posted
Anybody used this amp? It is supposed to have 3 kW@2 ohms bridged. It is very cheap according to the ratings, but the inside looks decent, maybe it lacks a few capps. Branson is new brand here in Croatia and I can get 3 of these for the price of 1 Hifonics Colossus II. Is it worth it?
-------------------- Car audio fanatic
Opel - der Doktorwagen
Club 150+, single 12" Posts: 42 | From: Croatia | Registered: Apr 2005
| IP: Logged |
posted
ah i see. what i meant by stout was that it looked fairly well built from the pics. but i guess if people have tried it and think otherwise, im sure theyre right.
-------------------- Kenneth- TEAM DAILY Louisville, KY Posts: 1323 | From: Floyds Knobs, IN | Registered: Mar 2005
| IP: Logged |
posted
hm i wonder what that converts to in us currency? i personally think they "look" ok. id be interested in trying one. i saw them the other day on roe and i thought this before you posted this, kinda weird. id heard of them, but never known anyone who used them.
-------------------- Kenneth- TEAM DAILY Louisville, KY Posts: 1323 | From: Floyds Knobs, IN | Registered: Mar 2005
| IP: Logged |
posted
I wonder if they are hiding a dlogix 1kw solution under tha EMI shield =\ It's tough to scale with the angle of the pic. If it is, and they designed it properly, it should do 1500w into 1 ohm.
x2 = 3000 watts.
I don't mean to argue with the german audionuts.. we all know how they can be about thier audio
But every monoblock designed around the Dlogix solution did every penny of it's standard 1kw @ 2 ohm ratings. Of course I can't make any claims on this particular amp without touching it. All speculation
FWIW the Dlogix 1kw solution is class X and you can find that sub board in just about every Class X monoblock made a few years back when it was introduced. I don't think Dlogix was willing to liscence the technology, so everyone had to deal with them.
Off the top of my head Ample, Autotek, and hollywood class X monoblocks all had it. It came on a prefabbed PCB version in both upright and flat mount. They had a TON of problems with the epoxy globbed brain of the board, and although I don't think any company using it fessed up to it, Dlogix *did* revise the chip. It was then more stable.
The idea was to stuff the solution on a mini sub PCB. You get your suggested design parameters and of course a sample circuit to work with. Build your amplifier around the module, and if you paid attention, you managed to get 1.5kw @ 1 ohm.
Blah.. I'm babbling on..
Judging by the appearance in the pic I am assuming two main secondary filter caps in the vicinity of 80v @ 4700uf 85 degrees celcius, probably Nichicon brand. They could have put down two more, but 4700 per rail is doable.
I also assume about a total of 17,600uf of buffer cap on ther primary side (per amp of course) based on a guestimation of 2200uf x 8 pieces.
There appears to be a slave/master link to the preamps. Obvious this is a fixed strap.
The copper clad looks thick, and the power planes are nice and wide. Where they couldn't make a continuous path, they used buss bars. Thats a good thing.
Don't judge anything by the dual torridals. Yes two heads are better then one, but it may have been cheaper for them to install two to get the same current then paying for one custom wrapped unit. 50% of what you see in an amp was an accounting decision
I see a very simple PWM circuit, most likely a 494 with standard regulation, or it could be running wide open.. but highly doubtful
Be it the dlogix solution or some class D solution, the EMI shield was a nice touch.
I see the use of electrolytics around the RC filter. Odd choice and not the norm. This will have me wondering. Could be several reasons..
They also revised at least ONE of the amps as it does not include certain circuitry pertaining to the gain, freq, etc.
Anyways, just at a glance.. and just out of boredom.
- Matt
Posts: 47 | From: Pittsburgh PA | Registered: Dec 2004
| IP: Logged |
posted
i'm so sorry if im raising this thread from the graves, but im thinking of buying this amp X3000 and i only need to know is it stable at 1 ohm bridge? Cause i got 2 Pioneer subwoofers that can only be bridged at 1 or 4 ohms and 4 is way too much for dB drag so im gonna use it on a 1 ohm load. BTW i only need it to be stable at 1 ohm for 3-7 secs cause its dB drag the rest of the time ill have it hooked up at 4 ohms. also yall know what dB drag is so im gonna be using it at 1 ohm for about 30-40 times for cca 3-7 secs so i need it to be able to do that. and in the end IS THIS AMP CAPABLE OF SUCH A THING? tnx
-------------------- Stay cool ... Posts: 1 | From: Europe | Registered: Jan 2009
| IP: Logged |
posted
heres what I dont get is the x1500 has 120 amps of fuseing and this is 2 in the same case but its got 200 amps of fuseing where did the other 40 amps of fuseing go that it should have
-------------------- Team S*****n
quote:Originally posted by Creepy porn store employee : Im outa here like a heard of turtles"
![[Embarrassed]](redface.gif)
![[Big Grin]](biggrin.gif)
![[Eek!]](eek.gif)
![[Wink]](wink.gif)
![[Smile]](smile.gif)
![[Mad]](mad.gif)
Printer-friendly view of this topic