MA t500/1

mike49504 · 6th April 2010, 10:14 PM

I got this amp in for repair the fets are shorted in the amp. They are using irfz46n's with 476 ohm gate resistors and 2n4401 drivers Can i sub the 46n's for a different fet?

Perry Babin · 6th April 2010, 10:28 PM

47 ohm?

You can probably use a sub but the originals are readily available.
INTERNATIONAL RECTIFIER|IRFZ46NPBF|MOSFET | Newark.com

mike49504 · 6th April 2010, 10:32 PM

yeah sorry 47 ohm. I can get the 46's but have nothing in stock right now. And im trying to get a few of theese amps worked on to get them out the door since i have a million things going on right now.

Would the 44's be a good sub or wondering what might be a good sub?

Perry Babin · 6th April 2010, 10:34 PM

The Z44s can't handle as much current.

What do you have in stock?

mike49504 · 7th April 2010, 12:34 AM

wow only thing i have in stock and enough of right now are the irfz48n's

Perry Babin · 7th April 2010, 12:37 AM

Those should be OK.

6th April 2010, 10:14 PM	#1
mike49504 diyAudio Member Join Date: Sep 2006	MA t500/1 I got this amp in for repair the fets are shorted in the amp. They are using irfz46n's with 476 ohm gate resistors and 2n4401 drivers Can i sub the 46n's for a different fet?

6th April 2010, 10:28 PM	#2
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	47 ohm? You can probably use a sub but the originals are readily available. INTERNATIONAL RECTIFIER\|IRFZ46NPBF\|MOSFET \| Newark.com __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

6th April 2010, 10:34 PM	#4
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	The Z44s can't handle as much current. What do you have in stock? __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

7th April 2010, 12:37 AM	#6
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Those should be OK. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

6th April 2010, 10:32 PM	#3
mike49504 diyAudio Member Join Date: Sep 2006	yeah sorry 47 ohm. I can get the 46's but have nothing in stock right now. And im trying to get a few of theese amps worked on to get them out the door since i have a million things going on right now. Would the 44's be a good sub or wondering what might be a good sub?

7th April 2010, 12:34 AM	#5
mike49504 diyAudio Member Join Date: Sep 2006	wow only thing i have in stock and enough of right now are the irfz48n's

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
FS: Ashly XR-1001, Cambridge T500, Parasound P3, SoundEasy v16	twest820	Swap Meet	3	15th April 2010 05:10 AM
rockford fosgate power T500.2 problems	amp it up	Car Audio	4	21st May 2009 04:36 PM
Hello from MA, USA	asvisn	Introductions	1	17th July 2008 10:14 PM
Marantz MA 500 or MA 700 schematic	krishu	Solid State	0	15th March 2004 01:59 PM
Need help with Duncan T500 MosFET Amp.	Hoffmeyer	Solid State	0	13th July 2002 03:25 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read