Connect with us

Hi, what are you looking for?

Articles

Do You Need Two Subwoofers?

675849.jpg

One subwoofer is enough for most rooms, but larger rooms can achieve smoother bass response with two subs

If your room has typical dimensions — 20 x 14 x 8 ft., about 2,100 cu. ft. — one well-designed subwoofer with an internal amplifier equal in size to the full output of your receiver (full power for 1 channel + 1/8 power x the number of other channels) and a 10-inch or 12-inch driver should deliver solid deep bass extension and ample output for music and movie soundtracks. On the other hand, if your home theater is larger than usual (4,000 to 8,000 cu. ft. or bigger) or has a vaulted or cathedral ceiling, you should definitely consider running an extra subwoofer. Big rooms, especially the “great rooms” so common in many suburban homes, really devour deep bass, so two subs will generate enough sound pressure to fill the place.

Two subwoofers give you smoother distribution of extended bass over several different listening locations. My colleagues and friends who have large vaulted-ceiling rooms all run dual subs. Taste plays a role as well. If you like your music or soundtracks really loud and deep, go for two subs. If you have a huge room and you want really loud sound and deep bass, then look at physically larger subwoofers with bigger amplifiers, like Axiom Audio’s Epicenter EP600.

There is no specific need for two subwoofers to be identical in terms of brand name or physical size, but don’t use a small, cheap sub with a large, good one. As to setup, try the subwoofers in opposite corners (diagonally) of the room, one in the front and one at the back, with an initial crossover setting of 80 Hz and the rear sub phase switch on 180. If the subs are too boomy in the corners, move them away from the corners along one wall or the other until you get smooth coverage of deep bass from the main seating areas in the room.

Another recommended placement for dual subwoofers is on opposite end walls in the middle of each wall, or on opposite side walls in the middle of each wall. There is no magic formula for subwoofer placement: experiment with locations, because every room is different. But be on the lookout for “nodes,” which are areas in the room where there will be way too much bass, and other areas where you will hear little or none. The idea is to tame these nodes so you get uniform output in most of your important locations. If you have a choice, square rooms are the worst for nodes; irregular or rectangular shapes are preferable, and as you move couches or chairs closer to walls, bass intensity will increase. Conversely, the middle of the room will have less bass intensity.

by Alan Lofft (bio), Axiom Audio

Related Articles
Subwoofer Placement Tips
Subwoofer Basics for Better Bass
“Tight” or “Flabby” Bass: Does It Exist?

Advertisement. Scroll to continue reading.

Click to comment

Leave a Reply

Your email address will not be published.

Advertisement

You May Also Like

New Products

Monoprice adds to its growing Monolith Subwoofer lineup with two in-wall models. Find out what this means for you.

Reviews

We take two RSL Speedwoofer 10S subwoofers for a spin in the home theater and learn excellent bass can be heard for less than...

New Products

Does your movie watching experience suffer from a lack of low end impact? The Monoprice Monolith Dual Driver Subwoofers might change all that.

New Products

The Denon Home Subwoofer integrates with Denon's expanding wireless speaker and soundbar options. Check out the details.

New Products

The Wilson Audio LōKē subwoofer may be small in size, but carries a big price tag. Do you have room under your desk for...

New Products

The SVS In-Wall 3000 Subwoofer will shake up your room with 800-watts RMS of bass pumped into dual 9-inch drivers hidden in your wall.

New Products

The Audioengine S6 Compact Subwoofer is their smallest, but a perfect match for your desktop home office audio system.

New Products

M&K adds three V+ Series models in 10, 12, and 15-inch sizes for 2022. Find out what they have to offer for your home...

Advertisement

ecoustics is a hi-fi and music magazine offering product reviews, podcasts, news and advice for aspiring audiophiles, home theater enthusiasts and headphone hipsters. Read more

Copyright © 1999-2022 ecoustics | Disclaimer: We may earn a commission when you buy through links on our site.