Best Bass Amp!

Thanks everyone for the suggestions on the amps & subwoofer layout ideas. Much appreciated! 

Regarding the amps, I have a pair of PSA M700’s already on the Dali Megaline woofers so I will most likely try them when I’m done working on the Kinergetics subs & buy another pair then since I can get them for <$2K new.  I just wish they had an auto on/off feature or always on like the Bel Canto or Wyred 4 Sound amps. I may try a used Krell, Parasound or Bryston someday in the future though since they both have a great reputation for excellent bass.

Regarding the subwoofer layout Distributed Subwoofer Array vs Line Source Vertical Array I don’t pretend to be an expert, but I’m sure each have their pro’s & con’s. Since my room won’t permit DSA arrangement & I’m mostly concerned about the sweetspot vs the whole room getting the best bass. Besides, isn’t twelve 10” woofers better than four 10” woofers for room coupling? I also feel a subwoofer system that matches the height of my 7’ Dali Megalines will blend better together. Also, one of the world’s best speaker system the Infinity IRS uses LSVA & all other high end speaker manufactures do also.

Here’s a link to some very interesting reading about different subwoofer array designs:

https://www.electrovoice.com/binary/wp%20-%20Subwoofer%20Arrays%20v04%20.pdf

BTW- My Kinergetics SW-900 are very rare(only on I’ve ever seen, ever!) vs SW-800. The SW-800’s have five 10” woofers per side & measure 58Tx13Wx16D & are MDF with most oak veneer vs my SW-900’s have six 10” woofer & measure 70Tx13Wx19D are HDF with beautiful walnut veneer. I can’t wait to get them setup!

Advantages of Vertical Line Arrays:

Preventing Drop Off With Distance – A major advantage of a line array system is that you can achieve much more consistent sound levels from the front to the back of the listening area. Line arrays are made up of multiple modules, so by adjusting the physical angle and the amplitude of individual modules, a higher sound level can be projected toward the back of the room than toward the front, resulting in more consistent coverage throughout the space.

Vertical Pattern Control – The taller the line array, the better the control of the vertical coverage of the low frequencies emitted from it. This is important, as it reduces how much sound is sent toward the ceiling, which can cause unwanted reflections back into the listening areas. They can also reduce the amount of sound that leaks onto the stage or chancel area, which in turn, decreases the level of sound regenerated through open mics on stage, thereby cleaning up the overall sound and increasing GBF.

Sound Pressure Level (SPL) Capability – Some line array systems have a large number of drivers inside each cabinet of the array, allowing a single coherent wave front to be produced. Because of all these drivers, line arrays often have the capability of producing a higher SPL than is required, enabling systems to operate well below their stress point. If your church’s worship style requires concert-level sound reinforcement or hosts visiting national acts, the SPL capability of certain line array models can be an advantage.

Noble100, You would be incorrect to assume that I prefer bass quantity over bass quality because I’m using LSVA vs DSA. Quite the contrary, musical accuracy is my main objective(that is why I love my Apogee Studio Grands)otherwise they are plenty of powered boom boxes I would have selected instead. I also stated Noble100 because of my room layout I cannot put subs on every wall in the room for DSA but you choose to ignore that.  Since I also will be using my system for home theater 60% of the time I want the extra capability low distortion woofers when needs for dinosaur stomps. I will be utilizing Dspeaker anti mode 2.0 different EQ curve music/home theater selection for that purpose. Curious, won’t I get much lower distortion at 20hz 115db with LSVA twelve 10” woofers vs DSA four 10” woofers?!

flat4, thanks for the info. Yes, I will post the pics as soon as completed. Unfortunately, the last owner painted them black over the walnut veneer on the SW900’s in which I’m in the process of stripping & refinishing them. Also due to the new larger woofers I need to enlarge the woofer cutouts. Man I can’t wait until they are done & hooked up!

Thanks for the amp suggestions auxinput & mijostyn! I’m sure the Crown & QSC amps would be great for bass but for my application it won’t work since I want a quiet amp with no fan noise(Crown) and way too much power on both. No problem on the XLR connection since that is all I use in my system. Also, with their massive power it will be overkill since I will have so much room coupling due to the multiple drivers. I’m willing to bet my sensitivity will be over 95db SPL @1W. I do value quality over quantity first & foremost. Even thought I do more home theater now,  accurate music sound reproduction is much more important to me vs HT. If it turns out that Class-A/AB amps sound better than Class-D does on the subs, I will use the Class-A/AB amps Nov thru Apr & use the Class-D amps May thru Oct(since it gets so friggin’ hot here in Sacto).