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7.1.4 basement HT build
#430150 09/29/18 06:09 PM
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bman84 Offline OP
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Pulling the trigger on a new 7.1.4 HT setup for my basement in the next few days. Room dimensions are about 23' long, 13' wide, with 7.5' ceilings. My wife doesn't like to see speakers, so i'll be going in-wall as much as possible. Any issues with these selections?

  • Fronts: M5HP In-wall
  • Center: VP180 (Standard)
  • Sub: EP500
  • Surrounds: M3 In-Wall
  • Overhead: M3 In-ceiling
  • Receiver: AVR-X4400H (powering surrounds/ceiling)
  • Amp: ADA1000 3-channel (powering L/C/R)
  • TV: Vizio P-series Quantum 65" (if they ever show up in Canada)



Last edited by bman84; 09/29/18 06:10 PM.

Axiom M5HP VP160 M3 ADA1000
Anthem MRX 720
SVS SB-3000 (dual)
Re: 7.1.4 basement HT build
bman84 #430151 09/29/18 06:22 PM
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You don't need the 180. You won't miss anything with the 160v4. You can also get that in an in-wall.

As for your in-wall constraint, poor you!


A-LFR/1000-8 & 2/500v4x2
1000-3,1500-3
100,160,QS10x2,800,M5x2,M2/3/50v4
Air Force, Freedom
had v2
Re: 7.1.4 basement HT build
Mojo #430152 09/29/18 06:36 PM
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Originally Posted By Mojo
You don't need the 180. You won't miss anything with the 160v4. You can also get that in an in-wall.

As for your in-wall constraint, poor you!


Thanks. 180 is shorter, which allows it to fit better below my tv. I've only got about 60" of vertical to work with to fit the tv stand, center channel, and tv.

Is the 180 a bad match for the rest of the setup?


Axiom M5HP VP160 M3 ADA1000
Anthem MRX 720
SVS SB-3000 (dual)
Re: 7.1.4 basement HT build
bman84 #430155 09/29/18 06:57 PM
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I see. No, sonically it's a great match.


A-LFR/1000-8 & 2/500v4x2
1000-3,1500-3
100,160,QS10x2,800,M5x2,M2/3/50v4
Air Force, Freedom
had v2
Re: 7.1.4 basement HT build
Mojo #430157 09/29/18 07:15 PM
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Originally Posted By Mojo
I see. No, sonically it's a great match.


Awesome. As an added bonus, the 180 is 4-ohm as well. I'm assuming there's no issue for a single amp to drive 8-ohm loads on 2 channels, and a 4-ohm load on a third channel?

On the numbers side, it's only $72 more for me to get the 180 over the 160 (180 happens to push me into the next loyalty discount tier).

Last edited by bman84; 09/29/18 07:20 PM.

Axiom M5HP VP160 M3 ADA1000
Anthem MRX 720
SVS SB-3000 (dual)
Re: 7.1.4 basement HT build
bman84 #430159 09/29/18 08:05 PM
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There's certainly no issue with the ADA amps to drive differing impedances for any Axiom speakers.


A-LFR/1000-8 & 2/500v4x2
1000-3,1500-3
100,160,QS10x2,800,M5x2,M2/3/50v4
Air Force, Freedom
had v2
Re: 7.1.4 basement HT build
bman84 #430160 09/29/18 08:05 PM
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Nice. You may have some issues with in-ceiling overheads for such a low ceiling. My ceiling is about 7ft 9in, and it was tricky getting Atmos dialed in. I have a "soundproofed" room, so I wanted as few of holes in my double drywall with GreenGlue ceiling, and that was suspended on a whisper clip & hat channel isolation system that made it nearly impossible to find the right locations without hitting a joist or hat channel to put a speaker up into the ceiling.

So I had to go with non-in-ceiling speakers. I went with on-wall M3s that the fronts were mounted using Axiom Full Metal Brackets so that I could angle them toward the listening area due to the low ceiling. The rear overheads (also on-wall M3s) were mounted on just a basic wood block that was cut to give them an angle towards the listening area more as well.

That was all in the plan, but I spent weeks tinkering before I decided to relocate them completely and start over. That is a big challenge with in-ceiling speakers unless you are good with drywall repair.

So your speaker choices are nice, but your room may be your arch enemy for the overhead speaker placement.

The good thing is that the in-ceiling M3s have an aimable tweeter which helps with better alignment for low ceiling Atmos, but still not a great situation.

Outside of the low ceiling problem, your room size is nice. In fact all of your dimensions are close to mine. Mine is 14 feet wide x 24 feet long x 7.75 tall.


Farewell - June 4, 2020
Re: 7.1.4 basement HT build
nickbuol #430161 09/29/18 08:15 PM
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bman84 Offline OP
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Originally Posted By nickbuol
Nice. You may have some issues with in-ceiling overheads for such a low ceiling. My ceiling is about 7ft 9in, and it was tricky getting Atmos dialed in. I have a "soundproofed" room, so I wanted as few of holes in my double drywall with GreenGlue ceiling, and that was suspended on a whisper clip & hat channel isolation system that made it nearly impossible to find the right locations without hitting a joist or hat channel to put a speaker up into the ceiling.

So I had to go with non-in-ceiling speakers. I went with on-wall M3s that the fronts were mounted using Axiom Full Metal Brackets so that I could angle them toward the listening area due to the low ceiling. The rear overheads (also on-wall M3s) were mounted on just a basic wood block that was cut to give them an angle towards the listening area more as well.

That was all in the plan, but I spent weeks tinkering before I decided to relocate them completely and start over. That is a big challenge with in-ceiling speakers unless you are good with drywall repair.

So your speaker choices are nice, but your room may be your arch enemy for the overhead speaker placement.

The good thing is that the in-ceiling M3s have an aimable tweeter which helps with better alignment for low ceiling Atmos, but still not a great situation.

Outside of the low ceiling problem, your room size is nice. In fact all of your dimensions are close to mine. Mine is 14 feet wide x 24 feet long x 7.75 tall.


Great info, thanks! I'm starting out with an unfinished space, so I'm hoping to be able to scope it all out beforehand. My ceiling joists run the width of the space, which helps.


Axiom M5HP VP160 M3 ADA1000
Anthem MRX 720
SVS SB-3000 (dual)
Re: 7.1.4 basement HT build
Mojo #430179 09/30/18 02:59 PM
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bman84 Offline OP
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Originally Posted By Mojo
You don't need the 180. You won't miss anything with the 160v4. You can also get that in an in-wall.

As for your in-wall constraint, poor you!


Thoughts on the VP160 mini? If I go with the VP160 instead of VP180, I'd likely have to put it below the tv in media cabinet. Fitting the full-width VP160 would be a struggle in there.

While the VP180 would be cool, but it's such a beast that my wife would likely freak. I also prefer the idea of the more central, tightly focused output from the VP160.

With the VP160 mini, it would cost a whopping $77 to upgrade to the 6.5" High Powered woofers (a match to the woofers in the M5HP in-walls that I'm using on the left and right).

Last edited by bman84; 09/30/18 03:29 PM.

Axiom M5HP VP160 M3 ADA1000
Anthem MRX 720
SVS SB-3000 (dual)
Re: 7.1.4 basement HT build
bman84 #430180 09/30/18 03:31 PM
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Sorry but I have no experience with the mini and can't even hazard an educated guess. It's design is acoustic suspension so I'd be concerned it sounds congested. But you know what? If you think it sucks, there's always the other options.

Too bad you can't find a way to make an M5 work as a centre.

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