SOMOGYI ELECTRONIC SBF 2025 Universal Car Amplifier 2 Channels 4ohm 50W Instruction Manual

SOMOGYI ELECTRONIC SBF 2025 Universal Car Amplifier 2 Channels 4ohm 50W

TECHNICAL PARAMETER

TECHNICAL PARAMETER

number of channels:| 2
acoustic power (4Ω):| 2 x 25 W
Terminal amplifier| Integrated circuit
frequency range| FILTER-OFF: 20-35.000 Hz
| FILTER-L: 20-200 Hz
| FILTER-H: 200-35.000 Hz
cut-off slope| 6 dB/octave
LINE IN:| max. 2 V
THD:| <0,2%
signal-to-noise ratio:| >92 dB
fuse:| 5 A
outer dimensions:| 100 x 65 x 40 mm

CAR AMPLIFIER

Before using the product for the first time, please read the instructions for use below and retain them for later reference. The original instructions were written in the Hungarian language.
This appliance may only be used by persons with impaired physical, sensory or mental capabilities, or lacking in experience or knowledge, as well as children from the age of 8, if they are under supervision or have been given instruction concerning use of the appliance by a person responsible for their safety and they have understood the hazards associated with use. Children should not be allowed to play with the unit. Children may only clean or perform user maintenance on the appliance under supervision.
After unpacking, please, check the device for possible transport damages. Keep the packaging away from children, if it contains bags or other potentially dangerous components!

FEATURES
Power output: 2 x 25 W • Loading capacity: 4 Ohm • Integrated circuit of final amplifier • 3 kinds of mode for crossover operation: for subwoofers, midrange speakers and tweeters and wide range speakers • Volume control • High and low level line entrance • Gilded RCA connectors • 3 kinds of cable accessories
The SBF 2025 dual-channel universal car amplifier is suitable to drive bass speakers, mid-bass + treble speakers and wide-range speakers. It has an adjustable sound switch, enabling you to set the frequency transmission that best suits your system. The amplifier’s versatility makes it possible to use both channels independently to drive two sub boxes, or two boxes with bass speakers, feeding them separately.

ELECTRONIC CROSSOVER
The base of the universal usage is the switchable active crossover. With its help, the amplifier is able to operate conventional car speakers, in wide range mode, or even only subwoofers or midrange speakers with tweeters as well. The cut-off point of the crossover is adjustable between 200 Hz. It means ex. in sub-bass mode (FILTER-L) the frequency transmission will be between 20-200 Hz, while in FILTER-H position it is adjustable between 200-35.000Hz. In wide range mode (FILTER OFF) the intonated frequency range will be 20-35.000 Hz.
The switches and controls affect both channels in the same way.
DEMONSTRATION OF OPERATION OF DEVICE

CROSSOVER SETTING

FILTER-L| FILTER-OFF| FILTER-H
bass| wide range| midrange + tweeter
1.| 2.| 3.

CONNECTING OF LOUDSPEAKERS
Keep your eye on the connection should suit with polarity written at SPEAKER connector. The load impedance can not be less than 2 x 4 Ohm.
Because the amplifier can not be connected in bridge over, it is reasonable to use sub-box with two speakers in case of application of sub-bass and power them separately from stereo channel. But it is not a problem operating only one piece of sound emitter but in this case we lose the half of maximal volume of sound.

CONNECTION OF INPUT SIGNAL
The amplifier is suitable to accept both low and high-levelled input signs. This way it will be able to be connected to such car radios, which are not equipped with connection, constructed to outer amplifier- only with 2 or 4 loudspeaker outputs. According to this, the wires of HIGH socket are to be connected parallel to the available loudspeakers, while the two LOW labelled RCA sockets can be connected to the similar constructed, so-called low- levelled output of the car radio.

CONNECTION OF POWER SUPPLY
For operating the device need to get tension through the three wires of POWER socket.

• If the car radio doesn’t have 12 Volt output for this purpose, then the REMOTE and POWER points have to be connected. In this case, one switch is recommended to put in front of REMOTE connector, or get the switch voltage from such point, which will be voltage free after pulling the ignition key out. Otherwise the amplifier would be under voltage continuously.

INSTALLATION, CHECKING DEFAULTS
Before you would activate under voltage the amplifier, check if the connections are correct. Connections should be stable and without short circuits, switches and controls are in the correct positions.
The POWER display shows the “ready for operation” status. If the LED doesn’t light at all, switch off the voltage, disconnect the speakers and the car stereo, then reconnect the voltage. If the indicator still fails to light, use a voltmeter to check whether the amplifier is receiving the 12 V supply voltage and that the grounding point wiring is free of fault. If the car stereo is equipped with a separate remote control output (REMOTE) and it is connected, the presence of switching voltage should also be checked.
By reconnecting the supply voltage, the car stereo, and the loudspeakers you should be able to determine the unit or section of wiring causing the fault. If necessary also check the fault-free status of the fuse!
If – after turning the volume down – you hear various noises from the system, first disconnect the RCA plug from the system. If the noise persists, check the correct grounding of the amplifier.
On the other hand if the noise ceases, this means that its source is outside the amplifier. Possible causes are: ground loop, contact fault on head unit, equalizer, crossover, … , or other sound frequency chain device. A faulty circuit breaker, old battery, bad ignition cables, bad contacts are all possible sources of audible noise.

SETTING THE INPUT SIGNAL LEVEL
Set the LEVEL volume control in minimum position – twist left. Switch on the car stereo and turn its volume up about ¾ of the way. Turn the potentiometer clockwise slowly until you start to hear distortion at volume peaks. Then turn it back a little bit. This will be the maximum volume of the system at which sound is reproduced in good quality without distortion. The LEVEL setting depends on the output level of the car stereo at hand, thus it is varies device by device. Turning LEVEL up further will not increase the output power of the amplifier and the car stereo volume control can only be turned up to a lower degree as the distortion of the system will increase!

ACCESSORIES

• Supply cable with fuse socket, 250 V/F5 A glass tube indicating fuse,
• speaker connection cable
• high level input connection cable
• clamping-screw

WARNINGS

• The installation of car stereo equipment requires important technical skills and expertise, which cannot be covered in this manual. If necessary, consult an expert to avoid causing damage to the amplifier or your car.
  The amplifier will only work correctly if it is installed in a proper way.

• The warranty does not cover damages resulting from improper installation and connection.

• Never cover the amplifier and only install it in a place where adequate ventilation is ensured.

• Protect the device from sunlight, dust, humidity and water.

• The negative pole of the speakers must not get in contact with the car’s grounding (the battery’s negative pole).

• The amplifier’s protective circuits might get activated and shut off the amplifier when the environment temperature is extremely high or low (e.g., when parking in the sun in the summer or when the car becomes cold in the winter). In this case leave the amplifier turned off until normal environment temperature is restored.

• Do not use the amplifier for a prolonged period of time when the engine is not running as this can drain the battery.

• Always use the amplifier at a volume that does not affect your participation in traffic and does not damage your hearing. Many car stereo systems are capable of emitting audio pressure in excess of 130 dB, but sound stronger than 100 dB can permanently damage your hearing.

• Only use an identical fuse for replacement.

• This device can only be used with a 12 V power source with negative grounding.

To prevent hearing loss, do not listen to the device at high volumes for extensive periods of time.
Waste equipment must be collected and disposed separately from household waste because it may contain components hazardous to the environment or health. Used or waste equipment may be dropped off free of charge at the point of sale, or at any distributor which sells equipment of identical nature and function. Dispose of the product at a facility specializing in the collection of electronic waste. By doing so, you will protect the environment as well as the health of others and yourself. If you have any questions, contact the local waste management organization. We shall undertake the tasks pertinent to the manufacturer as prescribed in the relevant regulations and shall bear any associated costs arising.

Producer

1. SOMOGYI ELEKTRONIC®
   H – 9027 • Győr, Gesztenyefa út 3. • www.somogyi.hu
   Distribútor: SOMOGYI ELEKTRONIC SLOVENSKO s.r.o.

2. Ul. gen. Klapku 77, 945 01 Komárno, SK • Tel.: +421/0/35 7902400 • www.somogyi.sk

3. Distribuitor: S.C. SOMOGYI ELEKTRONIC S.R.L.
   J12/2014/13.06.2006 C.U.I.: RO 18761195 Cluj-Napoca, judeţul Cluj, România, Str. Prof. Dr. Gheorghe Marinescu, nr. 2, Cod poştal: 400337 Tel.: +40 264 406 488, Fax: +40 264 406 489 • www.somogyi.ro

4. Uvoznik za SRB: ELEMENTA d.o.o.
   Jovana Mikića 56, 24000 Subotica, Srbija • Tel:+381(0)24 686 270 • www.elementa.rs Zemlja uvoza: Mađarska • Zemlja porekla: Kina • Proizvođač: Somogyi Elektronic Kft.

5. Distributer za SLO: ELEMENTA ELEKTRONIKA d.o.o.
   Cesta zmage 13a, 2000 Maribor, Slovenija • Tel.: 386 59 178 322 • www.elementa-e.si Država uvoza: Madžarska • Proizvajalec: Somogyi Elektronic Kft.

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