PG RSD 5.25" questions

[tcguy85 10+ year member]

How do you set the gains to 100-150 rms?

a DMM with test tones.

 

[Pl8er 5,000+ posts]

a DMM with test tones.

Doesn't a DMM with test tones only give you the power without clipping? It is still the same wattage, just the signal is not clipped.

or am I wrong? (don't take this as me being a smart ***, I really don't know how to do it and want to learn so I can run my comps with more power)

Also, how much power are you currently running to your comps and for how long have you been doing it? I am running about 80rms but if I bridge I would be running about 150-160. I want the power but I am worried about blowing them.

I do not set my gain with my amp but use my rockford fosgate symmetry (pre-amp).

 

[tcguy85 10+ year member]

Doesn't a DMM with test tones only give you the power without clipping? It is still the same wattage, just the signal is not clipped.
or am I wrong?

you can set the gain to whatever voltage (wattage) you want. my amp can do over 205 watts per channel but i set the gain with a -3db tone to set it to 150watts rms. you can do the math and set the gain to whatever number you want.

 

[Pl8er 5,000+ posts]

you can set the gain to whatever voltage (wattage) you want. my amp can do over 205 watts per channel but i set the gain with a -3db tone to set it to 150watts rms. you can do the math and set the gain to whatever number you want.

Do you know where I can get the calculation?

Thanks for the help //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif I want to run right at 120rms for these.

 

[tcguy85 10+ year member]

Do you know where I can get the calculation?
Thanks for the help //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif I want to run right at 120rms for these.

you take the impedance which is 4 ohms and then you take whatever your desired wattage is and multiply them together, then the square root of that number will be the A/C volts that you want to set your gains to.

so 4 x 120 = 480, then you get the square root of that which is 21.9. so you turn the gain knob while playing a tone until the dmm reads that.

 

[TriXR4Kids 10+ year member]

That's some great advice TC. I'll definitely have to refer back to this when the time comes when I need to set my gains.

And, if anyone has any experience with the PG RSD 5.25s, leave your thoughts on them here!

 

[Pl8er 5,000+ posts]

you take the impedance which is 4 ohms and then you take whatever your desired wattage is and multiply them together, then the square root of that number will be the A/C volts that you want to set your gains to.
so 4 x 120 = 480, then you get the square root of that which is 21.9. so you turn the gain knob while playing a tone until the dmm reads that.

I honestly did not know that!

Thanks for that info! I'll have to give that a try.

How long have you been running your comps on power over 120?

 

[tcguy85 10+ year member]

I honestly did not know that!
Thanks for that info! I'll have to give that a try.

How long have you been running your comps on power over 120?

well i have had them with the gains set to 150 since the day i put them in. they take it just fine. they are never seeing 150 watts anyway since music is dynamic. i think they are most of the time (when i really have them cranked) seeing probably around 80-100 watts. i like having headroom!

 

[Pl8er 5,000+ posts]

well i have had them with the gains set to 150 since the day i put them in. they take it just fine. they are never seeing 150 watts anyway since music is dynamic. i think they are most of the time (when i really have them cranked) seeing probably around 80-100 watts. i like having headroom!

I feel like I am being schooled in amps today (and yesterday).

So my amp is rated at 80rms (from tru while doing the burr-brown upgrade) does this mean that I should just leave it alone? If I bridged it, it would be getting about 150ish rms. Doesn't that mean all the time? Which would end up being a bad thing on the speakers.

 

[tcguy85 10+ year member]

I feel like I am being schooled in amps today (and yesterday).
So my amp is rated at 80rms (from tru while doing the burr-brown upgrade) does this mean that I should just leave it alone? If I bridged it, it would be getting about 150ish rms. Doesn't that mean all the time? Which would end up being a bad thing on the speakers.

nah i'm saying you should bridge it. give them 150 watts per side with the gains set correctly. read the gain setting tutorial on here.

 

[TriXR4Kids 10+ year member]

Just ordered the 6.5s from audiosavings.com for 87.00 shipped //content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif. Im not gonna mess around with this. I read the reviews on here (including yours TC) and I was sold. As for the installation, I'll cross that bridge when I get there.

Very nice install on your Scion by the way, TC. I was thinking about mounting the tweeters in the factory sail panel because I already have some factory tweets there. However, Ive read that the tweets should be placed 6" from the midrange driver, but my sails are about 17" from where the speaker will be in the door. Will this cause imaging problems?

 

[headbussaboi 10+ year member]

Well, I really want the 6.5s, but I live in an apartment...no garage...no tools //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

It can't be that hard. I am in the same position you are. I can make 5.25's fit but I bought 6.5's. No garage, some tools. Watch me make this b!tch fit.

 

[tcguy85 10+ year member]

Just ordered the 6.5s from audiosavings.com for 87.00 shipped //content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif. Im not gonna mess around with this. I read the reviews on here (including yours TC) and I was sold. As for the installation, I'll cross that bridge when I get there.
Very nice install on your Scion by the way, TC. I was thinking about mounting the tweeters in the factory sail panel because I already have some factory tweets there. However, Ive read that the tweets should be placed 6" from the midrange driver, but my sails are about 17" from where the speaker will be in the door. Will this cause imaging problems?

thanks!

i would mount them near the mid. but then again you get the guys who are putting them in the pillar which is way away from the woofer. mine are probably about 6-8 inches away. i never really measured it. it works very well where i have mine though.

 

[tcguy85 10+ year member]

It can't be that hard. I am in the same position you are. I can make 5.25's fit but I bought 6.5's. No garage, some tools. Watch me make this b!tch fit.

thats the spirit! i'm sure you'll get them in there!

 

[TriXR4Kids 10+ year member]

Oh man, Im getting pumped up now! Im taking the stance of: These speakers WILL fit. No more of this I hope they fit nonsense. I'll even rent some tools if I need to!!