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Related Manuals for Ecler GPA2-400ES
Summary of Contents for Ecler GPA2-400ES
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Page 1: User Manual
GPA2-400ES AMPLIFIERS Stereo High-efficiency Amplifier USER MANUAL... -
Page 2: Table Of Contents
INDEX IMPORTANT REMARK ......................3 IMPORTANT SAFETY INSTRUCTIONS ................3 IMPORTANT NOTE ........................ 5 INTRODUCTION ........................5 4.1. Main features ..........................5 INSTALLATION ........................6 5.1. Placement, mounting, cooling ....................6 5.2. Mains connection ........................6 5.3. Input signal connections ......................7 5.4. -
Page 3: Important Remark
1. 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. - Page 4 8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 9. 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.
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Page 5: Important Note
4. INTRODUCTION Ecler GPA2-400ES power amplifier offers the renowned professional reliability of all Ecler amplifiers at an affordable price. Ecler GPA2-400ES is a stereo amplifier with power outputs of 360 and 720W per channel at 4. All models use very high- performance technology, Energy Star certified auto standby function and convection cooling, with height of 2 rack units. -
Page 6: Installation
5. INSTALLATION 5.1. Placement, mounting, cooling The GPA2-400ES amplifier is presented in standard 19” rack format and is 2 units high. It is important that the amplifier, as a heat source, is not placed next to other equipment nor exposed to high temperatures. The built-in convection cooling requires at least one free rack unit (empty space) both above and below each amplifier to ensure a correct air flow. -
Page 7: Input Signal Connections
The filter of the GPA2-400ES, which has a Butterworth shaped response with 18 dB/oct slope, has a cut-off frequency of 50 Hz and can be switched on or off via a switch on the rear panel. -
Page 8: Limiter Circuit
5.5. Limiter circuit This system is an always active protection inside the GPA2-400ES of amplifiers. The ANTICLIP circuitry constantly analyses harmonic distortion caused by excessive signal excursion at the power amplifier's output and automatically reduces the input level in order never to exceed 5% total harmonic distortion. -
Page 9: Operation And Usage
ATTENTION: Terminals 1+ and 1- should only be used in case of “STEREO” or “MONO” mode and terminals 1+ and 2- in “BRIDGED” mode. Any other combination may impair final audio quality When operating in BRIDGED mode, always make sure that the resulting load impedance of the installation is never below 5.3. -
Page 10: Indicators
6.3. Indicators GPA2-400ES amplifiers include a simple yet effective indication system. CLIP/STBY indicators show the absence of loudspeaker output signal. These indicators may light up for following reasons: 1. During start-up, until the STANDBY time has passed. This time period is needed for the internal operating voltages to settle. -
Page 11: Function Diagram
8. FUNCTION DIAGRAM 9. FUNCTION LIST 1. CLIP/STBY indicator CH 1 2. SIGNAL PRESENT indicator CH 1 3. Input attenuator CH 1 4. THERMAL protection indication 5. Input attenuator CH 2 6. SIGNAL PRESENT indicator CH 2 7. CLIP/STBY indicator CH 2 8. -
Page 12: Technical Characteristics
10. TECHNICAL CHARACTERISTICS POWER 20-20kHz 1% THD: 1 Channel @ 4 390 WRMS 1 Channel @ 8 280 WRMS All Channels @ 4 350 WRMS 1 Bridged Channel @ 8 700WRMS Frequency response (-1dB, -3dB) 20Hz - 40kHz Filter (High-Pass) 3rd order Butterworth 50Hz THD+Noise @ 1kHz Full Pwr. -
Page 13: Block Diagram
11. BLOCK DIAGRAM... - Page 14 12. CONFIGURATION DIAGRAM...
- Page 15 NEEC AUDIO BARCELONA S.L. reserves the right to make changes or improvements in the design or manufacturing that may affect these product specifications. Motors, 166‐168 08038 Barcelona ‐ Spain ‐ (+34) 932238403 | information@ecler.com www.ecler.com...