Speciþ cations, Standard edition), 20 ampliþ er output – Sunfire True Subwoofer Signature and Standard Version User Manual
Page 20: High cut filter, Frequency response, Power line voltage, Dimensions, Weight, Finish, Line power consumption

User's Manual
20
AmpliÞ er Output
2,700 watts rms (3.3
Ω impedance)
High Cut Filter
35 Hz - 100 Hz adjustable, with a "By-
pass" position.
Frequency Response
18 Hz - 100 Hz
Power Line Voltage
US model
120 VAC 50/60 Hz
International model
230 VAC 50/60 Hz
Dimensions
11" x 11" x 11"
Weight
48 lbs
Finish
High gloss, dark rosewood Þ nish.
Line Power Consumption:
600 watts average, at maximum continu-
ous output. 8 watts at idle. 
2,700 watts peak, time limited basis
Output Levels:
Greater than 110 dB peak SPL (includes 
room gain) from 18 Hz to 80 Hz. Mea-
surement is one meter, anechoic.
A typical SunÞ re subwoofer can be 
ex pect ed to ‘best’ its spec i Þ ed minimum 
peak SPL by several decibels.
Total Harmonic Distortion
Typically less than 1/10 of the fun da -
men tal between 18 to 80 Hz.
Input Sensitivity (full output):
250 mVrms from left input with volume 
control at 0 dB, 60 mVrms volume con-
trol fully clockwise 
*
0.75 Vrms from right input with volume 
control at 0 dB, 200 mVrms volume 
control fully clockwise
*
Input Impedance:
30 k
Ω for Line-Level inputs
56 k
Ω for Hi-Level inputs
40 k
Ω for XLR input, each leg balanced
to ground
XLR Input
Pin 1 Ground
Pin 2 Positive 
Pin 3 Negative
Driver: 10 inch
Extra large magnet and long throw 
me chan i cal design yield very high 
back-emf. The result is ex traor di nar i ly 
high operating efÞ ciency – that is, more 
acoustic output for each watt of input.
Internal System Gain:
50 dB from left input jack to speaker 
with volume control at 0 dB, 62 dB with 
control fully clockwise
*
40 dB from right input jack to speaker 
with volume control at 0 dB, 52 dB with 
control fully clockwise
*
*
The SunÞ re True Sub woof er utilizes 
differential gain on the left and right 
inputs to retain both L+R and L-R 
information. 
12 VDC Trigger Input
Input voltage range: 5 -18 VDC 
Impedance: approx 600 Ω 
(20 mA @ 12 V) 
Removable terminal block, and one 1/8” 
Mono minijack, tip positive.
SpeciÞ cations
(Standard Edition)
© 2004 SunÞ re Corporation.
All rights reserved. SunÞ re Corporation 
re serves the right to improve its products 
at any time. Therefore, speciÞ cations are 
subject to change without notice.
Manual 913-103-00 Rev B
