EFM-01 - Hi-Fi Power Acoustik - Free user manual and instructions

Product Type	Car Stereo Amplifier
Model	EFM-01
Brand	Power Acoustik
Dimensions (W x H x D)	10.2 x 2.0 x 6.0 inches
Net Weight	3.1 lbs
Power Supply Voltage	DC 12V (negative ground)
Rated RMS Power Output (4 ohms)	50W x 2 channels
Peak Power Output	150W x 2 channels
Frequency Response	20Hz - 20kHz ±1dB
Input Sensitivity	200mV - 6V
Signal-to-Noise Ratio	>90dB
THD (Total Harmonic Distortion)	<0.05%
Speaker Impedance	4-8 ohms
Fuse Rating	15A (AGU type)
Cooling Method	Convection cooling
Protection Circuits	Overload, short circuit, thermal
Input Type	RCA line inputs (2 pairs)
Audio Outputs	Spring-loaded speaker terminals
Controls	Gain, bass boost, low-pass crossover
Mounting	Horizontal or vertical
Operating Environment	Indoor, dry, well-ventilated
Maintenance	Clean exterior with dry cloth; ensure unobstructed airflow
Safety Precautions	Disconnect battery before installation; avoid shorts
Spare Parts & Repairability	Contact Power Acoustik service center
Certification	CE, RoHS

Frequently Asked Questions - EFM-01 Power Acoustik

What is the power output of the EFM-01?

The EFM-01 delivers 50W RMS per channel at 4 ohms and 150W peak power per channel.

What power supply is required?

It operates on 12V DC with a negative ground system, typical for vehicles.

Can I bridge the channels?

This model is not designed for bridging; use as a 2-channel amplifier.

What is the recommended speaker impedance?

It works best with speakers of 4 to 8 ohms impedance.

How do I adjust the gain?

Use a small screwdriver to turn the gain control on the amplifier side. Set to minimum initially and increase gradually.

Does it have a low-pass filter?

Yes, it includes an adjustable low-pass crossover (50-250Hz) for subwoofer use.

What fuse value should I use?

Use a 15A AGU fuse in line with the power wire.

Can I install it in a car with start-stop system?

Yes, but ensure the amplifier is connected to a stable 12V supply that doesn't drop below 10V during start.

How do I clean the amplifier?

Wipe with a dry soft cloth; avoid liquids. Keep ventilation slots clear.

Where can I find the user manual?

The manual is available for free download on notice-facile.com in PDF format.

USER MANUAL EFM-01 Power Acoustik

Digital FM Stereo Modulator

Multi-Channel PLL Synthesizer

MODEL : EFM-01 OWNER'S MANUAL

FEATURE

● High reliability PLL synthesized tuning system
● Provide 8 carrier frequencies
● High isolation from nonessential frequencies
- Compact and light, Can be placed behind the radio inside the dashboard.

SPECIFICATIONS

POWER SUPPLY	DC 12V	=50mA
CARRIER FREQUENCY	88.5MHz-89.9MHz	8 step by 0.2MHz
TUNING SYSTEM	PLL synthesize
INPUT IMPEDANCE	=10KΩ	AUDIO INPUT L&R
INPUT TERMINAL	RCA JACK	L&R
FUSE	250V 1A	Tube type, 6 × 30mm
FROM ANT CABLE	RCA jack	Coaxial
TO TUNER CABLE	RCA plug	Coaxial

■ Design and specifications are subject to change without notice.

WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK. DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE. CAUTION TO PREVENT ELECTRICS SHOCK MATCH POLRAITY OF POWER SOURCE, USE DC12V OF CAR BATTERY ONLY.

IMPORTANT SAFETY INSTRUCTIONS

This unit is fully transistorized and does not contain any parts that can be repaired by the user.

DO NOT REMOVE THE CABINET COVER, OR YOU MAY BE EXPOSED TO DANGEROUS VOLTAGE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL ONLY.

1. Read owner's manual

After unpacking this unit read the owner's manual carefully, and follow all the operating and other instructions.

1. Power sources

This product should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power supply in your circumference, consult your product dealer.

3. Heat

The product should be situated away from heat sources such as radiators, heat register or other products (including amplifiers) that produce heat.

4. Water and Moisture

Do not use this product near water-for example, near a bath tub, wash bowl, kitchen sink, or laundry tub in a wet basement or near a swimming pool and the lake.

5. Object and Liquid entry

Never push objects of any kind into this product through openings as they may touch dangerous voltage points or short-out parts that could result in a fire or electric shock. Never spill liquid of any kind on the product.

6. Burden

Do not place a heavy object on or step on the product. The object may fall, causing serious personal injury and serious damage to the product.

7. Connecting

When you connect the product to other equipment, turn off the power and unplug all of the equipment from the outlet. Failure to do so may cause an electric shock and serious personal injury. Read the owner's manual of the other equipment carefully and follow the instructions when marking any connections.

CONNECTING TO CAR FM RADIO SYSTEM

graph LR
    A["Input"] --> B["①"]
    B --> C["②"]
    C --> D["③"]
    D --> E["④"]
    E --> F["⑤"]
    G["FM Stereo Modulator Multi-Channel PLL Synthesizer"] --> H["⑥"]
    H --> I["⑦"]
    style A fill:#f9f,stroke:#333
    style B fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333
    style D fill:#f9f,stroke:#333
    style E fill:#f9f,stroke:#333
    style F fill:#f9f,stroke:#333
    style G fill:#f9f,stroke:#333

1. Connect GROUND terminal(①). then connect the terminal of fuse cable(②) to DC 12V which to be supplied when you turn on your instruments. Cut and delete terminal(@) if you do not use it. It may cause eletric short if you leave as it is, so you may be exposed to any risk or accidents.
2. Connect AUDIO INPUT jack(③) from audio output jack of audio sources. VCR, CD player, DVD, MD, etc., This unit is prepared for stereo sound. white color jack is for LEFT sound and red color jack is for RIGHT sound.
3. Connect FROM ANTENNA input jack(④) from an outside FM antenna.
4. Connect TO TUNER antenna plug(⑤)to antenna input jack of FM tuner on your car.
5. Set this unit(⑥)behind the FM radio inside the dashboard.

HOW TO SET FM FREQUENCY

You can set the FM carrier frequency which can be use in your car FM tuner by setting DIP switch that it is located on bottom side. How to set FM carrier frequencies are as follows.

88.5 MHz

88.7 MHz

88.9 MHz

89.1 MHz

89.3 MHz

89.5 MHz

89.7 MHz

89.9 MHz

※ Pin 1 is not available.