saw to increase the surface area, and gave them a very thin but even coat of flat black spray paint to increase emissivity.
Even at 300ma bias on the MosFets, and few hours of near concert level listening, the heatsinks never got more than pleasantly warm--about like that of a nice heating pad for your sore back.
These are only Rev 1 units, but these are very fine sounding amps!!
I am very glad to get acquainted with them again.
So, thanks once more to shaan for a fine design, and a fine set of PCBs!
And cresnet, too! For I am using his SMPSs!
Best regards,
John