Flat Sub 25 - Subwoofer MAC AUDIO - Free user manual and instructions

Product Type	Subwoofer
Brand	MAC AUDIO
Model	Flat Sub 25
Driver Size	250 mm
Driver Material	Aluminium cone with voice coil ventilation and long-throw surround
Enclosure Material	Low resonance aluminium die-cast
Max Power Output	500 W (sine burst 2:8, 1 kHz at 14.4 V)
RMS Power Output	180 W (DIN 45 324 at 14.4 V)
Frequency Response	25 – 200 Hz
Supply Voltage	12 V (negative ground)
Input Sensitivity (Low Level)	0.2 – 5.5 V
Input Sensitivity (High Level)	0.5 – 10 V
Input Impedance (Low Level)	20 kOhm
Input Impedance (High Level)	100 Ohm
Fuse Rating	30 A
Dimensions (W x H x D)	354 x 78 x 259 mm
Weight	5.1 kg
Inputs	Stereo RCA (line level) and high-level (speaker level) inputs
Automatic Switch-On	Via DC offset / remote signal
Low Pass Filter	Variable 40 – 200 Hz, 12 dB/octave
Bass Boost	Variable 0 – 12 dB at 45 Hz
Phase Switch	0° / 180°
Remote Volume Control	Included
Mounting Material	Included
Article Number	110 4425
EAN	40 23037 04425 6
Maintenance & Cleaning	Clean the exterior with a soft, dry cloth. Ensure ventilation slots are unobstructed. Do not use liquids or aerosols.
Safety Precautions	Use only with 12 V DC negative ground systems. Disconnect battery before installation. Avoid short circuits. Do not operate with damaged wiring.
Spare Parts & Repairability	Contact authorized dealer for replacement parts. Repairs should be carried out by qualified service personnel. No user-serviceable parts inside.

Frequently Asked Questions - Flat Sub 25 MAC AUDIO

How do I connect the Flat Sub 25 to my car stereo?

You can connect using stereo RCA inputs (line level) or high-level inputs (speaker level). The subwoofer automatically switches on via DC offset or remote signal. Ensure the power supply is 12 V negative ground.

What is the power output of the Flat Sub 25?

The maximum power output is 500 W (sine burst), and the RMS power output is 180 W (DIN standard).

What are the dimensions of the subwoofer?

The dimensions are 354 x 78 x 259 mm (width x height x depth).

Can I use the Flat Sub 25 with any car stereo?

Yes, it is compatible with most car receivers as it accepts both line level (RCA) and speaker level (high-level) outputs.

How do I adjust the bass output?

You can adjust the bass using the variable low pass filter (40-200 Hz), variable bass boost (0-12 dB at 45 Hz), phase switch (0° or 180°), and the included remote volume control.

What is the frequency response of this subwoofer?

The frequency response is 25 to 200 Hz, ideal for deep bass reproduction.

What type of enclosure does the Flat Sub 25 have?

It features a low resonance aluminium die-cast enclosure for durability and reduced distortion.

How should I clean and maintain the subwoofer?

Clean the exterior with a soft, dry cloth. Keep ventilation slots free of dust. Do not use water, solvents, or abrasive cleaners.

What is the fuse size for the Flat Sub 25?

The fuse rating is 30 A. Always replace with the same type and rating.

Does the Flat Sub 25 come with a remote control?

Yes, a remote volume control is included, allowing you to adjust the bass level from the driver's seat.

USER MANUAL Flat Sub 25 MAC AUDIO

Black audio amplifier device with speaker grille and external ports (no visible text or symbols on body)

HIGHLIGHTS

• 250 mm high-performance driver with aluminium cone, voice coil ventilation and long-throw surround
• Low resonance aluminium die-cast enclosure
  • Amplifier module with a power output of 500 watts max
• Stereo RCA/high level inputs compatible with all car receivers, accepts line level (RCA) or speaker level outputs of the car

• Automatic switch-on via DC/remote
• Variable low pass filter 40 – 200 Hz (12dB/octave)
• Variable Bass Boost 0-12dB at 45 Hz
• Phase switch 0/180 degrees
- Remote volume control
- Including mounting material

TECHNICAL DATA	FLAT SUB 25
Max. power output (sine burst 2:8, 1 kHz) at 14.4V 500 W
RMS power output (DIN 45 324) at 14.4V 180 W
Frequency Response 25 – 200 Hz
Supply voltage 12 V
Input sensitivityLow LevelHigh Level	0,2 – 5,5V0,5 -10V
Input impedanceLow LevelHigh Level	20 kOhm100 Ohm
Fuse size 30 A
Dimensions (WxHxD) 354 x 78 x 259 mm
Weight 5,1 kg
Art.No.	110 4425
EAN	40 23037 04425 6