Penza Audio PJ-4K2, PJ-3K2, PJ-2K2 is a rugged and most reliable Amplifier for professionals requiring sonically superior high-power sound performance. It has in-built frequency controls (BASS/MID/TREBLE) which enable precise and. accurate tonal setting of sound quality. 2 Channels for Stereo DJ Programmers. High fidelity sound output at low distortion. Individual bar graph for each channel with dip indication. Stereo/Mono Selector switch. Short circuit, Overload & over-temperature protection. Force cooling for both channels.
Dual Channel Amplification: Two independent channels for stereo sound or separate speaker zones.
High Power Output: Delivers up to ~4200 W maximum total output power for powerful audio across large venues.
Wide Frequency Response: Typically covers a broad range (e.g., 50 Hz–15 kHz ±3 dB) so both bass and midrange are reproduced clearly.
Versatile Speaker Support: Compatible with 4 Ω, 8 Ω, and 16 Ω speaker loads for flexible system matching.
Balanced Connectivity: Works with professional mixers and audio sources through standard input options (e.g., XLR).
Protection Circuits: Built-in safeguards against overheating, short circuits, and DC faults for reliable operation.
Cooling System: Fan cooling to maintain stable operation during extended use.
Low Distortion & Clean Sound: Engineered for balanced audio with minimal distortion even at high output levels.
Durable Construction: Designed for professional installations and road/rig use.
The PJ 4K2 is a professional dual-channel power amplifier built for high-power audio reinforcement in live sound systems, PA setups, DJ rigs, events, concerts, auditoriums, and clubs. It delivers very strong output power across two channels, providing clean, balanced sound even under heavy loads. Designed with robust circuitry and reliable cooling, this amplifier is suitable for demanding audio environments where power, clarity, and durability matter.
Many PJ 4K2 variants (like YOGIPRO YJ-4K2HD) also include features such as broad frequency response, professional-grade input/output connectivity, and built-in protection systems for over-temperature, short circuits, and other faults.
| POWER OUTPUT | 2300+2300W MAX, 2Q 2250+2250 RMS |
| TONE CONTROL | BASS, MID, TREBLE |
| INPUT IMPEDANCE | l0K Unbalanced |
| CHANNEL SEPARATION | 70dB @ @lKHz |
| DAMPING FACTOR | 500:1 @ SQ Load |
| PROTECTIONS | Temp. DC Short Circuit Overload |
| COOLING | 4 AC Fan (120mm x 120mm) |
| FREQUENCY RESPONSE | 30-20,000 Hz |
| POWER SUPPLY | 220~240V, 50/60Hz |
| DIMENSIONS | W560 x H160 x D500 mm |
| WEIGHT | 40.30 KG |
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