Setting Gains?
Tourer
Joined: Apr 2007
Posts: 375
Likes: 1
From: Sacramento area
some say yes some say no. I don't do it because the voltage increase is NOT going to create a noticeable difference in sound level. If you're talking about 18" subs with 1200w amp and you're trying to squeeze every little bit of volume you can possibly get out of an amp, then yes..
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
hey both you guys do me a favor please.. hang off on any further adjustments until this evening please. I want to verify a very similar setup using a JVC with 2v outputs and a ss 2.350D. I will measure where both devices clip on a scope, then I'll measure them both with a DMM to see how accurate these readings are vs what ohms law says they should be. I'm also going to test with a couple of different test tones, 1khz and 50hz.
I know DMMs (unless you have something that cost upwards of a couple hundred bucks) can be inaccurate when measuring AC voltage mainly because electricity is most happy at 50-60hz by nature.
Stay tuned gents....
I know DMMs (unless you have something that cost upwards of a couple hundred bucks) can be inaccurate when measuring AC voltage mainly because electricity is most happy at 50-60hz by nature.
Stay tuned gents....
Tourer
Joined: Apr 2007
Posts: 375
Likes: 1
From: Sacramento area
hey both you guys do me a favor please.. Hang off on any further adjustments until this evening please. I want to verify a very similar setup using a jvc with 2v outputs and a ss 2.350d. I will measure where both devices clip on a scope, then i'll measure them both with a dmm to see how accurate these readings are vs what ohms law says they should be. I'm also going to test with a couple of different test tones, 1khz and 50hz.
I know dmms (unless you have something that cost upwards of a couple hundred bucks) can be inaccurate when measuring ac voltage mainly because electricity is most happy at 50-60hz by nature.
Stay tuned gents....
I know dmms (unless you have something that cost upwards of a couple hundred bucks) can be inaccurate when measuring ac voltage mainly because electricity is most happy at 50-60hz by nature.
Stay tuned gents....
10--4
Tourer
Joined: Apr 2007
Posts: 375
Likes: 1
From: Sacramento area
hey both you guys do me a favor please.. hang off on any further adjustments until this evening please. I want to verify a very similar setup using a JVC with 2v outputs and a ss 2.350D. I will measure where both devices clip on a scope, then I'll measure them both with a DMM to see how accurate these readings are vs what ohms law says they should be. I'm also going to test with a couple of different test tones, 1khz and 50hz.
I know DMMs (unless you have something that cost upwards of a couple hundred bucks) can be inaccurate when measuring AC voltage mainly because electricity is most happy at 50-60hz by nature.
Stay tuned gents....
I know DMMs (unless you have something that cost upwards of a couple hundred bucks) can be inaccurate when measuring AC voltage mainly because electricity is most happy at 50-60hz by nature.
Stay tuned gents....
What did you find out with the scope
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
sorry guys.. I didn't get to this last night.. time is very limited for me the next 3 days trying to get my oldest moved into A&M...
Club Member
Joined: Mar 2012
Posts: 887
Likes: 1
From: Spring, Texas
SS PN2.350D
yeah you should be getting a lot more than 11v out of that.
1.) make sure you're on AC voltage
2.) if you're running a stock head unit, 13 bars is where your volume should be when setting gains
3.) make sure all bass and treble are flat
4.) make sure gains are at their lowest setting (all the way counterclockwise)
yeah you should be getting a lot more than 11v out of that.
1.) make sure you're on AC voltage
2.) if you're running a stock head unit, 13 bars is where your volume should be when setting gains
3.) make sure all bass and treble are flat
4.) make sure gains are at their lowest setting (all the way counterclockwise)
I found that just "touching" the DMM probes to the speaker outputs tends to not make good constant contact, especially while trying to adjust the gain with the other hand.
I found that it is more accurate and easier to use the set screw and clamp the probes in the speaker connectors as you would the speaker wires.
This securely connects the probe and it will stay constant while you are fiddling with the volume, gain, ect.
Then repeat the process with the other gain/s.
A little more effort will result in a much easier process to adjust your gains.
