Mids for front stage paired with peerless hds

[Smondo17 0]

Pioneer 9900 headunit,sundown 100.4, peerless hds tweets, looking for a 7 inch mid that can run up to 1600. Would the sea nextels be my best bet? I may want more midbass if i could.

Edited March 23, 2008 by Smondo17

[JimJ 11]

Nextels, Peerless Exclusives...I'd read Zaph's reviews, to give you a start.

[///M5 2,833]

No real such thing as a best bet. Everything is a trade off. When you say you want more midbass, you mean than your current Excels have? The Nextels can potentially have a little more, but not really all that much. Strange question though if you have the HDS and the Excel why not run them? A 200hz underlap will most likely be beneficial anyways...

[Smondo17 0]

what would you cross them at?

[///M5 2,833]

Start conservative and work way your way down up. 1kHz on the Seas and 1.6k on the HDS. Depending on your playing levels the Excel should be more than fine with a steeper slope up to 1.2 and the HDS down to 1.4k, but they might not need to be that close. It will depend a lot on your environment and what sounds best to you. As a hint, I always underlap my mid/tweet.

[Smondo17 0]

i agree with the underlap because of the way i hear music. i think of it as a chain that i dont want to miss any links. The excels are bothering me because i know they break up easily above 1200 and i dont know how low the peerless will play. the supremos i have now which i want to sell cant play as low and for the price i rather just sell them. i really want to keep the excels bc i think that detailed midrange is worth giving up some midbass.

[Smondo17 0]

Just curious if your headunits filter has a 12db slope and the amp also has a 12db slope does that create a 24db slope?

[Adrian_D 520]

Just curious if your headunits filter has a 12db slope and the amp also has a 12db slope does that create a 24db slope?

I belive you are correct

[johnecon2001 82]

Just curious if your headunits filter has a 12db slope and the amp also has a 12db slope does that create a 24db slope?

I belive you are correct

No, the two slopes just overlap. They're still the same slope percent, they won't add together like a gain cut will.

[Smondo17 0]

hmm whos right? haha

[Acidburn 10]

I'm pretty sure they add together to create the 24 db/octave slope. The HU sends out a 12 db/oct attenuated signal and the amp takes another 12 db/oct off of that. It doesn't know whether that signal is already attenuated or not.

[Smondo17 0]

And one last thing, for a 2 way set up what is the furtherest someone would underlap a tweeter and mid?

[///M5 2,833]

That depends a ton on your whole install. I'd usually start with a 200hz gap between the HP of the tweet and the LP of the mid. Tweak it until it sounds the best. I think you understood underlap to be overlap from above. It is almost always a bad idea to crossover both your drivers at exactly the same frequency and having them overlap is even worse. In your case, I'd start with the Excels at 1kHz and the HDS at 2kHz and move them in, with an arbitrary guess that you will end up at 1.1k on the Excel and 1.4-1.5.k on the HDS. It is going to really depend on your mounting locations and whole install though.

As for the slopes, they can add but that doesn't mean they will. Personally I would never use two crossovers. You might ask why I say they can but don't usually? They would if they were two exactly identical filters, but even using two of the same device doesn't guarantee that.

One other side, if at all possible I am always going to recommend a shallower slope crossover. There is really no need to go to a 24db unless there is something wrong in your install.

[Smondo17 0]

I am hoping to just get a 800prs. just have to convince the parentalsss