GAS MAX S1 User manual

MAX
HARDCORE CAR AUDIO
MAX
S1-12D1/S1-12D2
S1-15D1/S1-15D2 / S1-18D1

WE PLAY LOUD!!
We know what you want. You want it LOUD, and that
is exactly what we do, what we live for. Vibrations,
gut-punches and straight up loud music - that’s what
makes us tick. We won’t dress up in fancy words or
claim to be something we’re not. We are the NO
BULLSH!T car audio brand!
Every single product with the GAS logo on it is born
out of passion, the same that has driven us for two
generations and that will keep us rolling up to your
neighbourhood, winning and pushing the limits for
many generations to come!
It’s up to you to choose your own level of loud, and if
you don’t like what we do that’s OK. You are welcome
back when you’ve had your first true GAS experience.
We don’t exclude, we don’t judge and we do not make
up any excuses for who we are.
We are GAS and we are proud to be LOUD!

TABLE OF CONTENT
SAFETY...................................................................................................
UNPACKING.........................................................................................
DIMENSIONS...............................................................................................
SPECIFICATIONS.................................................................................
MAX S1-6D1......................................................................................
MAX S1-8D1......................................................................................
MAX S1-10D1.....................................................................................
MAX S1-10D2....................................................................................
PERFORMANCE.......................................................................................
Thiele/Small parameters..................................................................
Impedance vs frequency..................................................................
FEATURES................................................................................................
Next level bass.................................................................................
Made to move...................................................................................
Tuned to the extreme.......................................................................
Coolest subwoofer on the block.......................................................
HOW TO.........................................................................................................
Install subwoofer..............................................................................
Build enclosure................................................................................
Do I need polyfill?.............................................................................
TROUBLESHOOTING......................................................................................
No power/sound..............................................................................
Unwanted noise...............................................................................
Distortion.......................................................................................
WARRANTY & DISPOSAL...............................................................................
THE GAS WORLD............................................................................................
3
4
4
5
5
5
6
6
7
7
8
9
9
9
9
9
10
10
12
14
15
15
15
15
16
17

SAFETY
Make sure to pay attention to the instructions when you see this symbol:
Do not expose your new subwoofer to excessive damp or moisture. If the subwoofer is
exposed it might result in electric failure, shock or damage to the product. Servicing
is required when the product has been damaged in any way and/or doesn’t operate
normally. Refer all servicing to qualified service personnel only.
Keep the cables inside the vehicle separate from sharp edges or components that
may be affected or take damage. Follow the recommended cable sizes and always use
high quality cables and accessories. Even if you’re eager to put the subwoofer to use
– take no shortcuts when installing the cables, make sure that all connectors are
protected and secured.
Do not drill any holes without checking what lies beneath, and don’t cut anything
without making sure that no important components risk being damaged.
There is a first time for everything, if you need help - ask a friend or contact your local
GAS AUDIO POWER dealer/installer.
We want you to experience your products to the MAX, but we don’t want you to injure
yourself or others. Use common sense, respect high pressure levels and volume, and
follow your local laws and regulations.
3
NO COMPROMISES! Especially when it comes to safety. Before installing your MAX
S1 series subwoofer, make sure that you read through the manual thoroughly and
follow the instructions. Save the manual for future usage and reference!

UNPACKING
Unboxing your new MAX product is an experience, make sure that the subwoofer and all the
accessories are included in the packaging:
4
S1-12D1/D2
S1-15D1/D2
A
Ø326
Subwoofer
DIMENSIONS
Manual
GF
E
D
mm
mm
A
B
C
B
Ø303
C
Ø6
D
Ø202
E
Ø285
F
187
G
203
Ø396 Ø375 Ø6 Ø202 Ø350 206 222
S1-18D1 mm
Ø470 Ø446 Ø6 Ø202 Ø423 258 275

SPECIFICATIONS
5
Below you’ll find the specifications that has been checked and tested in our workshop. The
specified sensitivity isn’t directly connected with the sound pressure in the vehicle, and
shouldn’t be used as the sole indicator for comparison with other subwoofers.
MAX S1-12D1
Component
Size
Nominal impedance
Power RMS
Freq. response
Voice coil
Voice coil former
Cone
Power MAX
Subwoofer
12” (300mm)
1+1 Ohm
1600W
20-200Hz
Dual 3” PCW
Aluminum
Non-Pressed
Paper
3200W
Dustcap 3D IMPP
Basket
Magnet
Aluminum
T-bone
2x100oz
HQ Ferrite
Suspension High roll foam
w. dual stitch
Spider Dual Nomex
Weight 13.2 KG
Tinsel Dual silver
coated leads
Terminal Heavy duty
push terminals
MAX S1-12D2
Component
Size
Nominal impedance
Power RMS
Freq. response
Voice coil
Voice coil former
Cone
Power MAX
Subwoofer
12” (300mm)
2+2 Ohm
1600W
20-200Hz
Dual 3” PCW
Aluminum
Non-Pressed
Paper
3200W
Dustcap 3D IMPP
Basket
Magnet
Aluminum
T-bone
2x100oz
HQ Ferrite
Suspension High roll foam
w. dual stitch
Spider Dual Nomex
Weight 13.2 KG
Tinsel Dual silver
coated leads
Terminal Heavy duty
push terminals

SPECIFICATIONS
6
MAX S1-15D1
Component
Size
Nominal impedance
Power RMS
Freq. response
Voice coil
Voice coil former
Cone
Power MAX
Subwoofer
15” (380mm)
1+1 Ohm
1600W
20-200Hz
Dual 3” PCW
Aluminum
Non-Pressed
Paper
3200W
Dustcap 3D IMPP
Basket
Magnet
Aluminum
T-bone
2x100oz
HQ Ferrite
Suspension High roll foam
w. dual stitch
Spider Dual Nomex
Weight 14.6 KG
Tinsel Dual silver
coated leads
Terminal Heavy duty
push terminals
MAX S1-15D2
Component
Size
Nominal impedance
Power RMS
Freq. response
Voice coil
Voice coil former
Cone
Power MAX
Subwoofer
15” (380mm)
2+2 Ohm
1600W
20-200Hz
Dual 3” PCW
Aluminum
Non-Pressed
Paper
3200W
Dustcap 3D IMPP
Basket
Magnet
Aluminum
T-bone
2x100oz
HQ Ferrite
Suspension High roll foam
w. dual stitch
Spider Dual Nomex
Weight 14.6 KG
Tinsel Dual silver
coated leads
Terminal Heavy duty
push terminals

SPECIFICATIONS
7
MAX S1-18D1
Component
Size
Nominal impedance
Power RMS
Freq. response
Voice coil
Voice coil former
Cone
Power MAX
Subwoofer
18” (460mm)
1+1 Ohm
1800W
18-200Hz
Dual 3” PCW
Aluminum
Non-Pressed
Paper
3600W
Dustcap 3D IMPP
Basket
Magnet
HD Aluminum
2x100oz
HQ Ferrite
Suspension High roll foam
w. dual stitch
Spider Dual Nomex
Weight 15.3 KG
Tinsel Dual silver
coated leads
Terminal Heavy duty
push terminals

PERFORMANCE
8
THIELE/SMALL PARAMETERS
Impedance 1+1 Ohm
1.8 Ohm
Fs
Qms
27.4Hz
5.81
Re
0.53
0.48
Vas 33.4 L
Qts
Qes
S1-12D1
2+2 Ohm
3.8 Ohm
25.6Hz
6.15
0.52
0.48
33.4 L
S1-12D2
Sd (cm²) 530
345.8 g
Le
Xmax
1.17mH
40mm
Mms
84dB 1W/1M
13.9
Driver Vol.
Displacement 3.1 L
Bl
dB/SPL
530
391.7 g
3.13mH
40mm
83dB 1W/1M
22.3
3.1 L
Impedance 1+1 Ohm
1.8 Ohm
Fs
Qms
25.5Hz
5.99
Re
0.54
0.49
Vas 76.3 L
Qts
Qes
S1-15D1
2+2 Ohm
3.8 Ohm
24.4Hz
6.33
0.58
0.53
79.7 L
S1-15D2
Sd (cm²) 829
451.8 g
Le
Xmax
1.2mH
40mm
Mms
86dB 1W/1M
14.6
Driver Vol.
Displacement 4.1 L
Bl
dB/SPL
829
468.2 g
3.14mH
40mm
85dB 1W/1M
22.2
4.1 L

PERFORMANCE
9
THIELE/SMALL PARAMETERS
Impedance 1+1 Ohm
1.8 Ohm
Fs
Qms
24.4Hz
6.01
Re
0.55
0.50
Vas 140.1 L
Qts
Qes
S1-18D1
Sd (cm²) 1194
578.5 g
Le
Xmax
1.19mH
40mm
Mms
88dB 1W/1M
16.4
Driver Vol.
Displacement 5.9 L
Bl
dB/SPL

10
PERFORMANCE
IMPEDANCE VS FREQUENCY
1
5
50
5 10 100 200 1K 2K
Ohm
Hz
30
40
5020
10
15
20
500
S1-12D2
S1-12D1
1
5
50
5 10 100 200 1K 2K
Ohm
Hz
30
40
5020
10
15
20
500
S1-15D2
S1-15D1

11
PERFORMANCE
IMPEDANCE VS FREQUENCY
1
5
50
5 10 100 200 1K 2K
Ohm
Hz
30
40
5020
10
15
20
500
S1-18D1

12
FEATURES
If you have this in your hand, you have finally made it. Congratulations! You are ready to take
the next step, to enter a world of NO COMPROMISES with a subwoofer that will take your car
to a whole new level. So get out there and impress the non-believers! Show them that true
dedication comes from the inside of your trunk and that “good enough” just doesn’t cut it.
NEXT LEVEL BASS
A MAX subwoofer is designed to test the limits and match your dedication in performance
and style. Made for the hardcore bass heads out there - with a rigid and durable cone made
by non-pressed paper with Mica minerals that perfectly balances awesome power, weight
and musicality.
MADE TO MOVE
The dust cap is made of IMPP for a unique 3D design, an idea we borrowed from the MAD S2
series. But since this is MAX, we took it one step further. With an impressive high roll foam
suspension, you get even more awesome cone movement. The 3-inch dual voice coil wire is
made of PCW (Pure Copper Wire) and we’ve introduced a bumped back plate for some extra
mechanical Xmax, which also minimizes the risk of voice coil damage.
TUNED TO THE EXTREME
The MAX S1 subwoofers will let everyone know that your audio dedication is real. No detail
has been overseen, and no compromises have been made. We show our dedication to the
craft of bass with dual stacked HQ ferrite magnets to achieve an insane amount of motor in
the subwoofer. We’ve also added a Dual Nomex spider and dual stitching for extra durability,
to make sure that the last thing standing will be your sound system. This subwoofer is extre-
me and over the top, as it should be!
COOLEST SUBWOOFER ON THE BLOCK
The MAX S1 will show everyone that you have reached the next level, the MAX level. Having a
subwoofer perform at this level demands extremely good ventilation. Only the best and
beyond is good enough! We solved the cooling in two different ways. The material in the
top/back plate is thicker for optimal heat conduction, and the implemented DVS2 (Dual
Ventilation System) creates incredible heat dissipation while also reducing distortion.

13
HOW TO
INSTALL SUBWOOFER
The MAX S1-12D1/S1-15D1/S1-18D1 uses dual 1 Ohm voice coils, while the MAX S1-12D2
/S1-15D2 uses dual 2 Ohm voice coils. If you want to connect two or more S1 series sub-
woofers, you can vary the impedance by altering the wiring configuration to use a series,
parallel or series-parallel setup. The more the merrier!
Before installing your brand new subwoofer, make sure that you have everything you need.
Have the right tools ready, and make sure that you have the necessary knowledge/skill to
perform the installation properly. Preparation and knowledge is crucial!
Make sure to look through the recommended wiring schematics below and choose the
setup that corresponds with the number of subwoofers in your sound system. Take note of
the impedance stability of your amplifier. Don’t be afraid to consult your local GAS AUDIO
POWER dealer/installer if you have any questions.
One 1+1 Ohm
subwoofer @ 2 Ohm
Two 1+1 Ohm
subwoofer @ 1 Ohm
It is important to
know the limits of
your amplifier. Be sure
to connect your sound
system with a suitable
impedance to optimize
your sound system.

14
HOW TO
One 2+2 Ohm
subwoofer @ 1 Ohm
Two 2+2 Ohm
subwoofer @ 2 Ohm
One 2+2 Ohm
subwoofer @ 4 Ohm
It is important to
know the limits of
your amplifier. Be sure
to connect your sound
system with a suitable
impedance to optimize
your sound system.

15
BUILD ENCLOSURE
If you want a LOUD and awesome looking sound system, you should mount your MAX
subwoofer in an enclosure. Here’s information about optimized volumes for different types
of enclosures and how they perform with the MAX S1 subwoofer. If you feel unsure about
how to build an enclosure on your own, consult a local GAS AUDIO POWER dealer/installer.
HOW TO
dB
6
0
-6
-12
-18
-24
-30
-36
Hz5 10 50 100 500 1K 5K 10K 20K
VENTED SPL 50L
VENTED 45L
SEALED 25L
SEALED
VENTED
25L* 0.67 x x x Medium
45L* 33Hz x 38Hz Slot 1100mm² 510mm Mini
F3 QTC FB PORT LENGTH POLYFILL
VOLUME
50L* 36Hz x 45Hz Slot 1300mm² 360mm x
48Hz
VENTED SPL
* Driver displacement volume included
MAX S1-12D1/D2:
SEALED VENTED

16
HOW TO
dB
6
0
-6
-12
-18
-24
-30
-36
Hz5 10 50 100 500 1K 5K 10K 20K
12
SEALED 55L
VENTED 96L
VENTED SPL 131L
SEALED
VENTED
55L* 0.67 x x x Medium
96L* 29Hz x 38Hz 1x6” (155mm) 310mm Min
F3 QTC FB PORT LENGTH POLYFILL
VOLUME
131L* 32Hz x 40Hz Slot 2040mm² 200mm x
42Hz
VENTED SPL
* Driver displacement volume included
MAX S1-15D1/D2:
SEALED
VENTED
85L* 0.72 x x x Medium
127L* 28Hz x 30Hz Slot 2000mm² 450mm Min
F3 QTC FB PORT LENGTH POLYFILL
VOLUME
154L* 30Hz x 36Hz Slot 4000mm² 560mm x
39Hz
VENTED SPL
* Driver displacement volume included
MAX S1-18D1:

17
HOW TO
DO I NEED POLYFILL?
Hell yeah! We recommend using polyfill for all sealed, vented and bandpass enclosures for
the best overall performance.
A polyfilled enclosure will bring out the full potential of your subwoofer, by starting an
isothermal process when energy flows through the fibers (very scientific). This means that
the air gets more dense, so it lessens the BOOM and brings out the BASS! It can also reduce
harmonic distortion. Sounds complicated, we know. But it's easy to do! Cover two sides in a
ported enclosure or make a loose polyfill ball behind the driver in a sealed enclosure. Try it
out! If you like the bass to hit harder - just take away some. Do you want to lessen the effect?
Put in some more.
dB
6
0
-6
-12
-18
-24
-30
-36
Hz5 10 50 100 500 1K 5K 10K 20K
12
SEALED 85L
VENTED 127L
VENTED SPL 154L
MAX S1-18D1:

18
TROUBLESHOOTING
NO POWER/SOUND
Check the subwoofer to make sure it isn’t damaged. If your subwoofer doesn’t get any
power, the most common issue is either in the wiring or in the amplifier. Use a multimeter to
measure the amplifier’s voltage on the +12V terminal and the remote signal terminal. Use a
multimeter to make sure that you have a negative ground connection. Check the built-in
fuse (if there’s one) on the amplifier. If there’s no power coming through – control the fuse
on the power cable. If this is intact - make a full check of the wiring to ensure cable integrity.
Check all the speakers connected to your sound system. Check all the speaker cables and all
the signal cables. Check your head unit to make sure no settings are limiting the amplifier’s
functions or the subwoofer. When all of the above has been tested/looked over, and all is as
it should be but there’s still no sound, consult your local GAS dealer.
UNWANTED NOISE
Start by looking over the subwoofer and other speakers in the sound system so there is no
damage or connection issue with the wiring. Make sure that your signal cables or speaker
cables aren’t too close to the power cables. Check your amplifier’s grounding point and
make sure that the surface is clean. When all of the above has been tested/looked over, and
the unwanted noise does not vanish, consult your local GAS dealer
DISTORTION
Start by looking over the subwoofer and other speakers in the sound system so there’s no
damage or connection issue with the wiring. Check the speaker cables to make sure that
the polarity isn’t reversed on one channel. Check the settings on the amplifier, make sure
that the gain/level is set according to the amplifier’s instructions. If your amplifier has a
boost function, lower its effect or turn it off.

16
This product is covered by warranty, depending on the conditions in the country where it’s
sold. If the subwoofer is returned for service, please include the original dated receipt (or a
copy) with the product. Make sure that the subwoofer is packaged properly and secured,
preferably in its original packaging.
This product has been granted with the CE certification mark to show that the product
follows the health, safety, and environmental protection standards for products sold
within the European Economic Area (EEA).
The crossed-out wheelie bin symbol means that the product, literature and packaging
included must be taken to separate collection at the end of their working life. Don’t
dispose of these products as unsorted municipal waste: take them for recycling. For
info on your nearest recycling point, check with your local waste authority.
GAS Audio Power products comply with the relevant pro-
visions of the RoHS Directive for the European Union. In
common with all Electrical and Electronic Equipment (EEE)
the product shouldn’t be disposed of as household waste.
Alternative arrangements may apply in other jurisdictions.
GAS Audio Power is a global partner of the European Mobile
Media Association, an organization that focus on promoting
the custom made mobile media installations to consumers.
WARRANTY & DISPOSAL