Need opinion on good 3000+ amp

[Buck 5,000+ posts]

No it isn't and since you're probably never going to go look it up for yourself or just can't wrap your head around the quote I posted, it's simply the ratio of the output impedance of the amp to the impedance at the speaker terminals.

Now go ahead and tell us which two amps you were comparing with your anecdote, what other variables changed, and how you did this A/B comparison?

I may be misspeaking about the exact differences between full and half bridge based amps, but damping factor does matter. I don’t have anything against you, and but I’ve done a good of research related to damping factor specifically and what controls it. I do know that it has to do with the power supplies and half bridge being 1/2 the rail voltage of full bridge, and that seems (IMO) to affect the damping factor. I get output impedance. That’s not the full definition of damping factor and what it does/how it effectively works.

 

[Buck 5,000+ posts]

Amp

Have you tried playing the amp without the bass knob in?

 

[Bobbytwonames 5,000+ posts]

Amp

Once you get wired right you will have to go through the gain setting process again. I would set your gain with your HI @ 80 hz. and getting everything dialed in. Then while listening to bass heavy music you can play with HU crossover at 50 hz., 70 hz., and 80 hz. to see which one you like the best. I personally like 70 hz. with my 4 - 8's.

 

[audiobaun 5,000+ posts]

Times are tough here. Blue Moon? You're rich!

View attachment 40541

Man I would put those down too!! I just grabbed a Revolver Blood and Honey, Its all I got in the fridge atm man. They been in there a while with some Bluemoons starring at my azz for a bit.

 

[hispls 5,000+ posts]

and half bridge being 1/2 the rail voltage of full bridge, and that seems (IMO) to affect the damping factor.

So if a SAZ 3500 is half the rail voltage of NS1 the NS1 has a lower output impedance?

And you're still dodging the questions. If damping factor is important why would you even consider running .5 ohm load? Tell us which two amps you tested side by side with different damping factors and give us some details about the rest of the variables involved.

 

[audiobaun 5,000+ posts]

Get a y-splitter for your rca's. Only use the one input and leave the output side empty.

Nice catch .. I just now saw that as you replied

 

[Bobbytwonames 5,000+ posts]

Man I would put those down too!! I just grabbed a Revolver Blood and Honey, Its all I got in the fridge atm man. They been in there a while with some Bluemoons starring at my azz for a bit.

$10 a twelve pack. Beans and ham in the Crock Pot. I'm in redneck heaven right now. I'm also in a 45' fifth wheel on 2-½ fenced in acres by myself (and my dog).

 

[Bobbytwonames 5,000+ posts]

Nice catch .. I just now saw that as you replied

Been there and did that. I'm not sure it makes a difference but it looks weird have something plugged into your output. Something plugged into your output, get it?

 

[Blackout67]

Get a y-splitter for your rca's. Only use the one input and leave the output side empty.

What does that do

 

[Bobbytwonames 5,000+ posts]

What does that do

It just makes me feel more comfortable knowing that the full subwoofer signal is going into the input. Maybe it's my OCD but it just doesn't look right with something plugged into the output.

 

[Buck 5,000+ posts]

So if a SAZ 3500 is half the rail voltage of NS1 the NS1 has a lower output impedance?

And you're still dodging the questions. If damping factor is important why would you even consider running .5 ohm load? Tell us which two amps you tested side by side with different damping factors and give us some details about the rest of the variables involved.

Sometimes you just wind up there at .5. Some people already have subs set up at .5 and buy an amp that can’t run them; the amp malfunctions. That’s why. I never said I’ve considered buying high damping just to run .5 ohms.

There aren’t any other variables involved. It was only the amps that changed. One amp had a significantly higher damping factor than the other. They were both older amps, but that’s when I started paying attention to damping. One was an audiopipe amp and the other and elemental designs, in my personal own instance. I compared them out of boredom.

I’m not saying that damping factor is a 1:1 ratio to rail voltage. I’m saying the way car audio amps seem to work is related to layout of the amps. From my studying, half bridge amps in the car audio application seem to be more expensive and have higher damping factors than their full bridge counterparts at the same wattage for subs. Speaker impedance changes, and wildly sometimes, and the higher damping amps seem to deal with that better.

 

[audiobaun 5,000+ posts]

$10 a twelve pack. Beans and ham in the Crock Pot. I'm in redneck heaven right now. I'm also in a 45' fifth wheel on 2-½ fenced in acres by myself (and my dog).

View attachment 40542

Im in a 4/2/2/2 Brick on a corner lot tonight, but really enjoy going out to the 35 acres in the 2/1 cabin. Hopefully looking to move there perm. shortly and then to either 60 or 80 acres in a 1/1 this time next year. Be me and my Shollie and picking up a Belgian Malinois later to help keep some Bison together.

 

[Bobbytwonames 5,000+ posts]

So if a SAZ 3500 is half the rail voltage of NS1 the NS1 has a lower output impedance?

And you're still dodging the questions. If damping factor is important why would you even consider running .5 ohm load? Tell us which two amps you tested side by side with different damping factors and give us some details about the rest of the variables involved.

And full bridge amps can do the same wattage @ .5, 1, and 2 ohms. Isn't that and advantage over half bridge amps?

 

[Bobbytwonames 5,000+ posts]

Im in a 4/2/2/2 Brick on a corner lot tonight, but really enjoy going out to the 35 acres in the 2/1 cabin. Hopefully looking to move there perm. shortly and then to either 60 or 80 acres in a 1/1 this time next year. Be me and my Shollie and picking up a Belgian Malinois later to help keep some Bison together.

Nice! My boy Mattingly (named after an old baseball player Don Mattingly) likes his front porch. The 148.9 @ 31 hz. Dodge in the background.

 

[djdilliodon!]

I didn’t read the entire thread but did see the video. With a sub right behind you, be aware that even with a certain xover setting you aren’t totally killing the frequency. It’s still coming through just at a lower amount. Easiest thing to do is set the xover above 120 and play it again. If it’s louder then it may just be all the filtering you will get. If no change, then something is wrong.