I looked more into Class-D options (which I initially avoided thinking that I could cut the cost down by reusing some components I already have like heatsinks, power supply, power supply caps) and there are so many. No very clear winners except in the cost department. Indeed 3e Audio TPA3255 and the 3e Audio TPA3255 Reference came up (also ICEpower different models might be good for me and maybe some Hypex option under $500). Surprisingly, they seem to be cheaper anyhow even if I don't reuse anything other than the chassis (the 3e options). I can only guess how they would compare to something like F5 turbo. Maybe you guys can enlighten me or guide me a little among those choices 🙏
It really is, but there are so many parts! I checked all the transistors and replaced the bad ones, some resistors are still burned, but every time I try to run it, everything starts burning on the right channel. Can't find the issue. There's too much current specifically on the part of the right channel board, which goes to control the gates on the MOSFETs. I could try replacing every single piece, every single part, but that's basically making it from scratch. Or I could try to seek out expertise online or I know one guy in my city who does this kind of thing, but it's hard, I've been trying to do it for a couple of months now and in the end got nowhere. Eh, it's a little bit sad, but I'm happy I had it for the time that I had. It's a great amp. Perhaps it's just time for me to try something new. Get a taste of something new. Hopefully better. The cabling in the Tandberg kinda sucked. I could do it right if I chose a DIY route.
if you have the circuit , you can fix it. It is easy to check and change new part.
check again all parts (transistor , diodes ) you will find out the faulty part.
Better to change all signal cable covered with metal mesh .....
If I had a choice, I would choose this amplifier over that one ( F5 example )
check again all parts (transistor , diodes ) you will find out the faulty part.
Better to change all signal cable covered with metal mesh .....
If I had a choice, I would choose this amplifier over that one ( F5 example )
Kinda drooling about the Hypex NC400 right now tbh, although it's a stretch budget wise, but maybe I could calm down for a while if I had it. And finally get to know Class D and what it really has to offer. Ofc I also know that it'd be hard for me to cut corners if I actually did something like that and the overall costs would likely balloon a little bit... Idk.
As for AB. Wolverine indeed sounds like something quite notorious and likely up my alley. Modulus 86 and Honey Badger also? The costs differ a bit, but how about their performance, has anyone had a chance to compare these? Clarity wise, dynamics wise, excitement and in your face type sound? These are the options I'm looking at, so any knowledge about how they compare I would be extremely interested in. Otherwise I'll just have to find out through experience. And most likely once I build one, I will live with it for quite a while. I appreciate all the suggestions, but... Idk, I guess my best bet is to look for what attracts the most enthusiasts especially in this current and late last decade and make my choices based on that. If somebody makes some suggestion, I would really love to hear why in particular or how it compares sonically and otherwise to the other options already mentioned or implied by their notoriety and popularity in the DIY world.
As for AB. Wolverine indeed sounds like something quite notorious and likely up my alley. Modulus 86 and Honey Badger also? The costs differ a bit, but how about their performance, has anyone had a chance to compare these? Clarity wise, dynamics wise, excitement and in your face type sound? These are the options I'm looking at, so any knowledge about how they compare I would be extremely interested in. Otherwise I'll just have to find out through experience. And most likely once I build one, I will live with it for quite a while. I appreciate all the suggestions, but... Idk, I guess my best bet is to look for what attracts the most enthusiasts especially in this current and late last decade and make my choices based on that. If somebody makes some suggestion, I would really love to hear why in particular or how it compares sonically and otherwise to the other options already mentioned or implied by their notoriety and popularity in the DIY world.
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IMHO, if you want tight bass, detailed treble and 'in your face' type of sound, I think you should go with a high feedback AB amp, maybe the examples you mention above. Low feedback (most of the simple amps with few devices are) will give you smoother sound (less detailed and in your face) and not so great control of the bass.
Yeah, aggressive/intense type sound, but not in a bad way. Then what you're actually saying is that I need what I already had. The Tandberg 3026A which was 150W into 8 Ohm.
I suppose F5 Turbo would be considered low feedback. Would all AB amps be considered high feedback? Modulus 86 is lower powered AB, but it's reportedly very detailed and such with still great dynamics. Plus a very low noise floor which would lend itself to headphone use.
But what about class D? I have no experience with higher end of these amps. I know it's supposedly less romantic, but would it completely miss on my craving for aggressive intense sound despite being very detailed and high power and having great dynamics? Should I just go listen to some class D amps before I make any more conclusions about anything? Or is it pretty clear based on my descriptions of what I like that class D would simply be not for me. But IDK I think if there's SOMETHING there that is awesome, that A or AB can't offer, I'm sure my brain would learn to recognize and appreciate it, perhaps even couldn't live without it... But for now I know I like the detailed and aggressive, vivid, lively, so going with that would be less likely to be a misstep, more likely to put smiles on my face!
I suppose F5 Turbo would be considered low feedback. Would all AB amps be considered high feedback? Modulus 86 is lower powered AB, but it's reportedly very detailed and such with still great dynamics. Plus a very low noise floor which would lend itself to headphone use.
But what about class D? I have no experience with higher end of these amps. I know it's supposedly less romantic, but would it completely miss on my craving for aggressive intense sound despite being very detailed and high power and having great dynamics? Should I just go listen to some class D amps before I make any more conclusions about anything? Or is it pretty clear based on my descriptions of what I like that class D would simply be not for me. But IDK I think if there's SOMETHING there that is awesome, that A or AB can't offer, I'm sure my brain would learn to recognize and appreciate it, perhaps even couldn't live without it... But for now I know I like the detailed and aggressive, vivid, lively, so going with that would be less likely to be a misstep, more likely to put smiles on my face!
yes .
It works immediately after assembly, the circuit design and components are simple. Similar to other amplifier circuits, there is nothing difficult.
I even combined 2 amp circuits operating in bridge mode with a tone circuit right in the amplifier circuit.
just note :
1, iff using voltage lower , example 50V you need reduce R7 at input stage to 10K.
2, bias current of 30mA per FET pair
It works immediately after assembly, the circuit design and components are simple. Similar to other amplifier circuits, there is nothing difficult.
I even combined 2 amp circuits operating in bridge mode with a tone circuit right in the amplifier circuit.
just note :
1, iff using voltage lower , example 50V you need reduce R7 at input stage to 10K.
2, bias current of 30mA per FET pair