Rhagymadrodd
Y Cefnautage HCF-PRO-20 is a robust 2-channel Class H power amplifier designed for stable operation at 2 ohms in stereo mode. It delivers up to 2,070 watts at 4 ohms in bridge mode, providing clear and stable sound output. This amplifier is suitable for high-frequency applications, fixed installations, and DJ setups, offering reliable amplification for various audio environments.
Cyfarwyddiadau Diogelwch
- Ffynhonnell Pwer: Cysylltwch y amplifier only to an AC power source within the specified voltage range (120V ~ 60Hz, 1700 Watts).
- Awyru: Ensure adequate ventilation around the unit. Do not block ventilation openings. Maintain at least 10 cm (4 inches) of clear space around the ampllewywr.
- Lleithder: Peidiwch ag amlygu'r amplifier to rain or moisture. Avoid placing liquid-filled objects on the unit.
- Sylfaen: Sicrhewch bob amser y amplifier is properly grounded to prevent electric shock.
- Gwasanaethu: Refer all servicing to qualified service personnel. Do not attempt to open the amplifer casing.
- Lleoliad: Gosodwch y ampgosodwch y lifer ar arwyneb sefydlog, gwastad. Osgowch ei osod ger ffynonellau gwres neu mewn golau haul uniongyrchol.
Nodweddion
- 2-channel Class H power ampllewywr.
- Capable of stable operation at 2 ohms in stereo mode.
- Delivers up to 2,070 watts at 4 ohms in bridge mode.
- Dibynadwy amplification for various audio applications.
- Simple controls for easy sound adjustment.
Rheolaethau a Chysylltiadau
Panel blaen

Delwedd: Blaen view of the Backstage HCF-PRO-20 Power Amplifier, showing the power switch, input level controls, and LED indicators for power, limiter, and signal levels for each channel.
- Newid Pwer: Toglo'r amplifier ymlaen / i ffwrdd.
- Input Level Controls: Rotary knobs for adjusting the input sensitivity of Channel 1 and Channel 2.
- Dangosyddion LED:
- Pwer: Yn goleuo pan fydd yr uned yn cael ei bweru ymlaen.
- Cyfyngwr: Indicates when the built-in limiter is active to prevent clipping.
- Arwydd: Shows the presence and level of the input audio signal (-20 dB, -10 dB, -5 dB, 0 dB).
Panel Cefn

Delwedd: Cefn view of the Backstage HCF-PRO-20 Power Amplifier, displaying input connectors (XLR, TRS), output connectors (binding posts, Speakon), mode switches (Normal, Stereo, Bridge), low-cut filters, input sensitivity DIP switches, and the AC power inlet with fuse.
- Cysylltwyr mewnbwn: XLR and 1/4" TRS balanced inputs for Channel 1 and Channel 2.
- Input Thru: XLR output for daisy-chaining the input signal to another ampllewywr.
- Cysylltwyr Allbwn: Binding posts and Speakon connectors for connecting loudspeakers for Channel 1 and Channel 2.
- Newid Modd: Selects between NORMAL (dual mono), STEREO, and BRIDGE operating modes.
- Hidlydd toriad isel: Switches to activate a low-cut filter (e.g., 20Hz, 200Hz) for each channel.
- Input Balance/Sensitivity DIP Switches: Allows adjustment of input sensitivity (e.g., 0 dB, -3 dB, -6 dB, -12 dB).
- Switsh Lifft Tir: Helps eliminate hum by disconnecting the signal ground from the chassis ground.
- Cilfach bŵer AC: Standard IEC power connector for the main power cable.
- Daliwr ffiws: Contains the main protective fuse (F 15A 250V).
Gosod
- Lleoliad: Swydd y amplifier in a well-ventilated area, away from direct heat sources. Ensure it is securely mounted if rack-mounted.
- Pwer i ffwrdd: Sicrhau y amplifier's power switch is in the OFF position before making any connections.
- Cysylltiadau Mewnbwn: Cysylltwch eich ffynhonnell sain (cymysgydd, cyn-gyflwynydd)amplifier) to the XLR or 1/4" TRS input connectors on the rear panel for Channel 1 and Channel 2.
- Cysylltiadau Allbwn: Connect your loudspeakers to the appropriate output connectors (Speakon or binding posts). Ensure correct polarity (+ to +, - to -).
- Dewis Modd: Set the MODE switch on the rear panel to STEREO for two separate channels, NORMAL for dual mono, or BRIDGE for mono operation with increased power. Refer to your speaker impedance for bridge mode compatibility.
- Hidlydd toriad isel: If desired, engage the low-cut filter switches to remove unwanted low frequencies.
- Cysylltiad Pwer: Connect the supplied AC power cable to the amplifier's AC inlet and then to a grounded power outlet.
Gweithredu
- Pŵer Cychwynnol Ar: Turn on your audio source first, then switch the amplifier's power to ON.
- Addasiad Cyfaint: Start with the input level controls on the front panel set to minimum. Gradually increase them to achieve the desired output volume.
- Dangosyddion Monitro: Observe the SIGNAL LEDs to ensure a healthy input signal. The LIMITER LEDs should only flash occasionally during peak signals. If they are constantly lit, reduce the input level to prevent distortion and potential speaker damage.
- Pwer i ffwrdd: Ar ôl gorffen, trowch oddi ar y amplifier first, then your audio source.
Cynnal a chadw
- Glanhau: Defnyddiwch lliain meddal, sych i lanhau tu allan y ampPeidiwch â defnyddio glanhawyr hylifol na thoddyddion.
- Awyru: Regularly check that the ventilation grilles are free from dust and debris to ensure proper airflow.
- Amnewid ffiws: Os bydd y amplifier does not power on, check the fuse in the rear panel. Replace it only with a fuse of the same type and rating (F 15A 250V).
- Storio: Os yn storio'r amplifier for an extended period, ensure it is in a dry, dust-free environment.
Datrys problemau
| Problem | Achos Posibl | Ateb |
|---|---|---|
| Dim pŵer | Power cable disconnected, blown fuse, power outlet issue. | Check power cable connection. Replace fuse (F 15A 250V). Test power outlet with another device. |
| Dim allbwn sain | Input cables disconnected, speaker cables disconnected, input level too low, incorrect mode selection. | Verify all input and output cable connections. Increase input level controls. Check MODE switch setting. |
| Sain gwyrgam | Input level too high (LIMITER LED constantly on), faulty cables, speaker impedance mismatch. | Reduce input level. Check and replace faulty cables. Ensure speaker impedance matches ampmanylebau lifier. |
| Hum neu sŵn | Ground loop, faulty cables, interference. | Engage the Ground Lift switch. Use shielded cables. Ensure proper grounding of all equipment. |
Manylebau
| Brand | Cefnautage |
| Model | HCF-PRO-20 |
| Gwneuthurwr | Sensey Electronics |
| Nifer y Sianeli | 2 |
| Pŵer Allbwn | 2000 Watt (RMS) |
| AmpDosbarth lifier | Dosbarth H |
| Math Mowntio | Mynydd Annibynnol |
| ASIN | B088P9DKYK |
Gwarant a Chefnogaeth
For warranty information and technical support, please refer to the documentation provided with your purchase or contact Backstage customer service directly. Details regarding specific warranty periods and service procedures are typically available from the manufacturer or authorized distributors.