Search found 47 matches

by ReneBMW
Wed Nov 13, 2013 8:55 pm
Forum: Car Audio
Topic: Efficiency of different amplifiers at different loads
Replies: 7
Views: 3183

Re: Efficiency of different amplifiers at different loads

Dont know what CCA is, but its all OFC.
Then the only thing to do is have my alt upgraded, and i dont have a clue where to have that done in the netherlands, but i Will start my search.
The alt I'm currently running is in my car for a year now
by ReneBMW
Wed Nov 13, 2013 2:24 pm
Forum: Car Audio
Topic: Efficiency of different amplifiers at different loads
Replies: 7
Views: 3183

Re: Efficiency of different amplifiers at different loads

The music i play is hardstyle, house with fast hitting beats, I see the voltage going down every time the bass hits, not only on low bass, also on midbasses... I have the ti elite 5 active on a zpa 0.3 and it uses all of the 150 wrms. When I play rap (hate rap but I like the bass) with longer bass n...
by ReneBMW
Wed Nov 13, 2013 7:42 am
Forum: Car Audio
Topic: base cube remote wire
Replies: 4
Views: 2613

Re: base cube remote wire

If it doesn't work, just snip the connector and put a new connector on 180 degree turned
by ReneBMW
Wed Nov 13, 2013 7:40 am
Forum: Car Audio
Topic: Efficiency of different amplifiers at different loads
Replies: 7
Views: 3183

Efficiency of different amplifiers at different loads

Hello. As I'm just curious I would like to know how efficient the pg amps are/where. Especially the older ones, like the zpa. I know that a clas a/b amp has a +/- 60% efficency, but decreases as load gets lower. Now, I have a modified zpa 0.3 running 2 ti212d2, what will efficiency be of a zpa on a ...
by ReneBMW
Sat Nov 02, 2013 11:52 pm
Forum: Car Audio
Topic: ZPA 0.3 v1 fan issues.
Replies: 11
Views: 5493

Re: ZPA 0.3 v1 fan issues.

Hey zeropoint!
I like it to sound good, but it Will never be a real sq setup.
Your right about the fans making more noise, but i dont realy mind.
When (if...) i get a new car and make a sq setup I can stil make it quit withe the pannaflows.
by ReneBMW
Sat Nov 02, 2013 12:06 pm
Forum: Car Audio
Topic: ZPA 0.3 v1 fan issues.
Replies: 11
Views: 5493

Re: ZPA 0.3 v1 fan issues.

if I recall correctly those v1 fans had issues. I would try just replacing the fans first. I used to sell v1 Zpa amps and they seemed to have that problem but the v2 were "fixed". they had different fans and IIRC they had more fins on them too. I would try that first. The v2 fans had LESS...
by ReneBMW
Sat Nov 02, 2013 12:00 pm
Forum: Car Audio
Topic: ZPA 0.3 v1 fan issues.
Replies: 11
Views: 5493

Re: ZPA 0.3 v1 fan issues.

Hey! I replaced those current limiting resistors with some of a lower value (51ohm 3 watt wire wound)and I replaced the fans with the original (new) adda fans and now they both work perfectly. Except that the "good" one still kickstarts at a higher rpm, but I don't care. I replaced the pow...
by ReneBMW
Fri Oct 04, 2013 5:29 am
Forum: Car Audio
Topic: Input stage caps. (Dc offset...)
Replies: 10
Views: 5052

Re: Input stage caps. (Dc offset...)

Hey guys! Well, just wanted to share something. Today I recieved some parts to get my last zx475 working. This zx475 I wanted to use as a reference to set bias on all other amps. Turns out that 1.7 mv is a not to high setting, so I set all zx ti like this. While I was at it a tryed some new input tr...
by ReneBMW
Wed Oct 02, 2013 6:59 am
Forum: Car Audio
Topic: Is this acceptable?
Replies: 51
Views: 21775

Re: Is this acceptable?

Have you measured continuity between al the mosfets legs?
These are close to each other so if a tiny piece of wire or solder contacts another leg, you might get problems.
by ReneBMW
Mon Sep 30, 2013 2:39 pm
Forum: Car Audio
Topic: PG Screws for zpa and M series
Replies: 5
Views: 3508

Re: PG Screws for zpa and M series

Does anyone know where to find the plexi screws?
Or what thread those are.
Night be able to get those in the netherlands
by ReneBMW
Mon Sep 30, 2013 12:08 pm
Forum: Car Audio
Topic: Is this acceptable?
Replies: 51
Views: 21775

Re: Is this acceptable?

And, is it working again?
by ReneBMW
Sun Sep 29, 2013 2:49 pm
Forum: Car Audio
Topic: ZPA .03 not doing so well
Replies: 16
Views: 6271

Re: ZPA .03 not doing so well

Just curious...
Wich one is R57??
by ReneBMW
Sun Sep 29, 2013 11:57 am
Forum: Car Audio
Topic: IIRC?
Replies: 12
Views: 5564

Re: IIRC?

Now I'm hungry, thx!
by ReneBMW
Sun Sep 29, 2013 11:54 am
Forum: Car Audio
Topic: ZPA 0.3 v1 fan issues.
Replies: 11
Views: 5493

Re: ZPA 0.3 v1 fan issues.

Hè branz! I allready tested with the fans from my other zpa, no difference. But I don't really care. The fans start working shortly after turn-on, and as long as the work, it's fine. I would like to replace the current limiting resistors to a lower value so the fans get more current, that way they s...
by ReneBMW
Fri Sep 27, 2013 10:43 pm
Forum: Car Audio
Topic: ZPA 0.3 v1 fan issues.
Replies: 11
Views: 5493

Re: ZPA 0.3 v1 fan issues.

You mean those two resistors where the board has discouloured.
Checked those, the turn out fine...
Does anybody have an in repairable zpa? (Guess not...)
Then I can take that board an replace it.
by ReneBMW
Fri Sep 27, 2013 2:52 pm
Forum: Car Audio
Topic: old school 18" strokers
Replies: 18
Views: 6664

Re: old school 18" strokers

Damn, only heard it once, dreamt about it for a long part of my life...
I want one!!
But 12" is enough for me...
by ReneBMW
Fri Sep 27, 2013 2:44 pm
Forum: Car Audio
Topic: ZPA 0.3 v1 fan issues.
Replies: 11
Views: 5493

ZPA 0.3 v1 fan issues.

Hello! As the title says, I got a zpa 0.3 from Italy, not in the best condition, but it doesn't look bad. Took it apart to check for stay wires and to clean the board a bit I see that ther are niche on 8200uf ps caps so I don't have to recap it, but I checked for leakage anyway, but I will replace t...
by ReneBMW
Fri Sep 27, 2013 2:34 pm
Forum: Car Audio
Topic: Input stage caps. (Dc offset...)
Replies: 10
Views: 5052

Re: Input stage caps. (Dc offset...)

Sooooooo, this morning i die some small checking. Checked for shortage once again, to be sure. Checked the replaced powersuply fets (irf3205, these are a bit higher so you have to vile some of the screws (what's the word... Take some material of the screws that hold the plate to the fets, otherwise ...
by ReneBMW
Mon Sep 23, 2013 7:35 am
Forum: Car Audio
Topic: Input stage caps. (Dc offset...)
Replies: 10
Views: 5052

Re: Input stage caps. (Dc offset...)

Hey tricky! Today I checked dc offset again. When I put my fingers on an output, the dc offset goes down, the channel with 30 mv offset went down to 1, 2 mv, just like the "good" channel. I took a small piece of metal and some thermal pass and glued it on the backside to see what happen, e...
by ReneBMW
Sun Sep 22, 2013 6:32 pm
Forum: Car Audio
Topic: Input stage caps. (Dc offset...)
Replies: 10
Views: 5052

Re: Input stage caps. (Dc offset...)

Hey tricky, thanks man, I will try to find some heat sinks tomorow and see if it makes a difference, good one!
by ReneBMW
Sun Sep 22, 2013 5:46 pm
Forum: Car Audio
Topic: Input stage caps. (Dc offset...)
Replies: 10
Views: 5052

Re: Input stage caps. (Dc offset...)

Yeah, I'm glad I fixed this haha, my first amp to repair myself, with some help on info offcourse. Like zeropoint0.5, he gave me part numbers for upgraded fets. I just started a few weeks ago with doing more then only listening to these amps until it broke, and replacing it with another. The info on...
by ReneBMW
Sat Sep 21, 2013 11:26 pm
Forum: Car Audio
Topic: Input stage caps. (Dc offset...)
Replies: 10
Views: 5052

Re: Input stage caps. (Dc offset...)

Hey Eric! Yeah, I measure the offset on the speaker outputs, but I will try measuring on the input ground. But where is it? As for the picture, I only have one where I allready scraped the lacquer of. And it's not that sharp. But I'm pretty sure that there are more titanium 600.2 with the same fault...
by ReneBMW
Sat Sep 21, 2013 1:10 pm
Forum: Car Audio
Topic: Input stage caps. (Dc offset...)
Replies: 10
Views: 5052

Input stage caps. (Dc offset...)

Hello! Soooow, today i fired-up my titanium600.2 on wich I replaced al power transistors and powersuply mosfets with upgraded ones and replaced the power supply capacitors for the recommended Panasonic FCC series 5600uf. It fires up nice, and it plays realy nice! So the work I,ve don on it for now d...
by ReneBMW
Sat Sep 21, 2013 12:50 pm
Forum: Car Audio
Topic: zx450 and 500 cap replacement/checkup
Replies: 1
Views: 1818

Re: zx450 and 500 cap replacement/checkup

Just replace the ps. caps and measure the dc offset Youssef, caps always need to be replaced and can be doen easily bij yourself, if youre just a bit handy...
Dc offset is a good reference for the State your amp is in..
Good luck!
by ReneBMW
Fri Sep 13, 2013 2:21 am
Forum: Car Audio
Topic: REALLY HELP!!! Setting up ZX series amplifiers crossovers.
Replies: 19
Views: 7489

Re: REALLY HELP!!! Setting up ZX series amplifiers crossover

Just sell me one reactor, it Will make things a lot easyer.
Do it step by step and read the manuals, i also find it a bit confusing at times, but i use a dsp, so on my equipment its all bypass, wel, zpa without x-over card is always bypass...
Just start with the front, and take your time