DB Audio T-Rex User manual

T-Rex
Subwoofers
Xtinct
Subwoofers
Karnage 12
Subwoofer
USER GUIDE

T-Rex
Subwoofers
Dear Customer,
Thank you for purchasing this DB Audio Product.
DB Audio is proud to introduce a new series of professional subwoofers designed in
Britain by a team of dedicated engineers our goal is to provide you, our customer,
with the absolute best subwoofer on the market.
T-Rex Series Features:
• High power handling 1000w RMS, 3000w peak power
• Black powder finish die cast basket
• Kevlar woven non-press paper cone with EROM foam surround
• 3” hi-temp 4-layer voice coil
• Double stacked 200 oz magnet
• Mirror- image multi-layer nomex spider
• Chrome finished T-yoke with logo etched
• Dual 2 ohm impedance
• Chrome push terminal
• Rubber gasket
• Robber magnet boot
02

T-Rex Series Specification:
T-Rex Enclosure Design:
10” Subwoofer
Vb ................... 1.00 Cubic Feet
Tun ................... 31Hz F3 27Hz
Port ................... 3"Ø (Diameter) 14.46" Length
Port Velocity ................... 15.64%
Tb ................... 1.148 Cubic Feet
Material ................... 18mm (0.709") MDF
12” Subwoofer - 1
Vb ................... 1.5 Cubic Feet
Tun ................... 29.7Hz F3 28Hz
Port ................... 4"Ø (Diameter) 19.39" Length
Port Velocity ................... 12.71%
Tb ................... 1.80 Cubic Feet
Material ................... 18mm (0.709") MDF
12” Subwoofer - 2
Vb ................... 1.1 Cubic Feet
Tun ................... 32.74Hz F3 32Hz
Port ................... 4"Ø (Diameter) 22.55" Length
Port Velocity ................... 13.95%
Tb ................... 1.418 Cubic Feet
Material ................... 18mm (0.709") MDF
13”
19”
8”
14.88”
14.69”
14.5”
20.76”
10”
18”
16.56”
14.5”
19.65”
8”
16”
16.56”
Model Power
RMS in
Watts
Power
Peak in
Watts
Imp
Dual
ohm
Size
inches
Fs
Hz
Qts Vas
L
Spl
dB
Trex 10
Trex 12
Trex 15
1000
1000
1000
3000
3000
3000
32.5
32.7
29.6
0.27
0.30
0.33
18.20
31.31
69.27
84.3
86.6
88.7
2
2
2
10
12
15
03
These diagrams are for illustration purposes only. All dimensions are approximations. Please refer to speaker size when constructing enclosure.

Xtinct Series Features:
• High power handling 1500 W RMS, 5000 W peak power
• Red finish die-cast basket
• Kevlar woven non-press paper cone with EROM foam surround
• 3” hi-temp 4-layer voice coil
• Triple stacked 300 oz magnet
• Mirror image multi-layer Nomex spider
• 1” ultra-thick top washer
• Dual 2-ohm impedance
• Chrome push terminal
• Rubber gasket
• Rubber magnet boot
04
Xtinct
Subwoofers
Xtinct Series Specification:
Model Power
RMS in
Watts
Power
Peak in
Watts
Imp
Dual
ohm
Size
inches
Fs
Hz
Qts Vas
L
Spl
dB
Xtinct 12
Xtinct 15
1500
1500
5000
5000
32.5
31.3
0.26
0.30
24.68
52.02
87.58
89.02
2
2
12
15

Xtinct Enclosure Design:
12” Subwoofer - 1
Vb ................... 0.9 Cubic Feet
Tun ................... 36Hz F3 34Hz
Port ................... (2x) 3"Ø (Diameter) 26.29" Length
Port Velocity ................... 21.27%
Tb ................... 1.27 Cubic Feet
Material ................... 18mm (0.709") MDF
(Recommended 25mm (1.0") MDF)
14”
16.95”
9”
17”
16.12”
12” Subwoofer - 2
Vb ................... 1.5 Cubic Feet
Tun ................... 33Hz F3 27Hz
Port ................... 4"Ø (Diameter) 14.63" Length
Port Velocity ................... 21.79%
Tb ................... 1.76 Cubic Feet
Material ................... 18mm (0.709") MDF
(Recommended 25mm (1.0") MDF)
14.5”
20.76”
10”
18”
16.56”
15” Subwoofer
Vb ................... 1.1 Cubic Feet
Tun ................... 30.4Hz F3 30Hz
Port ................... (2x) 4"Ø (Diameter) 29.05" Length
Port Velocity ................... 16.21%
Tb ................... 2.725 Cubic Feet
Material ................... 18mm (0.709") MDF
(Recommended 25mm (1.0") MDF)
16.5”
23.35”
11”
21”
19.29”
(Note: If using the recommended 25mm (1") MDF, please add this amount to the enclosure dimensions)
05
These diagrams are for illustration purposes only. All dimensions are approximations. Please refer to speaker size when constructing enclosure.

How to connect your subwoofer
Left Right
This section oers instructions on connecting your
subwoofer in a mono and stereo configuration. Each
side of the voice coil is 2 ohm each. Most amplifiers
are 4 ohm stable in mono. Please connect using
diagrams and descriptions below.
(Note: Please consult your amplifier user guide when connecting)
Connection in Series
Connection in parallel
Connection in parallel using two subs in stereo
06
Speaker Terminal Left -
Positive to Negative to Negative on Amp
Speaker Terminal Right-
Negative to Positive - to Positive on Amp
Connect Left and Right Positives -
Then connect to Positive on Amp
Connect Left and Right Negatives -
Then connect to the Negative on Amp
Connect all speaker Positives to
Positive on Amp
Connect all speaker Negatives to
Negative on Amp

KARNAGE 12 has been developed for extreme use. This is an extremely powerful
subwoofer and not for the faint hearted. If you need a less powerful subwoofer,
we recommend you look at our T-Rex or Xtinct series.
The woofer is Dual 1Ohm, you can wire the subwoofer in many dierent
configurations:
Wiring:
Parallel – 0.50 Ohm Impedance
Connect both Positives together to create one Positive Terminal
Connect both Negatives together to create one Negative Terminal
07
KARNAGE 12
Subwoofers
Dimension Unit
Diameter A
Diameter B
Diameter C
Diameter D
Depth E
Depth F
Depth G
Depth H
Displacement
mm
mm
mm
mm
mm
mm
mm
mm
L
325
303
288
260
127
16
249
287
10.257

This will give you 0.5 Ohm impedance, only use this configuration if you are using 4 or
more KARNAGE Subwoofers. Or is your amplifier is capable of running less than
0.25Ohm in mono.
Series 2Ohm Impedance- recommended
Connect one side of the speaker terminal Positive to the Negative and use this
NEGATIVE connection to the Amplifier.
Connect one side of the speaker terminal Negative to the Positive and use this POSITIVE
connection to the Amplifier.
This configuration will give you 2Ohms. This is what we recommend if using one or two
woofers.
SERIES CONNECTION PARALLEL CONNECTION
Not recommended
Parallel:
Take both Positives from each Terminal
and connect to the Positive on the
Amplifier.
Take both Negatives from each Terminal
Series:
Take the Positive from one Terminal
To the Amplifier. Connect the Negative
to the same Terminal Positive.
Take the Negative from one Terminal
and connect it to the Negative on the
Amplifier.
To the Amplifier. Connect the Positive
To the Negative to the same Terminal.
2 Ohm 0.50 Ohm
08

Karnage Enclosure Design:
Design 1
Internal Volume 62L Tuned to 36hz Use 18mm
MDF or 25mm.
Design is using 18mm MDF, if using 25mm
please adjust dimensions to take account of
the dierence
Front Bae is 2 x 18mm MDF Panels or use 1
x 25mm MDF
Slot Port: W 101.7mm x H 345mm x L 950.20mm
Port1 366.4 x 345mm (1) (A)
Port2 453.8 x 345mm (1) (B)
Port3 130 x 345mm (1) (C)
Enclosure EXTERNAL Dimensions:
H 381mm or 15”
W 711.20 or 28”
D 522.1” or 20.55”
Design 2
Internal Volume 82L Tuned to 28.5hz Use 18mm MDF or 25mm.
Design is using 18mm MDF, if using 25mm please adjust dimensions to take account of
the dierence
Front Bae is 2 x 18mm MDF Panels or use 1 x 25mm MDF
Slot Port: W 101.7mm x H 345mm x L 1162.80mm
Port1 402.3 x 345mm (1)
Port2 580.8 x 345mm (1)
Port3 180 x 345mm (1)
Enclosure EXTERNAL Dimensions:
H 381mm or 15”
W 838.2 or 33”
D 558” or 21.96” 09
Subwoofer mounting hole
A
B
C

Recommended Amplifiers
For further details on recommended amplifiers please visit www.inphaseaudio.co.uk
10
T-Rex Subwoofers
Xtinct Subwoofers
KARNAGE 12 Subwoofers
IPA 3001D Mono @ 1 Ohm
IPA 5001D mono @ 1 Ohm
IPA 7001D mono @ 2 Ohm
VC
config.
VC
parallel
VC in
series
VC in
series
VC in
Parallel
ohm
0.5
2
1
4
Hz
36.4
36.0
37.2
37.1
msqM
47.14
47.14
47.14
47.14
Tm
6.071
13.347
8.783
17.265
6.004
5.091
5.339
4.895
0.524
0.517
0.565
0.585
0.482
0.469
0.511
0.522
dB
85.8
85.8
85.5
85.7
L
21.428
21.218
21.702
21.771
μm/N
67.895
67.231
69.258
68.979
g
281.886
291.042
289.207
297.304
g
270.114
279.270
277.435
285.533
±mm
20
20
20
20
Imp Fs SD BL Qms Qes Qts SPLo Vas Cms Mms Mmd Xmax
In Phase International Ltd, Nottingham NG5 1RF, UK