Search found 32 matches

by IsakAlexander
Fri May 10, 2013 12:29 pm
Forum: Car Audio
Topic: M44 cap question
Replies: 15
Views: 5350

Re: M44 cap question

I did not solder in the resistors yet due to missing traces... Previous owner removed one of them and took the circuit trace with it :-(
by IsakAlexander
Thu May 09, 2013 10:54 pm
Forum: Car Audio
Topic: M44 cap question
Replies: 15
Views: 5350

Re: M44 cap question

Nichicon FG, 85c only but this amp will never be driven hard ever again ;-) Should have used KA series maybe but I like the gold look on these.
by IsakAlexander
Thu May 09, 2013 10:45 pm
Forum: Car Audio
Topic: zx350
Replies: 16
Views: 5939

Re: zx350

They were all bulging on the top and have had a hard life. I find the Fluke to be quite accurate. I have not measured equivalent series resistance.

Previous owner said he had to have full gain on amp for satisfactory volume.
by IsakAlexander
Thu May 09, 2013 2:01 pm
Forum: Car Audio
Topic: M44 cap question
Replies: 15
Views: 5350

Re: M44 cap question

I went ahead and replaced everything(one 100uf not changed in picture). The blue ones were around 8000uF. Cheap replacements more like 10500ish. Might power it up this weekend. Just need to sort out the missing traces around the burned resistor area. :( http://i132.photobucket.com/albums/q26/IsakAle...
by IsakAlexander
Thu May 09, 2013 1:45 pm
Forum: Car Audio
Topic: zx350
Replies: 16
Views: 5939

Re: zx350

A few pics, it´s nearly ready to power up. :) http://i132.photobucket.com/albums/q26/IsakAlexander/006-21_zps0b4b1673.jpg http://i132.photobucket.com/albums/q26/IsakAlexander/008-16_zpse7bfd6ea.jpg http://i132.photobucket.com/albums/q26/IsakAlexander/004-30_zpsb8c204d8.jpg http://i132.photobucket.co...
by IsakAlexander
Sat Apr 20, 2013 12:30 am
Forum: Car Audio
Topic: What subs to go w/ old M50?
Replies: 16
Views: 11080

Re: What subs to go w/ old M50?

Or Celestion AP or AD, they have canvas surround just like the gti. Should make a SQ ruckus :-D
by IsakAlexander
Fri Apr 19, 2013 12:47 am
Forum: Car Audio
Topic: What subs to go w/ old M50?
Replies: 16
Views: 11080

Re: What subs to go w/ old M50?

A Jbl gti 1200, or a gti 1000 would match up good to this.

Theoretically caculated spl:
gti 1200 93db/w/m @0.5m (1 3/4 cu,ft recommended)
M50 - 1x250w(ish) bridge mode
=123dB spl :P
by IsakAlexander
Tue Apr 16, 2013 10:15 am
Forum: Car Audio
Topic: Fan Replacement on a ZX350
Replies: 18
Views: 7499

The walking dead..

:P So what would be a good choice when it comes to low noise, below: 34.0 dBA ? I never push my amps for long periods of time and this zx350 will only be running a single 12" boston(high sensitivity) in bridge mode. Maybe a pair of mtx black gold 10" later on. I can´t have a leafblower rui...
by IsakAlexander
Tue Apr 16, 2013 9:59 am
Forum: Car Audio
Topic: zx350
Replies: 16
Views: 5939

Re: zx350

Just removed the four 2200uF 16v caps, only one were starting to leak. A question: how do I remove the cap rail circuit board? They have been abused and look terrible so must be changed. A few of the smaller 100uf close by were also in a bad state/cooked. There are three solder points with two pins ...
by IsakAlexander
Tue Apr 16, 2013 4:54 am
Forum: Car Audio
Topic: Servicing a PG 3.0X with new caps/op amps/output transistors
Replies: 12
Views: 6232

Re: Servicing a PG 3.0X with new caps/op amps/output transis

"There is a jumper denoted in my documents W101 and W201 if this jumper is connected it will bypass the crossover section effectively jumpering the signal from the input RCAs before compensation to the input of the gain circuitry at switch 101 which is your high pass low pass switch in front of...
by IsakAlexander
Mon Apr 15, 2013 8:53 am
Forum: Car Audio
Topic: Weird question about a screw on a ZPA 0.5
Replies: 6
Views: 3047

Re: Weird question about a screw on a ZPA 0.5

Very hard to guess but maybe in a hole where it needs to be above the trace so not to ground it.
by IsakAlexander
Mon Apr 15, 2013 12:39 am
Forum: Car Audio
Topic: Servicing a PG 3.0X with new caps/op amps/output transistors
Replies: 12
Views: 6232

Re: Servicing a PG 3.0X with new caps/op amps/output transis

Any chance you could mark where to put the jumpers and cut the circuit trace on your picture? I wouldnt know where to bypass it without a diagram.
by IsakAlexander
Mon Apr 15, 2013 12:34 am
Forum: Car Audio
Topic: Weird question about a screw on a ZPA 0.5
Replies: 6
Views: 3047

Re: Weird question about a screw on a ZPA 0.5

It were probably located at the spot where there is no mark in the gold trace.
by IsakAlexander
Sun Apr 14, 2013 2:59 am
Forum: Car Audio
Topic: Servicing a PG 3.0X with new caps/op amps/output transistors
Replies: 12
Views: 6232

Re: Servicing a PG 3.0X with new caps/op amps/output transis

So one has to choose either low or high pass? Maybe that is why many people arent impressed with these. Should be some way to bypass the xover since my hu does all processing/crossover and I dont need a extra 12db filter in the signal path.
by IsakAlexander
Wed Mar 27, 2013 1:58 am
Forum: Car Audio
Topic: Servicing a PG 3.0X with new caps/op amps/output transistors
Replies: 12
Views: 6232

Re: Servicing a PG 3.0X with new caps/op amps/output transis

The crossover on this, does it work both on amp and xover out connectors? The manual are for the first edition without the xover out and also the cutoff are different fom 30-600 on the first and 15-300hz on the white later model. Lowpass at 15hz seems a bit low :lol:
by IsakAlexander
Thu Mar 21, 2013 12:06 am
Forum: Car Audio
Topic: Sony XM 2100 G amps...
Replies: 18
Views: 7868

Re: Sony XM 2100 G amps...

Dual mono design, less crosstalk maybe? Nice and clean design.
by IsakAlexander
Tue Mar 19, 2013 12:51 pm
Forum: Car Audio
Topic: Servicing a PG 3.0X with new caps/op amps/output transistors
Replies: 12
Views: 6232

Re: Servicing a PG 3.0X with new caps/op amps/output transis

I´ve bought new caps for both of mine. New Panasonic FC for both 1000uf/50v and 1000uf/16v. The original caps had a silver/blue isolation? Can´t remember the type or model :oops:
by IsakAlexander
Tue Mar 19, 2013 11:22 am
Forum: Car Audio
Topic: m44 caps
Replies: 29
Views: 11085

Re: m44 caps

The M44 is coming along nicely. Changed most caps, just missing a 100uF one. I´ll leave the big ones alone for now. 3 new irfz44, green and red led´s(previous owner had removed them???) speaker and power terminal. Original were grey, could not find a grey powerterminal anywhere so changed all of the...
by IsakAlexander
Fri Mar 08, 2013 3:08 pm
Forum: Car Audio
Topic: How "NOT" to install a car amp
Replies: 15
Views: 5948

Re: How "NOT" to install a car amp

Yes I dont mind looking trough old threads and diggin´em up. Why not? Do every forum need a new thread about every little thing. Kind of boring looking trough 597 and 1/2 threads discussing the same. :-)
by IsakAlexander
Fri Mar 08, 2013 12:57 pm
Forum: Car Audio
Topic: Servicing a PG 3.0X with new caps/op amps/output transistors
Replies: 12
Views: 6232

Re: Servicing a PG 3.0X with new caps/op amps/output transis

Is it the one with white cover and logo on?
Post some more updated pics :)
Which type of caps did you use to replace the seven 1000uF/16v?
by IsakAlexander
Fri Mar 08, 2013 11:56 am
Forum: How-To/FAQ
Topic: PG Scanned Literature
Replies: 76
Views: 107745

Re: PG Scanned Literature

Norway. I got the 6.43 installed :D

Ok enough off topic. Just wondering about the prices and which currency.
by IsakAlexander
Fri Mar 08, 2013 11:18 am
Forum: Car Audio
Topic: How "NOT" to install a car amp
Replies: 15
Views: 5948

Re: How "NOT" to install a car amp

BIG PITA to work on these.
I got rid of Rockford Fosgate T8002, giving me headache.
Still have a 150a1, easy repair with old school clamping, and a punch 600.5 which I will try to clamp the sub channel output devices.
by IsakAlexander
Fri Mar 08, 2013 10:04 am
Forum: Car Audio
Topic: m44 caps
Replies: 29
Views: 11085

Re: m44 caps

Could not find 5w resistors from a usa or europeean seller on ebay so went with 180ohm 2w. Will two in parallel be sufficient or must they combined be 5w or higher? Found some nice 10w resistors with aluminum casing but then again only in 180 and they were quite large. Guess I should start a "m...
by IsakAlexander
Thu Mar 07, 2013 3:05 am
Forum: How-To/FAQ
Topic: PG Scanned Literature
Replies: 76
Views: 107745

Re: PG Scanned Literature

Are these prices in dutch guilder?
There is not much info on the 6.43 set, to be found. Looks like you had to purchase the crossover separatly?
by IsakAlexander
Wed Mar 06, 2013 11:26 am
Forum: Car Audio
Topic: blue/purple Sapphire amps
Replies: 19
Views: 9457

Re: blue/purple Sapphire amps

I dont have it in front of me but the white one I got have two 30A fuses and a phoenix gold badge on the fins.