Has Anyone Ever Run TWO Identical Pairs of Speakers ?

@onhwy61 

This what the OP has listed in Audio Asylum ... 

Den: Polk RT-2000p's for front, Polk CS-400 with a Dahlquist DQ-LP1 active crossover paired w/18" Hartley subwoofer custom built for Jon Dahlquist for Centre, & two pair of Polk LS f/x speakers - one pair for Dolby side surround and one pair for Dolby rear surround run through two M&K Goliath II subwoofers. And there's more - Effects & Dolby Atmos speakers are two pair of Realistic Minimus 7 speakers - one pair for front effects/Dolby Atmos and one pair for rear effects/ Dolby Atmos. Also use a Cambridge SoundWorks Newton P300HD subwoofer and a Sunfire True Sub MkII - Can you say "SHAKE THE HOUSE?" Alternative front speakers are B&W DM3000's for front, B&W HTM for centre, and B&W Solid Monitors for surrounds; Living Room: Hartley Holton 'A' and Hartley Zodiac speakers (Dynaco Quad adapter). MBR: EPI-100 speakers. Guestroom #1: Wharfdale Diamond speakers (second version) and a pair of AR 7 speakers. Guestroom #2: AR-2a's. Guestroom #3: KLH 22's. Basement: Coral BX-1200 and Coral BX-1000 "Kabuki" grill speakers. Also have two additional pairs of Realistic Minimus 7's (early models) that get used for various projects. Most recent addition: A pair of Polk Monitor 4.6's from the GW for $12 - These are great sounding speakers! My wife's sewing/quilting room has Pioneer SP-FS51-LR front speakers, SP-BS21-LR rear speakers, SP-C21 centre, and TWO SW-8 powered subs - KUDOS to Andrew Jones for champagne quality at a "Night Train Express" price!

Yes, vertical is much better, but you should know how complicated room acoustics get with additional drivers not built to coordinate with one another. You’re introducing a lot of extra energy into the room.

Imagine for a moment that you are trying to spray a garden hose set on "conical" onto a specific spot on your garden. Then, you put another hose just like it next to it -- or atop it. Just think about the kind of water sprays that would result at the intended target. You’d get a lot more water, for sure, but consider the many ways the water sprays would miss the target -- or, more important collide with itself along the way. On a hot day, on a human body or set of plants, none of this would matter very much, but for human ears which are trying to create precise sonic images -- in stereo, no less -- this will create quite a mess.

Every time I have friends over that go gaga over time alignment in speakers, I hook up two identical sets of speakers.


Okay, I don't, but you get the idea.

+1 Stacked Advents. Would be better if ALL drivers are vertically aligned.

I do and I absolutely love them.