ecler HSA300 High Impedance Amplifier User Manual
- June 3, 2024
- ecler
Table of Contents
HSA300
AMPLIFIERS
High Impedance Amplifier
USER
MANUAL
IMPORTANT REMARK
WARNING: SHOCK HAZARD – DO NOT OPEN AVIS: RISQUE DE CHOC ELECTRIQUE
– NE PAS OUVRIR
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. 1
- Disconnecting from mains: When switching off the POWER switch, all the functions and light indicators of the unit will be stopped, but fully disconnecting the device from mains is done by unplugging the power cable from the mains input socket. For this reason, it always shall remain easily accessible.
- 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 the unit.
- The apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids, such as vase
**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 Ecler HSA300 High Impedance Amplifier!
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.
Ecler HSA300 comes with a 3-year warranty.
INTRODUCTION
The HSA300 is a single-channel power amplifier with a directly amplified high
impedance output (100V line).
4.1. Main Features
-
SPM 100 Technology – N Channel direct high impedance amplification (100V line), without output transformers, which has the following advantages over the classic amplification for a 100V line using transformers:
o Better frequency response in the low band of the audible spectrum (bass frequencies), in the absence of the usual degradation for this part of the spectrum caused by the saturation of the transformer cores
o High performance
o Low weight -
Thermal protection
-
Overload protection
-
Anti-clip” or anti-saturation system against strong input signals
INSTALLATION
5.1. Placement and assembly
The HSA series amplifiers come in 19″ rack module format, two units high.
It is important that the amplifier, as a heat source, is not placed next to
other equipment nor exposed to high temperatures.
If the installation is done inside rack cabinets enclosed by doors, it is
highly recommended to fit these with forced ascending ventilation, installing
fans at the top and bottom. This upward flow of ventilation will help in
dissipating the heat generated inside.
In order to favour as far as possible the proper heat dissipation of the
equipment units installed in rack cabinets, it is advisable not to place the
power amplifiers under other
devices, but rather above these.
The HSA amplifiers are supplied with plastic washers so they can be mounted in
a rack without damaging the mounting flanges.
5.2. Mains connection
The amplifier is powered with alternating current, depending on the country,
110-120, 220-240V 50/60Hz. (see specifications plate on the device), and its
maximum power draw is 482VA.
The amplifier must be connected to proper grounding ( resistance, Rg=30 or
less). Avoid intertwining the mains cable with the shielded cables that carry
the audio signal, as this could lead to interference and humming.
In order to protect the unit from an eventual electrical overload or momentary
power peaks from the internal circuits it is fitted with a fuse. Should it
ever blow, unplug the unit from mains and replace it with an identical one. If
the new fuse blows again, contact our Authorized Technical Service
immediately.
CAUTION: IN NO EVENT SHOULD A FUSE OF HIGHER VALUE THAN THE NOMINAL VALUE
BE INSTALLED.
5.3. Signal input connections
On it rear panel, the HSA300 amplifier has an analogue, balanced and line
level input signal.
The signal input connectors are three pin Euroblock connectors (11). The
assignment of the connections is as follows:
Live or direct signal > Terminal +
Cold or inverted signal > Terminal –
Ground >Terminal ⊥
For unbalanced connections short the – terminal to ground.
The input impedance is 22k (balanced) with a nominal sensitivity of 0dBV
(1V). This impedance allows for a large number of amplifiers to be connected
in parallel without
degrading the sound quality.
5.4. Output connections
The OUTPUT section on the rear panel is fitted with a two pin (10) Euroblock
connector.
During the wiring tasks of one or more amplifiers, always respect the relative
polarity of the outputs (+ and – markings on each output connector), cabling
and speakers.
5.5. Internal switch for pass-high filters
Inside the amplifier there is a (“jumper”) switch to enable / disable the
high-pass filter of the amplifier, with a cut-off frequency set at 70Hz and
with a slope of 18dB / octave. It is recommended that in certain applications
the high pass filter should act on the 100V line, especially when the audio
playback content is primarily vocal (paging
announcements, for example). Refer to section 10. Block Diagram and 9
Configuration Diagram for further information.
OPERATION AND USAGE
6.1. Turning on
This is done by means of the POWER ON (6) mains switch and the pilot light in
the switch itself will come on.
In a full audio installation it is essential to start up the equipment in the
following sequence: sound sources, mixers, equalizers, processors, active
filters, and finally, the power amplifiers. To shut these down, follow the
reverse sequence. By following this sequence the peaks or transients produced
by switching a device on or off will not affect the next ones in the chain,
preventing these from getting to the speakers, which are the components that
are likely to suffer damage in these cases.
6.2. LED indicators on the front panel
The HSA300 has the following LED indicators on the front panel:
-
SIGNAL presence indicator (4): warns of the presence of a signal at the amplifier’s input. This indicator lights up when the signal present at the input exceeds -35dB
-
OVERLOAD indicator (3): lights up when the channel reaches its power delivery capacity limit, due to a load with an excessively low impedance
-
CLIP cut-off indicator (2): lights up when the signal delivered to the speakers is cut close to the actual cut-off level. This CLIP system takes into account the possible fluctuations in voltage of the power supply, always providing a true reading even though these exist.
It is normal that when operating at high output power, the CLIP indicators light up in synchronisation with the low frequencies, which carry the most energy. Ensure that these indicators do not stay permanently lit during the normal operation of the equipment -
THERMAL heat protection indicator (1): indicates that the amplifier has entered a state of over-temperature protection, its normal operation will be restored when its temperature returns to the normal operating temperature range.
6.3. Volume control on the front panel
The front panel has rotating volume control (5) for the amplifier output
level.
In the packaging of the device, you will find bag with a transparent cap that
can be fitted to the rotating control on the front panel. Its function is to
protect the volume setting from accidental changes while the installation is
being used. Once inserted it is necessary to use a flat screwdriver or a
similar tool to remove it.
The transparent cap on the volume controls are for single use only. Additional
units can be purchased as spare parts (ref: FCBOTD240100)
CLEANING
The front panel should not be cleaned with solvents or abrasive substances because the silk printing could be damaged. To clean it, use a soft cloth slightly wet with water and neutral liquid soap; dry it with a clean cloth. Ensure that water never gets into the amplifier through the holes of the front panel.
DIAGRAMS AND LIST OF FUNCTIONS
1 THERMAL, heat protection indicator
2 CLIP cut-off indicator
3 OVERLOAD indicator
4 SIGNAL presence indicator
5 Volume
6 POWER switch and start up pilot light| 7 Mains socket
8 Fuse holder
9 GND grounding terminal
10 OUTPUT screw-type connectors
11 INPUT screw-type connectors
12 Fan
---|---
CONFIGURATION DIAGRAM
OFF HIGH PASS FILTER
BLOCK DIAGRAM
TECHNICAL CHARACTERISTICS
HSA300
Power Output
RMS Power @ 10% THD RMS Power @ 1% THD: Frequency response (-1dB, -3dB) Filter
(High-Pass) 3rd order Butterworth THD+Noise @ 1kHz Full Power SNR Damping
factor 1kHz @ 8Ω Input sensitivity / Impedance Anticlip @ 2ddBV input Mains
voltage| 302 WRMS @ 100V line
254 WRMS @ 100V line
30Hz – 35kHz 70Hz
<0.07% >85dB
N/A 0dBV/>20k N/A
115V/230V. Voltage changed internally (NOT BY
SWITCH)
Power consumption
pink noise, 1/8 power pink noise, 1/3 power| 218VA @ 32Ω
319VA @ 32Ω
General
Dimensions Weight| 482.6x88x285mm 8.4kg
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 |
[email protected] |
www.ecler.com
Documents / Resources
|
ecler HSA300 High Impedance
Amplifier
[pdf] User Manual
HSA300 High Impedance Amplifier, HSA300, High Impedance Amplifier, Impedance
Amplifier, Amplifier
---|---
|
ecler HSA300 High Impedance
Amplifier
[pdf] User Manual
HSA300 High Impedance Amplifier, HSA300, High Impedance Amplifier, Impedance
Amplifier
|
ecler HSA300 High Impedance
Amplifier
[pdf] User Manual
HSA300, HSA300 High Impedance Amplifier, High Impedance Amplifier, Impedance
Amplifier, Amplifier