+ or - in centre of dc on t-amp

pgvpgv333 · 15th February 2006, 01:09 PM

Hi
First posting, maybe dumb, but...
I just got my t-amp. It has a dc output but I dont know if + or- is in the centre of the contact. Also it says you can use a 14 volt transformer, though it says 12 volt in the back. Thankful for help.

sreten · 15th February 2006, 01:26 PM

I believe the power input is AC.

/sreten.

pgvpgv333 · 15th February 2006, 02:03 PM

Well I am kind of new, but it says dc 12 volts under the connection hole on the back. The the question is what is + and - so I dont ruine the thing.

D0Hbert · 15th February 2006, 03:08 PM

Its 12vdc, center is positive.

sreten · 15th February 2006, 03:42 PM

This amp is DC, the cheaper one I think is AC, this one is clearly marked.

A 12V car battery is actually 13.8V, so it should accept 14V.

Note a 14V AC transformer when rectified does not produce 14V DC.

/sreten.

pgvpgv333 · 15th February 2006, 06:04 PM

Ok thanks. If your wrong I will hunt you down no matter what continent your on...
It says in the small manual that you can use 14 volt, but maybe safest not to try it. Thanks again. Time to connect.

nilsomat · 15th February 2006, 08:02 PM

That is wrong!
Also the (original) T-amp is DC 12V, the center is positive!
Greetings,
Nils

Lostcause · 15th February 2006, 08:16 PM

Quote:

Originally posted by nilsomat
That is wrong!
Also the (original) T-amp is DC 12V, the center is positive!
Greetings,
Nils

As the man says.........

DC..DC...DC It is recomended for 13.2V maximum.

Do NOT put AC through it, it WILL fry!!!!

Pano · 15th February 2006, 10:23 PM

Cousin Lostcause is quite correct. DC ONLY!

I had the little SMPS that comes with the Super-T tested. It does very well. Good regulation, low noise, holds 11.98V at its rated 3A. Handles short circuits like a champ.

Maybe I can talk the Sonic guys into selling that power supply for the original Sonic Impact, too.

sreten · 16th February 2006, 08:55 AM

Quote:

Originally posted by pgvpgv333
Ok thanks. If your wrong I will hunt you down no matter what continent your on...
It says in the small manual that you can use 14 volt, but maybe safest not to try it. Thanks again. Time to connect.

Hi,

I'm only going on bits and pieces I've read about running
T-amps off car batteries, and I'm only familiar with the two
amps that parts express sell.

I'll stick by the assertion : anything designed to run off a car
battery will accept 14V dc.( Or it would be in big trouble.)

/sreten.

15th February 2006, 01:09 PM	#1
pgvpgv333 diyAudio Member Join Date: Jan 2006 Location: Uppsala	+ or - in centre of dc on t-amp Hi First posting, maybe dumb, but... I just got my t-amp. It has a dc output but I dont know if + or- is in the centre of the contact. Also it says you can use a 14 volt transformer, though it says 12 volt in the back. Thankful for help.

15th February 2006, 10:23 PM	#9
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	Cousin Lostcause is quite correct. DC ONLY! I had the little SMPS that comes with the Super-T tested. It does very well. Good regulation, low noise, holds 11.98V at its rated 3A. Handles short circuits like a champ. Maybe I can talk the Sonic guys into selling that power supply for the original Sonic Impact, too. __________________ Take the Speaker Voltage Test!

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15th February 2006, 01:26 PM	#2
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	I believe the power input is AC. /sreten.

15th February 2006, 02:03 PM	#3
pgvpgv333 diyAudio Member Join Date: Jan 2006 Location: Uppsala	Well I am kind of new, but it says dc 12 volts under the connection hole on the back. The the question is what is + and - so I dont ruine the thing.

15th February 2006, 03:08 PM	#4
D0Hbert diyAudio Member Join Date: Sep 2004 Location: Manila	Its 12vdc, center is positive.

15th February 2006, 03:42 PM	#5
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	This amp is DC, the cheaper one I think is AC, this one is clearly marked. A 12V car battery is actually 13.8V, so it should accept 14V. Note a 14V AC transformer when rectified does not produce 14V DC. /sreten.

15th February 2006, 06:04 PM	#6
pgvpgv333 diyAudio Member Join Date: Jan 2006 Location: Uppsala	Ok thanks. If your wrong I will hunt you down no matter what continent your on... It says in the small manual that you can use 14 volt, but maybe safest not to try it. Thanks again. Time to connect.

15th February 2006, 08:02 PM	#7
nilsomat diyAudio Member Join Date: Dec 2005 Location: Berlin	That is wrong! Also the (original) T-amp is DC 12V, the center is positive! Greetings, Nils