Two subs. not necessarily better than one ...

I have a (wonderful) Alto Pro. TS215 setup. At first I only had one sub. but today I took delivery of a second sub. Funniest thing has happened: all of a sudden, with both subs, my bass (bass guitar, drums, etc.) seem to have lost "punch". I know that may make no sense but trust me I'm not making this up. There is no issue with the system itself i.e. all working perfectly (and I have checked for phase issues and no problem there either). I've a funny feeling that this has to do with the (now) stereo separation of the lower frequencies. A better way to get some info. may be to detail my initial setup, my "now" setup, and my proposed solution.

Initial setup:

Left and right from mixer into sub. (which was placed in the middle) and from there left and right out to each TS215.

"Now" setup:

Left into one sub, right into second sub., from mixer and out from each sub. to each respective left and right TS215.

Proposed (this is the question):

Left and right from mixer into first sub., left and right out from first sub. into left and right of second sub., and from second sub. left and right out to each respective TS215 with the proviso that the High-pass Filer Bypass on the first sub. is enabled.

The proposed above would have the effect of taking back low frequencies to mono and get the "punch" back (and may have to position both subs. centre and next to each other).

I guess the question is: would there be any problem (damage) caused by going into one (first) sub. from the mixer, then out to the next (second) sub., and then out to the TS215's from the second sub. (as I say: the High-pass Filter Bypass on the first sub. would be enabled but disabled on the second sub.)???

Oh and possibly one other thing: if the High-pass Filter Bypass in enabled on a sub. does this mean that the outs on the sub. are effectively nothing more than "passthrough" i.e. sound out is not modified in any way???

Hope the above makes sense!!!

Regards,

Dale.
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  • Hi Dale, Im sorry I cant answer your question but may I ask you..

    I also have a pair of TS215 loud-speakers. I am thinking of buying one of the subwoofers.

    Does the TS215s 15 inch sub-woofer really make a difference? How much bass does it actually add if you dont mind me asking?

    Cheers!
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  • Hi Marc.

    Let me begin by answering my own question:

    Alto Support confirmed (via direct email) that my proposed setup is perfectly alright. And all I can say is "WOW!!!". There is not a day that goes by that I don't marvel at the sound that I've got with this particular setup.

    In answer to your question:

    How much bass does it actually add??? Even with a single sub. the answer is LOADS (and I like LOADS of bass)!!!. And it's "nice" bass too i.e. it's crisp and clear and sharp and accurate (I've had some "mushy" bass in my time so I know the difference only too well). When I only had one sub. I ran that at around 9 'o clock with the cabs. at around 11 'o clock as the bass actually overwhelmed the cabs. to be honest (depending of course on your material and venue). With two subs. connected as above I have to run them both at around 8 'o clock. You don't know what you're missing until you have connected one (or two) of these subs. At high volume it's the type of bass that "kicks you in the gut" (one or two subs.) Truth be told: I think the subs. do a better job of what they were designed for than the cabs. Don't get me wrong: this is the best sound I've ever heard but there's this little issue of the rated output (as per your other message on a another thread that I'm going to reply to shortly).

    And if you need just that little "more" sound then the subs. have an "Extended LF" switch which, when enabled, allows the sub. to play frequencies higher than its crossover frequency. It just gives you a little more mid. and a slightly fuller sound (although I don't really use it I have experimented and it's great).

    I hope that answers your question. if not: just shout and I'll give you more info.

    Lastly (and just to clear up my issue): the "mud" that I got from having two subs. running in stereo was more of a placement issue (placement in the stereo spectrum) rather than a shortcoming of the subs. I've had numerous chats and arguments about this in the last week or two and I remain convinced that bass and kick drum etc. should be center and mono at their core. The bass and kick drum etc. frequencies that "escape" still come out as stereo on the cabs. and that gives a nice balanced stereo fullness to these sounds but at the core they should be center and mono (of course this is also, I guess, a personal preference).

    Regards,

    Dale.
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