I haven't yet started building the Quasi.
Your comment about the mids ''not quite enough grunt to keep up'' is trowing me off, are you saying this amp will not perform well with bass and mids..?
You seem to have a decent size power transformer, nice bridge rectifier and lots of filtering caps. This is odd. Maybe of of the designer can comment.
p.s. very nice amps !
Thanks,
Eric
Your comment about the mids ''not quite enough grunt to keep up'' is trowing me off, are you saying this amp will not perform well with bass and mids..?
You seem to have a decent size power transformer, nice bridge rectifier and lots of filtering caps. This is odd. Maybe of of the designer can comment.
p.s. very nice amps !
Thanks,
Eric
Nice work Evan!
Nice speaker!
You can hear what you bult any time!
This is a big advantage.I haven`t good speaker and can`t hear differens
Hi Evan,
What amp are you using to drive the woofers? Mids don't usually need a lot of power and tweeters almost nothing. What crossover are you using and is it adjustable? Hard to believe this amp is not sufficient for the mids. Are you mid drivers low efficiency?
Thanks, Terry
What amp are you using to drive the woofers? Mids don't usually need a lot of power and tweeters almost nothing. What crossover are you using and is it adjustable? Hard to believe this amp is not sufficient for the mids. Are you mid drivers low efficiency?
Thanks, Terry
His "midrange " look like 10-12 inches...............
Terry Question please:
I do not have any 2SA1381 or 2N5401
can I use KSA992 for the input?
and KSA1220A temp for 2sa1381
Thanks
Terry Question please:
I do not have any 2SA1381 or 2N5401
can I use KSA992 for the input?
and KSA1220A temp for 2sa1381
Thanks
His setup may be special where the amp behaves differently from others. There have been many people who mentioned good bass and mid range from the board they made. Why do you doubt it ? I'm sure it will sound good across the bandwidth. Try different type input capacitors if you want. They can sound quite different at times!
Dear Congo5,
Please post the schematic about which you are asking a question, by the side of the layout. That helps in reducing a lot of searching. By the way, can you kindly point to the post of Dacz where his Ver 2 is posted ? Also the Schematic for the Thango Board as shown above ?
gannaji.
Please post the schematic about which you are asking a question, by the side of the layout. That helps in reducing a lot of searching. By the way, can you kindly point to the post of Dacz where his Ver 2 is posted ? Also the Schematic for the Thango Board as shown above ?
gannaji.
I didn't mean to mislead. The quasi has great bass. Very full and rich. This was on a couple pair of "regular" passive crossed two way speakers. Both the shop set and a nice pair of ariels.
The midrange in the speakers shown is a beyma 12mi100 https://www.beyma.com/products/lowmidfrequency/112MI108
The horn tweeters came from CSS not shown on their site anymore. There are a pair of rear firing selenium tweeters for extra sparkle.
The 15" woofers are each driven by a 5 pair slewmaster +- 78 vol rails. a mini dsp 2x8 does the crossover.
I had been driving the midranges and tweeters with a 2 pair lat fet amp =+- 72 volt rails. http://www.diyaudio.com/forums/soli...erformance-yet-rather-simple-hybrid-more.html through a passive crossover. With the quasis in place I am running fully active...4 amp channels per side.
At +- 35 volt rails the quasi couldn't drive the midrange loud enough to keep up with the other parts of the system. It sounds great and only lost out at silly high volume.
The midrange in the speakers shown is a beyma 12mi100 https://www.beyma.com/products/lowmidfrequency/112MI108
The horn tweeters came from CSS not shown on their site anymore. There are a pair of rear firing selenium tweeters for extra sparkle.
The 15" woofers are each driven by a 5 pair slewmaster +- 78 vol rails. a mini dsp 2x8 does the crossover.
I had been driving the midranges and tweeters with a 2 pair lat fet amp =+- 72 volt rails. http://www.diyaudio.com/forums/soli...erformance-yet-rather-simple-hybrid-more.html through a passive crossover. With the quasis in place I am running fully active...4 amp channels per side.
At +- 35 volt rails the quasi couldn't drive the midrange loud enough to keep up with the other parts of the system. It sounds great and only lost out at silly high volume.
I've got a stereo 5pr Slewmaster hooked up to Wolverine inputs and they are seriously powerful.
I should think that almost anything will have trouble keeping up with 78V Slewmasters at volumes that would cause those boards to break a sweat!!
Evan, I assume you adjusted the EQ to suit the different gain level of these amps?
I should think that almost anything will have trouble keeping up with 78V Slewmasters at volumes that would cause those boards to break a sweat!!
Evan, I assume you adjusted the EQ to suit the different gain level of these amps?
Hello my friends.
No problem in error my name, the important thing here is to communicate.
Thiago is not such a popular name in other countries.
If there is interest I attach to silk screen with the current values
Regards
Thiago
No problem in error my name, the important thing here is to communicate.
Thiago is not such a popular name in other countries.
If there is interest I attach to silk screen with the current values
Regards
Thiago
Thiago,
A beautiful pcb....... elegantly set up, almost artistic!
I think you rival the da Vinci of DIY, Alex MM!!
Hugh
A beautiful pcb....... elegantly set up, almost artistic!
I think you rival the da Vinci of DIY, Alex MM!!
Hugh
