FONESTAR FS-4256E Instruction Manual

FS-4256E

4-CHANNEL POWER AMPLIFIER WITH

100 V LINE OUTPUT

INSTRUCTION MANUAL

We take this opportunity to thank you for buying this product.

W

e recommend you read the instruction manual before switching on the machine and follow the instructions

that are given. Keep the manual for future reference.

SECURITY AND THE ENVIRONMENT

ELECTRICAL SECURITY
C

heck that the current in the mains connection where the machine is to be installed corresponds to the
power supply of the machine.
To avoid damaging the equipment, electrical shocks, fire or physical injury when you connect or disconnect
the equipment from the power supply, pull the plug firmly out of the mains socket holding the plug, never the
cable.
Always do this with dry hands.
Keep the power supply cable far from sources of heat. Do not put heavy objects on top of it or change it.
Clean dust and dirt off the power supply cable regularly.
Do not open the machine; you could get an electric shock.

CAUTION
While installing the machine, make sure it is switched off and unplugged.
Do not open the machine. Touching the internal parts is dangerous and you could receive an electric shock.
The machine must not be splashed or dripped on. Never place recipients with liquid inside on the machine.
Do not place anything inside the machine.

LOCATION
Place the equipment on a horizontal surface with enough space around it to allow ventilation.
Avoid direct sunlight, heat sources and excessive dust.
Do not place the machine near magnetic fields or static electricity.
Do not use surfaces which vibrate or receive impact.
Do not pile machines on top of one another.

VENTILATION
Never block or cover the ventilation slits on the machine.
Do not expose it to direct sunlight or place it near sources of heat.

PERIODS OF INACTIVITY
When the machine is not going to be used for a long period of time, disconnect it from the mains.
If you are using an adapter, take into account that it will continue using electricity even if the machine is
switched off. If it is not going to be used for a long period of time, disconnect it from the mains.

THE ENVIRONMENT
To save energy, switch the machine off when you are not going to use it for a long time. The machine could
contain substances that are harmful to the environment or human health. To minimize the effect of these
substances the machine must be correctly managed and recycled when you decide to dispose of it.
When you dispose of it remember: it cannot be thrown into a conventional rubbish bin.
If it contains or uses batteries, these must be disposed of separately.
The machine (without batteries) must be disposed of correctly. Put it in a container specially intended for the
collection of electronic and electrical appliances, at the dump or hand it over to the dealer when you purchase
similar equipment, so that the dealer can dispose of it correctly (at no added cost).

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SIGNIFICANCE OF THE SYMBOLS ON THE MACHINE*

The symbol formed by the expression “Class 1 laser product” written in a rectangle
indicates that visible or invisible laser radiation could be produced. Avoid direct expose to
the laser.

The symbol formed by a ray of lightening inside a triangle shows that the machine has
c

onnection terminals or a circuit with areas with a current which could cause an electric

shock, even in normal working conditions.

The symbol formed by an exclamation mark in a triangle shows that the instruction manual
must be referred to for information on how the machine works and its use.

The symbol formed by one square inside another square shows that the machine has
double electrical insulation.

The European Community symbol shows that the machine complies with the current
European Union legislation, as well as its transposition to local legislation.

The symbol of a rubbish bin crossed out and over a horizontal line shows that when the
product is disposed of it must be done properly, placing it in a special selective electronic
and electrical equipment container or through a dealer when purchasing a similar product,
at no additional cost. It also shows that the machine was put on the market after 13th
August 2005 (European Community Directive 2002/96/CE of Electrical and Electronic
recycling, and its Spanish equivalent R.D.208/2005).

In accordance with what is set out in the aforementioned decree, FONESTAR is registered
in the RAEE (Registro de Aparatos Eléctricos y Electrónicos) in a special section REI
(Registro de establecimientos Industriales), with the entry number 001851.

*It is possible that some of these symbols do not appear on the machine.

EXEMPTION OF LIABILITY

The characteristics of the equipment and the content of the manual can change without forewarning.
FONESTAR, S.A. does not assume responsibilities regarding the inappropriate use of the equipment or the
information supplied in this instruction manual, and specifically disclaims any implied liability for marketability
or fitness for any other use.

All rights reserved by FONESTAR, S.A.

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DESCRIPTION

- 4-channel power amp.

-

4 x 250 W RMS. Loudspeaker output 4 and 8 Ω, 100 and 70 V lines.

CONTROLS AND FUNCTIONS

FRONT PANEL

1.- CH 1-4: volume control knobs for channel 1 to 4. It is recommended not to raise these volume controls

to their maximum. Position them at 3/4 for optimum results.

2.- PROT: LED protection indicators for each channel. They light up when the amplifier’s protection is

activated due to a surge or short circuit. With the protection activated the audio output is cut off.

3.- TEMP: LED temperature protection indicators for each channel They light up when the protection is

activated due to an excessive temperature inside the amplifier. With the protection activated the audio
output is cut off.

4.- CLIP: LED signal peak indicators for each channel. They light up when an excessive input signal is

detected in the corresponding channel or when there is an excessive output level which could cause
damage.

5.- SIGNAL: LED indicators which light up when an input signal is detected in channels 1 to 4.

6.- POWER: Power amplifier on/off switch.

7.- LED power indicator.

REAR PANEL

1.- CH 1-4 OUTPUTS: loudspeaker output terminals. Use just one output depending on the charge

impedance: low impedance lines 4 or 8 Ω or high impedance lines 70 or 100 V. Connect the
loudspeakers between the COM terminal and one of the output teminals : 4 Ω, 8 Ω, 70 V or 100 V.

2.- GND: eath connection terminal.

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3.- BREAKER: resettable 10 A fuse. When the power amp. is overloaded or there is a surge, the fuse will
be cut off to avoid damage. It is reset by pressing it.

4.- Power supply input 230/115 V AC.

5

.- Power supply voltage selector.

6.- LINK: balanced signal output for channels 1 and 2 for connecting several devices in cascade. XLR
c

onnectors.

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.- INPUT: balanced signal input for channels 1 and 2, XLR connectors.

8.- Operating mode selector.

9.- GND LIFT: this selector is normally set in the GND position. If the installation has ground noises, move
the selector to the LIFT position to disconnect the device’s ground and the earth.

CONNECTION

- Before making any connections make sure that all the devices are switched off.

- Check that CH 1 and CH 2 volume controls are set at their minimum.

Depending on the desired application, 3 operating modes can be selected using the selectors located on the
rear part of the device: parallel mode (PARALLEL), stereo mode (STEREO) and bridge mode (BRIDGED).

PARALLEL MODE

Place the selectors located in the rear part of the amplifier in the PARALLEL position.
By doing so, the input for channels 1 and 2 will be the input signal for channel CH 1 and the input for channels

3 and 4 will be the input signal for channel CH 3. Connect the channel inputs CH 1 and CH 3 and the 4
loudspeaker outputs. The output volume in the 4 channels is adjusted separately.

.

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STEREO MODE

Place the selectors located in the rear part of the amplifier in the STEREO position.
By doing so, the 4 channels will operate independently. Connect the 4 inputs and the 4 outputs of the

l

oudspeakers. The channel volume is adjusted separately.

BRIDGE MODE (BRIDGED)

Place the selectors located in the rear part of the amplifier in the BRIDGED position.
By doing so, the input for channels 1 and 2 will be the input signal for channel CH 1 and the input for the channels

3 and 4 will be the input signal for channel CH 3. The amplifier’s 4 channels are connected internally two by two
so that their power is combined in two outputs. connect the inputs of channels CH 1 and CH 3 and the
loudspeaker outputs BRIDGED. The volume is adjusted with the controls CH 1 and CH 3.

INSTRUCTIONS FOR USE

ON AND OFF

Before switching on the power supply check that the volume controls of channels 1 to 4 are at their minimum.
Switch on the rest of the audio system and finally switch on the amplifier and adjust the volume controls.

T

o switch off the audio system adjust the amplifier’s volume to the minimum and switch it off.Finally switch

off the rest of the audio system.

PROTECTION

The amplifier has 4 types of protection: overload, overcurrent, surge and temperature.
When protection is activated, an LED indicator lights up in the front panel and cuts off the audio output. In

this case, check what has caused the activation of the protection, leave it to recover for a few moments and
then switch it back on.

RESETTABLE FUSE

The power supply source is manufactured with advanced components which absorb current peaks and
eliminate fluctuations caused by switching the amplifier on. Furthermore, the amplifier is equipped with a 10
A BREAKER resettable fuse located in the rear panel.

If the fuse is cut off, due to a surge or excessive consumption, switch the power amp off, check what has
caused the fuse to be cut off, let it recover for a few moments and reset the fuse BREAKER by pressing it.

TECHNICAL SPECIFICATIONS

FS-4256E

CHARACTERISTICS 4-channel power amplifier.
POWER Stereo and parallel mode: 4 x 250 W RMS

Bridge mode: 2 x 500 W RMS at 8 Ω

RESPONSE 30-20,000 Hz, ±3 dB
DISTORTION Harmonic: < 1%
INPUTS 4 balanced aux lines, XLR, 700 mV RMS
OUTPUTS 4 balanced aux lines, XLR
FUNCTIONS Ventilation with speed variable with temperature

LED power, signal, clip, temperature and protection indicators

CONTROLS

Volume per channel
GND lift earth disconnection
Parallel/stereo/bridge operating mode selector

PROTECTION

Overload, overcurrent, surge and temperature

S/N RATIO

> 90 dB

IMPEDANCE

4 and 8 Ω and 100 and 70 V lines, screw terminals

POWER SUPPLY

230/115 V AC, 1,800 W maximum
Resettable 10 A fuse

DIMENSIONS 483 x 133 x 460 mm depth. 3 U 19" rack

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DECLARATION OF CONFORMITY

FONESTAR SISTEMAS S.A.

Polígono de Trascueto s/n
39600 Revilla de Camargo, Cantabria (España)

Declares, under its responsibility, that the following equipment:

Description: 4-channel power amplifier with 100 V line output
Brand: FONESTAR
Model: FS-4256E

complies with the European Community directives 2004/108/CE, 2006/95/CE on Electromagnetic
Compatibility, 2006/95/CE on Low Voltage and 2011/65/EU on restrictions on the use of certain
dangerous subtances in electrical and electronic appliances (RoHS).

Santander, 29th January 2016

Juan Vallejo

Technical Engineer, Sales Department

WARRANTY

This product has been tested and has passed the corresponding quality control prior to being put on the market.

FONESTAR guarantees the suitability of the product for its specified use during a period of 2 years from the delivery date
and commits itself to repair or substitute the goods as expressed in the Spanish law ‘La Ley General para la Defensa de los
Consumidores y Usuarios, Real Decreto Legislativo 1/2007 16 Noviembre.

The lack of conformity in the first six months after purchase, due to a manufacturing defect, will be rectified with no more
than showing the proof of purchase. After six months FONESTAR reserves the right to demand proof of the product being
sold with that problem.

This warranty does not include damage produced by: inappropriate use or negligence, accidents, worn out parts due to use,
breakages, burns, spilt liquids or other substances, excessive humidity, battery deterioration and internal manipulation of the
device, the software or its components by unauthorized persons, and in general any use that is unrelated to the nature and
purpose of the product.

If any service is needed during the warranty period because of lack of conformity, please contact the business or distributor
where the product was purchased in no more than 2 months after being conscious of the problem. It is only necessary to
contact FONESTAR if it is impossible or imposes an undue burden for them to solve it..

To benefit from this warranty it is necessary to show the proof of purchase with the date clearly visible, with no corrections
or crossing out

This document adds information, and never decreases the consumers’ rights, which in all cases are protected by the Spanish
law ‘La Ley General para la Defensa de los Consumidores y Usuarios, Real Decreto Legislativo 1/2007 16 Noviembre.

FONESTAR is a member of ECOEMBALAJES ESPAÑA, S.A. “ECOEMBES”, with number 03497 and all our
products carry the symbol, backed by our membership and subscription to the above mentioned organization with
the recycling and subsequent management of our packaging.

FONESTAR, S.A. - NIF: A28780443 - Apartado 191 - 39080 Santander, Cantabria (SPAIN)

www.fonestar.com