SPEAKERS, SPEAKERS AND MORE SPEAKERS.. BUT NEED BASS.?

My error: RX-20s on USaudiomart, the other pair on Audiogon...

Dear @audiokinesis :  The main reason to integrates a pair of self sealed ( not vented ) powered subs in true stereo fashion along any passive main speaker in a home audio system is to reduce IMD in the speaker/system and you can achieve that main target only through a high pass filter ( teflon cap. ) like the one @bdp24  advise.

As a fact that's why I'm doing inside my ML 20.6 monobloks.

You can read about that IMD main target along all other advantages that other gentlemans posted here:

https://forum.audiogon.com/discussions/do-you-think-you-need-a-subwoofer/post?postid=310058#310058 

According with a scientific JBL studies the ideal number of subs in a home system is four subs and at least two. The number of subs makes evenly the room/system bass frequency range response.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.

My personal experience with the SVS subs was not good at all. I had multiple failures (all covered under warranty at least), but they just didn’t hold up so I changed brands. But before replacing the subs, I played with a pair of Bryston Middle T’s which had tremendous bass. I liked them so much I decided to just go for the gusto and purchased a used pair of Bryston Model T’s, which are monsters and with monstrous bass out of the 6 bass drivers in the pair. I was so impressed with the Bryston speakers that I decided to purchase two subs from Axiom Audio who builds the Bryston speakers. I really cannot say enough about the performance of the EP800 and the EP500 subs; they use robust linear power supplies with huge torroid transformers and massive capacitors (not switching power supplies as used in most other subs out there). These subs put out the most musical, tight bass I have heard and phasing them is a snap. And after almost a year of constant heavy use, no issues at all (I lost 5 SVS subs inside of 6 months).

Look up Axiom Audios’ website and if the budget permits, go for the dual 12 inch driver EP800 or the single 12 inch driver EP500 (two would do the job nicely) My room is a very large 10,000 cubic feet with an 18 foot vaulted ceiling. One of each works wonders.

I agree with using multiple subs.  I started with one EP500, it was wonderful, then I added in an EP800 and yikes.  At some point, I may add in another EP500 into the mix to really liven things up.

Dear @audiokinesis : "  works best depends on the specific situation. "

Maybe I'm missing something but I just can't imagine any situation in a passive design speakers where subs can't help to lower speakers IMD that comes with additional benefits as lowering the speakers THD and gives the amps to works way better when are liberated from the low bass range even helps to increment the headroom of the amps.

When the system amps are tubes the subs is a vital condition " sen equa non ".

Even the top Sonus Faber that crossover 50hz and 100hz will be benefited if  frequencies from 80hz down are handled by a dedicated woofers/drivers with a dedicated amps designed to cover the low bass range needs of those woofers/drivers externally.

Till today there is no regular amplifiers that its designs fulfill the low bass range and at the same time all the wide frequency range in any audio system.

At least that's what I learned by first hand experiences in my and other audio home room/systems.


R.