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Chapter 9
Advanced Features: Room Compensation
In typical home theaters a phenomenon known as ―room gain” can play a
major role in how accurately bass is produced.
When any subwoofer produces notable bass energy below 27Hz, the output
you will perceive is different than the sub’s normal output would be (if unaf-
fected by your room’s walls).
The difference in theoretical bass, versus actual bass response, is depicted in
the graph below. The red trace indicates a subwoofer response outdoors, but
line in blue indicates the same subwoofer’s response in a mid-sized room.
―Room gain‖ can create excessive deep bass which can sound exaggerated
simply due to interaction with your room .
Use the below chart to help tailor your SVS sub to your room’s size. Vary the
room size knob up or down one size should you determine that sound’s best
for your music and movies. Bypass mode is deepest of all and most suitable
for the largest rooms.
Person: Jim Farina
Company: SV Sound, LLC
Project: Room Compensation
File: Room Compensation.led
Jul 18, 2006
Tue 4:42 pm
Enclosure
Shop
5.2.0.350 Jul/15/2005
Notes Map
6: Anechoic
7: 2800ft^3
10 Hz 20 30 40 50 60 70 80 90 100
dBSPL
55
60
65
70
75
80
85
90
95
100
105
110
115
SPL vs Freq
Approximate Room Size Room Compensation Setting
> 2400ft
3
(68m
3
)
LARGE
1400ft
3
– 2400ft
3
(40m
3
– 68m
3
)
MEDIUM
< 1400ft
3
(40m
3
)
SMALL