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The Yamaha PX3 is a solid choice for DJs needing a reliable and fairly powerful amplifier. It delivers 2 x 500 watts at 4 ohms, which is sufficient for most small to medium DJ setups, providing clear and strong sound without distortion. The amplifier is notably lightweight—about 50% lighter than previous Yamaha models—making it easier to transport to gigs. It includes useful onboard features like digital signal processing (DSP) and Yamaha's D-Contour for better sound shaping, which helps maintain audio quality even at higher volumes.
The unit also offers convenient tools such as a configuration wizard and panel lock to prevent accidental changes, along with event logging, which can be helpful for troubleshooting. In terms of build, it uses metal and plastic to balance durability and weight. The product dimensions are somewhat bulky for its power class, so users should consider the size when planning their setup. The amplifier has a respectable signal-to-noise ratio and keeps distortion low, ensuring clean sound output.
This amplifier suits DJs who want a dependable, easy-to-handle power amp with good sound-shaping features, especially if portability is important. Those needing very high power or advanced connectivity might want to explore other models.
Great Choice
The QSC RMX2450a is a solid choice for DJs and audio professionals looking for a reliable power amplifier that delivers professional quality performance. With a power output of 800 watts across two channels, it provides strong audio support for various events, making it suitable for both small gigs and larger venues. Its high-current toroidal transformers enhance its performance at lower impedances, specifically 2 ohms, which is a definite plus for those who need extra power without compromising on sound quality. The independent clip limiters help in reducing distortion, ensuring that your sound remains clean even at higher volumes, which is crucial during live performances.
One standout feature is the selectable low-frequency filters at 30 Hz and 50 Hz, which help protect your speakers and improve sound clarity. This functionality is especially valuable for DJs who want to avoid damaging their equipment while still delivering a powerful bass response.
However, this amplifier isn't without its drawbacks. Its size (28 x 6 x 24 inches) can be cumbersome for mobile setups, and it may be less appealing for those with limited space. Additionally, while it includes various inputs like balanced 1/4 inch TRS and XLR, it lacks modern connectivity options like Bluetooth or USB, which could be a downside for some users looking for convenience. In terms of cooling, it’s designed to handle heavy use, but the cooling system specifics aren't detailed. Lastly, while the THD and SNR values are not explicitly stated in the specs, these factors are crucial for sound clarity and performance, and potential buyers may want to look for that information before making a decision. The QSC RMX2450a is a great option for dedicated DJs and audio professionals who prioritize sound quality and performance, but those needing portability or advanced connectivity might want to explore other options.
The Rockville RPA16 is a powerful 2-channel amplifier well-suited for DJs and live sound use, offering up to 1500 watts RMS per channel at 4 ohms and 3000 watts bridged into one channel for subwoofers. This makes it capable of driving large speaker setups with plenty of headroom. It supports 4 and 8 ohm speakers, providing flexibility depending on your speaker system. The amp maintains low distortion (less than 0.04% THD) and a high signal-to-noise ratio (over 100dB), which means your sound stays clear and free from unwanted noise during performances. Its built-in limiter and clipping indicators help protect your speakers from damage, a valuable feature for DJs who push volume levels.
The cooling system uses quiet, high-velocity fans, which effectively manage heat without adding distracting noise. Inputs are balanced with a high impedance for compatibility with professional audio gear, and the amplifier offers versatile modes (stereo, bridged, parallel) and crossover settings that help tailor output for different speaker arrangements. It also includes helpful front-panel displays showing volume and temperature, plus a rugged rack-mount design for easy integration into pro setups.
At around 41 pounds, it is a bit heavy and may not be ideal for quick, frequent transport. The size and power make it best suited for stationary or semi-permanent DJ rigs rather than portable use. The RPA16 provides strong power, solid sound quality, and useful protective features, making it a reliable choice for DJs needing a robust amplifier for club or event sound systems.