98 Lexus ES300 Trying to use stock Sub...
#1
Driver School Candidate
Thread Starter
Join Date: Jul 2012
Location: Canada
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
98 Lexus ES300 Trying to use stock Sub...
Hello,
I recently installed a new headunit and am now trying to use an external amplifier to power the stock subwoofer. I have a Phoenix Gold QX 2180 that Ive had lying around for 10 years. It was my first amplifier and I thought it would be easy to just wire it up considering I already have all the cables necessary.
My problem now is this...Ive just found that it is only 4 Ohm stable (at a Minimum in Bridged Mode) so I cant bridge the connection for this sub. I see from the specs that the Amp is fine in 2 Ohm Stereo Mode.
My question is this...Can I hook up the stock 2 Ohm subwoofer to a single channel on the stereo setting (either Left +/- OR Right +/-) and leave the second channel empty and run it fine? I would have the LP option on and set the x-over frequency? What will this do to my sub? Or will that not work? Is it safe?
The Amp specs are:
4 ohm stereo @ 12/13.8 VDC 40/55 WRMS x 2
2 ohm stereo @ 13.8 VDC 90 WRMS x 2
4 ohm bridged @ 13.8 VDC 180 WRMS x 1
Crossover Frequencies 30Hz to 600Hz
Crossover Slopes 12dB per Octave
Attached is a picture of the connections page of the manual.
Thank you,
I recently installed a new headunit and am now trying to use an external amplifier to power the stock subwoofer. I have a Phoenix Gold QX 2180 that Ive had lying around for 10 years. It was my first amplifier and I thought it would be easy to just wire it up considering I already have all the cables necessary.
My problem now is this...Ive just found that it is only 4 Ohm stable (at a Minimum in Bridged Mode) so I cant bridge the connection for this sub. I see from the specs that the Amp is fine in 2 Ohm Stereo Mode.
My question is this...Can I hook up the stock 2 Ohm subwoofer to a single channel on the stereo setting (either Left +/- OR Right +/-) and leave the second channel empty and run it fine? I would have the LP option on and set the x-over frequency? What will this do to my sub? Or will that not work? Is it safe?
The Amp specs are:
4 ohm stereo @ 12/13.8 VDC 40/55 WRMS x 2
2 ohm stereo @ 13.8 VDC 90 WRMS x 2
4 ohm bridged @ 13.8 VDC 180 WRMS x 1
Crossover Frequencies 30Hz to 600Hz
Crossover Slopes 12dB per Octave
Attached is a picture of the connections page of the manual.
Thank you,
#2
Driver School Candidate
Thread Starter
Join Date: Jul 2012
Location: Canada
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
Thought a of another question.
What is the difference between Left and Right RCA signals for a subwoofer? Will they contain the exact same signal?
If they are difference signals. Can you combine the L and R RCA’s with a joiner and plug into just a single channel? Ie: Left OR Right to get them as a mono signal?
If they are the same: Can I just plug in the Right OR Left channel and run the 2 Ohm sub off a single channel?
Thank you,
What is the difference between Left and Right RCA signals for a subwoofer? Will they contain the exact same signal?
If they are difference signals. Can you combine the L and R RCA’s with a joiner and plug into just a single channel? Ie: Left OR Right to get them as a mono signal?
If they are the same: Can I just plug in the Right OR Left channel and run the 2 Ohm sub off a single channel?
Thank you,
#3
Driver School Candidate
Thread Starter
Join Date: Jul 2012
Location: Canada
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
Hello!
I've been looking around and determined that trying to, "Join" the RCA signals before the amp might damage my amplifier.
Alternatively, I've found that you can buy (or make your own), stereo to Mono converter to place in line before the amp thereby safely combining the signals.
http://www.mcmelectronics.com/conten...eo%20to%20Mono
Is this necessary or as asked before can you just use a single RCA for the subwoofer?
I've been looking around and determined that trying to, "Join" the RCA signals before the amp might damage my amplifier.
Alternatively, I've found that you can buy (or make your own), stereo to Mono converter to place in line before the amp thereby safely combining the signals.
http://www.mcmelectronics.com/conten...eo%20to%20Mono
Is this necessary or as asked before can you just use a single RCA for the subwoofer?
Thread
Thread Starter
Forum
Replies
Last Post
DK Audio
LS - 1st and 2nd Gen (1990-2000)
14
06-10-12 07:49 PM
olddog
Lexus Audio, Video, Security & Electronics
8
10-24-06 07:40 PM
TS1
ES - 1st to 4th Gen (1990-2006)
2
07-25-02 01:02 PM