GAS MAD A1 Manuel utilisateur

MAD

MADE TO PLAY LOUD

A1-70.2 / A1-70.4

MAD

WE PLAY LOUD!!

We know what you want. You want it LOUD, and that’s

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



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.................................................................................

MAD A1-70.2.....................................................................................

MAD A1-70.4.....................................................................................

Recommended cable sizes...............................................................

FUNCTIONS..............................................................................................

Indicator / HPF / Crossover..............................................................

LPF / Input / Output..........................................................................

Bass EQ / Level / Ground / Remote....................................................

Power / Fuse / Speaker outputs........................................................

HOW TO.........................................................................................................

Install amplier................................................................................

Connect speakers............................................................................

Tweaking & settings.........................................................................

TROUBLESHOOTING......................................................................................

No power..........................................................................................

No sound..........................................................................................

Unwanted noise...............................................................................

Distortion....................................................................................

Protection...................................................................................

WARRANTY & DISPOSAL...............................................................................

THE GAS WORLD...........................................................................................

SAFETY

Make sure to pay attention to the instructions when you see this symbol:

Make sure that your vehicle has a 12 VDC voltage negative ground system, that it can

handle an increased power consumption, and that both the alternator and the power

source are healthy and up to the task.

Don’t install the amplier inside the engine compartment or any other surface that

may be compromised by water or dirt. Your amplier will produce heat so make sure

it’ll have sucient air circulation (4-5cm open space on all sides).

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 are eager to put the amplier to use – take

no shortcuts when installing the cables, make sure that all connectors are protected

and secured, and take your time nding the perfect grounding point.

Don’t drill any holes without checking what lies beneath, and don’t cut anything

without making sure that no important components risk being damaged.

There’s a rst 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 product’s MAD sound, 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.



you read through the manual thoroughly and follow the instructions. Save the

manual for future usage and reference!

UNPACKING

We know you’re excited to dive head rst into installing your new amplier, but before you

do: Make sure that the amplier and all the accessories are included in the packaging.

DIMENSIONS

A1-70.2

A1-70.4

A B C D E

252

312

232

292

195

209

Amplier

(1pc)

Manual

(1pc)

Screws

(4pcs)

Fuses

(1 or 2pcs)

HI input cable

(1pc)

SPECIFICATIONS

We take pride in our work! True, honest specications and power ratings are an important

part of all ampliers. Listening, measuring and engineering are essential parts in our

workshop. That’s how we make sure to bring you an awesome product with NO BULLSH!T.

Component

Topology



Class AB

MAD A1-70.2

Channels Two

Input mode

Power RMS (4 Ohm)*

Bridged Power RMS (4 Ohm)*

Frequency response

Low Pass Filter

High Pass Filter

Power RMS (2 Ohm)*

2 Ch

2x70W

1x220W

15-22000Hz

50-4000Hz

2x105W

S/N ratio (A-weighted)

Bass EQ

>98dB

0-12dB @ 45Hz

Crossover slope

Power/REM voltage

12dB

10-16V

Input sensitivity 0.5-6V

T.H.D

Damping Factor

<0.5%

>130

Power Fuse 1x35A

High level input

RCA line out

Yes/ATO

Yes

CLIP Yes

Bass Remote N/A

Linkable N/A

Component

Topology



Class AB

MAD A1-70.4

Channels Four

Input mode

Power RMS (4 Ohm)*

Bridged Power RMS (4 Ohm)*

Frequency response

Low Pass Filter

High Pass Filter

Power RMS (2 Ohm)*

4 Ch

4x70W

2x220W

15-22000Hz

50-4000Hz

4x105W

S/N ratio (A-weighted)

Bass EQ

>98dB

0-12dB @ 45Hz

Crossover slope

Power/REM voltage

12dB

10-16V

Input sensitivity 0.5-6V

T.H.D

Damping Factor

<0.5%

>130

Power Fuse 2x35A

High level input

RCA line out

Yes/ATO

Yes

CLIP Yes

Bass Remote N/A

Linkable N/A

*Guaranteed Minimum Certied

Power @ 14.4V >1% THD

*Guaranteed Minimum Certied

Power @ 14.4V >1% THD

SPECIFICATIONS

Power cable 8AWG (10mm

Speaker cable

REM cable

4AWG (20mm

14AWG (1,5mm 12AWG (4mm

18AWG (0,75mm 12AWG (4mm

Power cable 4AWG (20mm

Speaker cable

REM cable

4AWG (20mm

14AWG (1,5mm 12AWG (4mm

18AWG (0,75mm 12AWG (4mm

RECOMMENDED MINIMUM SIZE MAX SIZE

MAD A1-70.2

RECOMMENDED MINIMUM SIZE MAX SIZE

MAD A1-70.4

RECOMMENDED CABLE SIZES

The MAD ampliers are made for the people out there who don’t care about the haters, we

are proud to play LOUD! But to play LOUD you need a lot of power, which is why you have

bought this awesome A1 amplier. We know you’re itching to start building your new sound

system, but make sure to read through these pages - so you can get the most out of your

drivers! Take note that the feature placement might differ between the amplier models.

FUNCTIONS

POWER/PROTECT INDICATOR

Example: A1-70.2

POWER - PROTECT.

Power = Glows white

when the amplier is

connected and on.

Protect = Glows red

when the amplier in-

dicates a failure.

If it glows red, read

TROUBLE SHOOTING.

Example: A1-70.2

Follow the HOW

TO instructions

HPF. Limits the output

below selected freq-

uency.

HIGH PASS FILTER

CLIP INDICATOR

Example: A1-70.2

CROSSOVER

MODE. Choose the type

of crossover to use:

High pass, Fullrange or

Low pass setting.

Example: A1-70.2

Follow the HOW

TO instructions

CLIP. When distortion

exceeds 1%, the CLIP

indicator glows orange.

If it glows static, read

HOW TO instructions.

FUNCTIONS

LOW PASS FILTER

LPF. Limits the output

above selected freq-

uency.

Example: A1-70.2

Follow the HOW

TO instructions

HIGH LEVEL INPUT

HI INPUT. Used instead

of low level input/RCA to

connect speaker output

directly to the head unit.

Never use high level

and low level input

at the same time!

Example: A1-70.2

LOW LEVEL OUTPUT

OUTPUT Left - Right.

Send original signal to

a second amplier.

Example: A1-70.2

LOW LEVEL INPUT

INPUT Left - Right.

Connects to your head

unit’s RCA outputs.

Example: A1-70.2

FUNCTIONS

BASS EQ

BASS EQ. Boosts the

bass at 45Hz, Variable

between 0-12dB.

Follow the HOW

TO instructions

Example: A1-70.2

LEVEL (GAIN)

LEVEL. Sync your head

unit’s output signal

with the amplier.

Follow the HOW

TO instructions

Example: A1-70.2Example: A1-70.2

GROUND

GND. Terminal input

connector for ground

cable ( - power cable).

The GND cable must

be in direct contact

to the vehicle chassis

or the power source’s

neg. (-) binding post.

REMOTE

REM. Terminal input

connector for the unit

that controls the turn-

on signal.

Example: A1-70.2

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