1. Mawu Oyamba
This manual provides comprehensive instructions for the safe and efficient operation of your Ahuja SSA250M PA Mixer Amplifier. Please read this manual thoroughly before use and retain it for future reference.
The Ahuja SSA250M is a high-wattage Public Address (PA) mixer amplifier designed for various sound reinforcement applications. It features multiple input options, robust power output, and essential protection mechanisms.
2. Malangizo Ofunika Otetezedwa
To prevent fire, electric shock, or product damage, always follow these basic precautions:
- Werengani malangizo onse.
- Osagwiritsa ntchito chipangizochi pafupi ndi madzi.
- Kuyeretsa kokha ndi nsalu youma.
- Musatseke mipata iliyonse ya mpweya wabwino. Ikani motsatira malangizo a wopanga.
- Osayika pafupi ndi zotenthetsera zilizonse monga ma radiator, zolembera zotenthetsera, masitovu, kapena zida zina (kuphatikiza ampLifiers) zomwe zimatulutsa kutentha.
- Osagonjetsa cholinga chachitetezo cha pulagi ya polarized kapena grounding.
- Tetezani chingwe chamagetsi kuti chisayendetsedwe kapena kukanikizidwa, makamaka pamapulagi, zotengera zosavuta, komanso pomwe amatuluka pazida.
- Gwiritsani ntchito zomata / zowonjezera zomwe wopanga adazipanga.
- Chotsani chipangizochi pa nthawi yamphezi kapena chikagwiritsidwa ntchito kwa nthawi yaitali.
- Tumizani mautumiki onse kwa ogwira ntchito oyenerera. Kutumikira kumafunika pamene chipangizocho chawonongeka mwanjira iliyonse, monga chingwe chopangira mphamvu kapena pulagi yawonongeka, madzi atayika kapena zinthu zagwera mu zipangizo, zida zakhala zikukumana ndi mvula kapena chinyezi, sizigwira ntchito bwino. , kapena wagwetsedwa.
3. Zamalonda Zathaview
Mawonekedwe
- 6 Microphone (Mic) Inputs and 2 Auxiliary (Aux) Inputs for versatile connectivity.
- Preamplifier Output and Line Output for connecting to a booster amplifier or for recording.
- Line Input for connecting external mixers or using the SSA250M as a booster power ampwopititsa patsogolo ntchito.
- Resettable circuit breaker provides protection against overload and short circuit conditions.
- Instant transfer to DC power (car battery) in case of AC power failure.
- Frequency Response: 50-15,000Hz ±3dB.
Controls and Indicators (Front Panel)

Chithunzi: Chapafupi view of the Ahuja SSA250M amplifier's front panel, showing individual microphone and auxiliary input level controls, master volume, bass and treble tone controls, output level indicators, and power/overload indicators.
- MIC 1-6 Inputs: 6 individual microphone input jacks.
- MIC/AUX Level Controls: Rotary knobs to adjust the input level for each microphone and auxiliary channel.
- MASTER Volume: Imawongolera kuchuluka kwa zotulutsa zonse za ampwopititsa patsogolo ntchito.
- BASS/TREBLE Controls: Adjusts the low and high frequency response of the audio output.
- OUTPUT LEVEL Indicators: LED bar graph displaying the output signal level.
- Chizindikiro cha MPHAMVU: Imaunikira pamene ampLifier imayatsidwa.
- CHIZINDIKIRO CHAKUCHITA: Illuminates to indicate an overload condition.
- Bwezerani batani: Used to reset the circuit breaker after an overload.
- MPHAMVU Sinthani: Amatembenuza ampchotsegula kapena kutseka.
Connections (Rear Panel)

Image: Rear panel of the Ahuja SSA250M amplifier, showing AC power input, DC power terminals, speaker output terminals, line input, line output, and preamplifier output connections.
- Kulowetsa Mphamvu ya AC: Imalumikizidwa ku magetsi akuluakulu a AC.
- Kulowetsa Mphamvu kwa DC: Terminals for connecting a 24V DC power source, such as a car battery.
- Zotulutsa Zolankhula: Connections for various speaker impedances (COM, 4Ω, 8Ω, 70V, 100V).
- ZOCHITIKA: Input for connecting external audio sources or another ampwopititsa patsogolo ntchito.
- ZOCHITIKA: Output for connecting to another power ampwopititsa patsogolo ntchito.
- PREAMP KUCHOKERA: Output for connecting to a booster ampchojambula kapena chojambulira.
4. Kukonzekera Guide
Kutulutsa
Chotsani mosamala amplifier from its packaging. Inspect for any signs of damage. Retain the packaging for future transport or storage.
Kuyika
Malo a amplifier on a stable, flat surface. Ensure adequate ventilation around the unit to prevent overheating. Do not cover ventilation openings.
Kulumikiza Mphamvu
Mphamvu ya AC
Connect the supplied AC power cord to the AC Power Input on the rear panel and then to a suitable wall outlet (240V AC).
Mphamvu ya DC (Batri)
For DC operation, connect a 24V DC car battery to the DC Power Input terminals on the rear panel, observing correct polarity (+ to + and - to -). The amplifier will automatically switch to DC power if AC power fails.
Kulumikiza Oyankhula
Connect your speakers to the appropriate Speaker Output Terminals on the rear panel. Ensure the speaker impedance matches the amplifier's output impedance (e.g., 4Ω, 8Ω) or use the 70V/100V constant voltage outputs for compatible PA speaker systems.
Kulumikiza Zida Zolowetsa
Maikolofoni
Connect microphones to the MIC 1-6 input jacks on the front panel.
Zida Zothandizira
Connect auxiliary audio sources (e.g., CD player, media player) to the AUX inputs.
External Mixer / Booster Ampwotsatsa
Use the LINE IN for connecting an external mixer. Use the PREAMP OUT or LINE OUT to connect to a booster ampchowulutsira kapena chojambulira zida.
5. Operating Your Ampwotsatsa
Kuyatsa
Ensure all connections are secure and input levels are set to minimum. Press the POWER switch on the front panel to turn on the ampmpulumutsi. Chizindikiro cha MPHAMVU chidzawunikira.
Kusintha Magawo Olowera
Gradually increase the individual MIC/AUX Level Controls for the active input channels until the desired volume is achieved. Monitor the OUTPUT LEVEL indicators to avoid clipping.
Kuwongolera Kwakukulu Kwambiri
Use the MASTER Volume control to adjust the overall output volume of the ampwopititsa patsogolo ntchito.
Kusintha kwa Kamvekedwe
Adjust the BASS and TREBLE controls to fine-tune the audio's low and high frequencies according to your preference or acoustic environment.
Kuyimitsa
Before powering off, reduce the MASTER Volume to minimum. Then, press the POWER switch to turn off the ampwopititsa patsogolo ntchito.
6. Kusamalira
Kuyeretsa
Nthawi zonse kuyeretsa amplifier's exterior with a soft, dry cloth. Do not use liquid cleaners or solvents. Ensure ventilation openings are free from dust and debris.
Kusungirako
Ngati kusunga amplifier for an extended period, disconnect all cables, pack it in its original packaging (if available), and store it in a cool, dry place away from direct sunlight and extreme temperatures.
7. Mavuto
| Vuto | Chifukwa Chotheka | Yankho |
|---|---|---|
| Palibe mphamvu | Power cord disconnected; AC outlet faulty; DC battery discharged; Circuit breaker tripped. | Check power cord connection; Test AC outlet; Recharge/replace DC battery; Press the RESET button. |
| Palibe kutulutsa mawu | Speaker connections loose/incorrect; Input device not connected; Input/Master volume too low; Mute engaged (if applicable). | Verify speaker wiring; Check input device connection; Increase volume controls; Ensure no mute function is active. |
| Phokoso losokoneza | Input level too high (clipping); Speaker impedance mismatch; Faulty speaker/cable. | Reduce input levels; Check speaker impedance compatibility; Test with different speakers/cables. |
| OVERLOAD indicator on | Excessive output load; Short circuit in speaker wiring. | Reduce volume; Check speaker connections for short circuits; Press the RESET button. |
8. Mafotokozedwe aukadaulo
| Kufotokozera | Tsatanetsatane |
|---|---|
| Mtundu | Ahuja |
| Chitsanzo | SSA250M |
| Mphamvu Zotulutsa | 600 Watts (Peak/Max) |
| Chiwerengero cha Channels | 8 (6 Mic, 2 Aux) |
| Kuyankha pafupipafupi | 50-15,000Hz ± 3dB |
| Voltage | 240 Volts AC, 24 Volts DC |
| Makulidwe (L x W x H) | 52.2 x 43.6 x 21.2 Masentimita |
| Kulemera kwa chinthu | 16kg pa |
| Zomangamanga | Durable Metal Chassis |
| Mtundu Wokwera | Surface Mount |
| Kuphatikiza Zida | 1 Electronic Component Ampwotsatsa |
| UPC | 689274295178 |
9. Chitsimikizo ndi Thandizo
For warranty information and technical support, please contact Ahuja customer service or an authorized service center. Details can typically be found on the manufacturer's official website or included warranty card.
Manufacturer: AHUJA RADIOS, 215, Okhla Industrial Estate, New Delhi-110 020, India.





