Geddes multiple subwoofer method - 3 subs vice 4

Dear friends: For me exist a critical issue to use DSP for the  high-pass filtering and blend the subs to the mains.

The question is for each one of us way of listening MUSIC. I own thousands of LP's and only hundreds of CD and I really don't care about streaming even that today digital in many ways surpass the analog alternative but due that I listen mainly to LPs I can't contaminates the overall analog signal doing it that pass through a digital domain .

Apples can't mix with oranges at least for me. Main difference between analog and digital and where digital outperforms analog is in the bass range but even that I know that I prefer to stay all the way down to analog but as I said: this is me and only an opinion.

R.

I have never heard streaming come close to analog. I think that redbook sounds better than streaming. Even heard a difference in file types. Until they get a handle on high def. streaming I am not interested.

Rauliruegas,

A good sub is a good sub, JTR is just ugly (I have a mixed theater room, painted black, so no big deal). Not sure THD matters too much as they are all good and far out pace even the largest of speakers. Integration is most important. At any rate they have a trial period so I will see soon. 
 

Not really looking to debate subs, they all perform well but some data from audioholics. The E112 at 105db-ish /25hz has 25% THD and the JTR is 05% at 105db-ish. The perlisten 215 is 3% at the same volume/hz but 3 times the price. Both JTR and Perlisten are digging deep into infrasonics and should just be cruising at 60hz under 100db. Velodynes are nice subs, I have not heard one in 20 years though. 

As for digital vs apologue I think we are talking about crossovers and less so sources. If you want an all analogue system (vinyl) and want to stay that way analogue is the only option but there is not really a way to correct timing. As for digital crossover out of a digital source good implementation should be pretty transparent if everything stays digital and at least as transparent as adding all the parts in analogue options.  In my limited experience both options have been fine and it comes down to the particular piece. 

Dear @james633  : Mainly I'm talking of MUSIC home/system reproduction where the whole frequency range belongs/"lives" through the bass range. As better the bass range in any audio system as better the whole quality MUSIC reproduction levels.

That's why THD in the bass range is just so critical due that high THD levels as the JTR ( that are for HT not MUSIC: ) subs afects all the whole MUSIC frequency range system due that the different bass frequency ranges develops harmonics that has direct influence in the midrange and from here to the HF range.

You are fine with that 5%-10% on THD and no problem with me, it's only that's way to high in frony/against the 0.5% at 120 db in the Velodyne.

We can have a perfect room/system sub blend with a " marvelous " frequency chart but the main issue down there is not that perfect blend but the developed THD level by the subs inside the subs system range at seat position. That's all, it's not about to subs it's about MUSIC reproduction quality level.

Just my way of thinking,

R.