ecler eLPA2-650 Light Stereo Amplifier User Manual
- June 3, 2024
- ecler
Table of Contents
eLPA2-650 / eLPA2-950 / eLPA2-1400
AMPLIFIERS
Light Stereo Amplifier
USER MANUAL
**IMPORTANT REMARK
**
The lightning flash with arrowhead symbol, within an equilateral triangle, is
intended to alert the user to the presence of uninsulated “dangerous voltage”
within the product’s enclosure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the
user to the presence of important operating and maintenance (servicing)
instructions in the literature accompanying the appliance.
WARNING (If applicable): The terminals marked with symbol of “ ” may be
of sufficient magnitude to constitute a risk of electric shock. The external
wiring connected to the terminals requires installation by an instructed
person or the use of ready-made leads or cords.
WARNING: To prevent fire or shock hazard, do not expose this equipment to
rain or moisture.
WARNING: An apparatus with Class I construction shall be connected to a
mains socket-outlet with a protective earthing connection.
IMPORTANT SAFETY INSTRUCTIONS
- Read these instructions.
- Keep these instructions.
- Heed all warnings.
- Follow all instructions.
- Do not use this apparatus near water.
- Clean only with dry cloth.
- Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
- Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Do not defeat the safety purpose of the polarized or grounding type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
- Protect the power cord from being walked on or pinched particularly at the plugs, convenience receptacles, and at the point where they exit from the apparatus.
- Only use attachments/accessories specified by the manufacturer.
- Unplug the apparatus during lightening sorts or when unused for long periods of time.
- Refer all servicing to qualified personnel. Servicing is required when the apparatus has been damaged in any way, such as power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
- Disconnecting from mains: Switching off the POWER switch all the functions and light indicators of the amplifier will be stopped, but fully disconnecting the device from mains is done unplugging the power cord from the mains input socket. For this reason, it always shall remain readily operable.
- Equipment is connected to a socket-outlet with earthing connection by means of a power cord.
- The marking information is located at the bottom of apparatus.
- The apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall be placed on apparatus.
NOTE: This equipment has been tested and found to comply with the limits
for a Class A digital device, pursuant to part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own expense.
WARNING: This product must not be discarded, under any circumstance, as
unsorted urban waste. Take to the nearest electrical and electronic waste
treatment centre.
NEEC AUDIO BARCELONA, S.L. accepts no liability for any damage that may
be caused to people, animal or objects due to failure to comply with the
warnings above.
IMPORTANT NOTE
Thank you for choosing our Light Stereo Amplifier eLPA series!
It is VERY IMPORTANT to carefully read this manual and to fully understand its
contents before any connection in order to maximize your use and get the best
performance from this equipment.
To ensure optimal operation of this device, we strongly recommend that its
maintenance be carried out by our authorised Technical Services.
The Ecler eLPA series comes with a 3 years warranty.
INTRODUCTION
The eLPA line of amplifiers offers the classic and recognized professional
reliability of Ecler amplifiers under new aesthetics and at an affordable
cost. It consists of 4 stereo models of 350, 650, 950 and 1400 WRMS per
channel on 4Ω. All models take a 2 rack height units space and are mounted on
a robust chassis. Thanks to its oversized power supply, the amplifier can work
comfortably with loads of 4Ω.
The models eLPA2-650, eLPA2-950 and eLPA2-1400 incorporate 2 balanced inputs
through XLR3 connectors. These inputs deliver the signal without modifications
to two XLR type outputs, which can act as LINK among other eLPA units. Its
outputs offer total versatility thanks to the double format used: safety
terminal type connectors with standard distance and Speakon® connectors. They
also feature an electronic limiting system to avoid signal saturation
clipping.
4.1. Features
- Effective progressive ventilation system, with flow adaptable to the internal temperature of the amplifier. It takes the air from the rear and is expelled from the front.
- Rotating controls for input attenuation in the frontal panel, easily accessible.
- Power ON, Signal Presence (SIGNAL), Clipping (CLIP), and Protection Activation (PROTECT) indicators.
- Effective system of protections against short circuit, overheating and presence of continuous signal, to avoid damage to the amplifier itself and/or the loudspeakers connected to it.
- Built-in anticlip circuit (signal clipping or saturation), always active.
- Working mode selector: STEREO, PARALLEL and BRIDGE.
- Input sensitivity selector.
- Balanced inputs through XLR3 connectors, which deliver a copy of the signal to the two XLR outputs in order to act as LINK among other eLPA units.
- Amplified outputs with terminal block connectors and Speakon® connectors.
- Operation at 8, and 4Ω, or 8Ω in bridge mode.
- Warranty: 3 years.
INSTALLATION
Non-compliance with the instructions or neglecting warnings may cause malfunction or even damage the unit:
- Avoid turning on the device without the speakers connected to its outputs and without having previously set the volume/gain controls to minimum level.
- Always use shielded cables to make connections between devices.
- In an amplifier, avoid placing the speaker output cables close to other signal cables (micro, line…). This may cause the system to oscillate, damaging the amplifier and speakers.
5.1. Location, mounting, ventilation.
The eLPA amplifiers come in 19″ rack format with two height units.
It is very important that, as a heat generator element, the amplifier is not
completely enclosed or exposed to extreme temperatures. The forced ventilation
system that they incorporate takes the air from the rear, directing it
directly to the power modules and diverting a part to the transformer and
condensers, forcing it to exit through the cooling
tunnel by the front of the amplifier. Therefore, the passage of fresh air
through the forced ventilation tunnel should be favoured, avoiding in the case
of rack mounting an excessive accumulation of heat inside the rack that would
increase the probability of premature failure of any of its electronic
components. Likewise, it is advisable not to place the power amplifiers under
other devices, but on top of them, in order to favour the thermal dissipation
of the whole.
5.2. Mains connection
The eLPA2-650, 2-950 and 2-1400 models have a power supply that accepts mains
voltage 90 to 264 V, 47 to 63Hz. All models feature fuses to protect against
possible overloads. If one of these fuses blows, it must be replaced by
another of identical characteristics. If the fuse is blown again immediately
after replacement, consult our Technical Service. A HIGHER VALUE FUSE MUST NOT
BE USED UNDER ANY CIRCUMSTANCES.
Do not allow the power cord to run into the shielded cables carrying the audio
signal, as this may cause humming and induction of unwanted audible noises.
5.3. Signal input connections
The balanced signal input connectors are of the XLR-3 type. The assignment is
as follows:
| XLR-3
---|---
Live or direct signal| > Terminal 2
Cold or inverted signal| > Terminal 3
Ground| > Terminal 1
For unbalanced connections, short-circuit the XLR terminal 3 to ground.
The XLR female inputs provide a copy to their respective XLR male connectors,
which can act as LINK to another eLPA unit.
The input impedance in balanced mode is 20kΩ (10kΩ unbalanced), allowing you
to connect a large number of stages in parallel without compromising sound
quality. The sensitivity is selectable via a switch on the rear panel between
0.775V, 1V and 32dB.
5.4. Limiting circuit
This is an extra protection, always active in the eLPA series amplifiers. This
“ANTICLIP” circuit constantly analyzes the harmonic distortion produced by
excessive trimming of the signal at the amplifier output, automatically
reducing the input level to keep the distortion level below approximately
0.5%.
The advantage of this system over classical compressors is that the dynamic
behaviour of the signal is hardly altered, since it acts only when the defined
distortion threshold is exceeded.
5.5. Output connections
The OUTPUT section of the rear panel is equipped with Speakon® connectors and
screwable terminals.
If STEREO mode is used, the channel 1 input signal will be output from channel
1 via terminals 1+ and 1-, while the channel 2 input signal will be output
from channel 2 similarly.
PARALLEL mode delivers the same input signal to both output channels.
When you want to use the amplifier in bridge mode (BRIDGE), you must set the
“MODE” switch to BRIDGE. The input signal connection will be made through the
channel 1 connector. For the output connection to the loudspeaker, use
terminals 1+ and 2- of the Speakon® “CH1” connector or the screwable terminals
CH1+ and CH2-.
In addition, the two screwable terminals not used for the connection (CH1- and
CH2+) must be connected together using a minimum 1.5 mm² cable. This
connection must be made on the screwable terminals whether the two other CH1+
CH2- screwable terminals are used as output, or whether the Speakon® terminals
are used.
Before starting up the amplifier, make sure that the overall impedance of the
set of the loudspeakers connected to the amplifier (working in BRIDGE mode) is
not less than 8Ω. The connecting cable between the amplifier outputs and the
loudspeakers should be of high quality, of sufficient cross-section and of the
shortest possible length. This is
especially important when the distances to be covered are large: up to 10
meters a section of not less than 2.5 mm² is recommended and not less than 4
mm² for longer distances.
FUNCTIONING
6.1. Start-up
When the power-on switch is pressed, the blue LED “ON” and the two red LEDs
“PROTECT” light up. About 10 seconds later, all the voltages have stabilized
and the amplifier is operational, and the “PROTECT” indicators go out.
In a complete audio installation it is important to start the equipment
according to the following sequence: sound sources, mixer, equalizers, active
filters and finally the power amplifiers. To stop them, the sequence must be
followed in reverse.
6.2. Input attenuators
These devices are governed from the two rotary controls located on the front
panel.
Their function is to adjust the intensity of the signal received by the
amplifier from an external signal source connected to INPUT 1 / INPUT 2,
adapting it to the maximum level of listening desired and/or supported by the
system’s loudspeakers.
6.3. Indicators
The eLPA amplifiers provide a simple and effective indication system:
- Indicators “PROTECT”: They signal the absence of a power signal on the amplifier’s speaker output. They can be activated for different reasons:
- In the start-up interval, from the moment the power button is pressed until the end of the starting time necessary to stabilize the amplifier’s internal voltages (approximately 10 seconds).
- Due to the presence of a short circuit in the output terminals of the amplifier (crossed cable, damaged loudspeaker, etc.).
- If the amplifier is delivering a continuous or very low frequency signal that could damage the loudspeakers.
WARNING: If these indicators are permanently lit, even if all signal input and output cables have been disconnected from the amplifier, this could be a malfunction symptom that should be analysed by the official Ecler service centre.
- Indicators “CLIP”: They are lit when the amplified signal present at the amplifier output is just below the clipping or saturation point. This system always provides a true indication, regardless of variations in mains voltage. It is normal for the CLIP indicators to light up briefly at high power levels at the rhythm of low frequencies, as these are the frequencies with the highest energy input in the audible spectrum. Care should be taken to ensure that these indicators are not permanently lit during normal operation of the amplifier.
- Indicators “SIGNAL”: They warn of the presence of signal at the amplifier inputs. These indicators illuminate when the signal present at the input exceeds a threshold of -40 dB.
CLEANING
The cover should not be cleaned with solvents or abrasive substances as there is a risk of damage to the screen printing. To clean it, uses a cloth dampened with water and a neutral liquid detergent and then dry it with a clean cloth. Under no circumstances should water be allowed to enter through any of the holes in the appliance.
FUNCTION DIAGRAM
FUNCTION LIST
- Indicator of the presence of signal at the input, SIGNAL
- Clipping indicator, CLIP
- Input attenuator
- Protective function indicator, PROTECT
- Indicator light, ON
- Start-up switch
- Input level selector, SENSITIVITY
- Filter toggle, CROSSOVER
- XLR input connector
- XLR output connector (LINK)
- “Speakon” connector for connection to speakers
- Screwable terminals for connection to the loudspeakers
- IEC Mains input
- Fuse holder
Note: When changing the selector to the BRIDGE MODE, the two screwable terminals not used for the connection (CH1- and CH2+) must be connected together using a minimum 1.5 mm² cable.
TECHNICAL CHARACTERISTICS
| eLPA2-650| eLPA2-950| eLPA2-1400
---|---|---|---
POWER 20-20kHz 1% THD| | |
1 Channel @ 4Ω| 630 WRMS| 950 WRMS| 1400 WRMS
1 Channel @ 8Ω| 340 WRMS| 500 WRMS| 770 WRMS
All Channels @ 4Ω| 610 WRMS| 920 WRMS| 1300 WRMS
Bridge@8Ω| 1220 WRMS| 1840 WRMS| 2600 WRMS
Input connectors| XLR3 connector
Signal present indicator| -40dB
Gain| 0.775V/1V/32dB
Frequency response (1dB, -3dB)| 20Hz – 25kHz
THD+N @ 1kHZ Full PWR| <0.1%
S+N/N 20Hz- 20kHz@1W/4Ω| >85dB
CMRR| >55dB
Output connectors| Speakon & binding posts
Mains Voltage| 100-240VAC, 50/60Hz
Power consumption (1/8 power @ 4Ω)| 223.5 W| 308.0 W| 473.0 W
Power consumption (1/3 power @ 4Ω)| 542.0 W| 788.8 W| 1171.6 W
Power consumption (Idle)| 32.9 W| 39.5 W| 53.0 W
Dimensions WxDxH (Handle excluded)| 482.6x266x88mm| 482.6x304x88mm
Weight| 6.00Kg| 6.15Kg| 6.35Kg
All product characteristics are subject to variation due to production
tolerances.
NEEC AUDIO BARCELONA S.L. reserves the right to make changes or
improvements in the design or manufacturing that may affect these product
specifications.
For technical queries contact your supplier, distributor or complete the
contact form on our website, in Support / Technical requests.
Motors, 166‐168 08038 Barcelona ‐ Spain ‐ (+34) 932238403
information@ecler.com
www.ecler.com
Documents / Resources
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ecler eLPA2-650 Light Stereo
Amplifier
[pdf] User Manual
eLPA2-650, eLPA2-950, eLPA2-1400, eLPA2-650 Light Stereo Amplifier, Light
Stereo Amplifier, Stereo Amplifier, Amplifier
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ecler eLPA2-650 Light Stereo
Amplifier
[pdf] User Manual
eLPA2-650 Light Stereo Amplifier, eLPA2-650, eLPA2-950, Light Stereo
Amplifier, Stereo Amplifier, Amplifier
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ecler eLPA2-650 Light Stereo
Amplifier
[pdf] User Manual
eLPA2-650, eLPA2-950, eLPA2-1400, eLPA2-650 Light Stereo Amplifier, Light
Stereo Amplifier, Stereo Amplifier, Amplifier
|
ecler eLPA2-650 Light Stereo
Amplifier
[pdf] User Manual
eLPA2-650, eLPA2-950, eLPA2-1400, eLPA2-650 Light Stereo Amplifier, Light
Stereo Amplifier, Stereo Amplifier, Amplifier
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