Yamaha PSR-EW425
 is a versatile and portable 76-key touch-sensitive keyboard designed for both experienced players and motivated beginners, featuring a wide range of high-quality sounds and robust performance features. It is well-regarded as an excellent gigging instrument due to its powerful speakers and comprehensive connectivity. 
 
Key Features and Specifications
The PSR-EW425 comes packed with features that enhance both creativity and performance, including a newly developed tone generator for improved sound quality. 
Voices & Styles: It offers 820 high-quality instrument voices (including premium organ sounds and Super Articulation Lite voices for realistic instrument simulation) and 290 automatic accompaniment styles.
Effects: The keyboard includes 2 channels/41 types of DSP insertion effects, delays, and vocal effects for the microphone input.
Controls: Expressive control is provided via two Live Control Knobs, a pitch bend wheel, and the innovative Motion Effect functionality.
Audio System: It features a powerful 12W + 12W speaker system, a headphone jack for private practice, a microphone input, and individual L/R outputs, making it suitable for performing in small venues.
Connectivity: Connectivity options include USB to Host and USB to Device ports for seamless audio and MIDI interfacing with a computer or flash drive.
Groove Creator & Sampling: The Groove Creator function allows for dynamic music creation, while Quick Sampling lets you add your own audio content at the right time. 
 
Experts from Equipboard praise its "HUGE Value" and impressive sound quality, noting its suitability for both beginners and seasoned players who value experimenting with sounds.
The 76 full-sized, touch-sensitive, synth-action keys are considered good, though some advanced players might prefer a fully weighted feel.
The powerful 24W total speaker output (12W + 12W) is a major advantage, considered sufficient for performing in small venues.
The extensive connectivity, including the built-in audio interface and mic input, is a top feature for musicians looking to record or collaborate.
The optimized control panel with Direct Category Access buttons is an improvement over previous models, making it faster to navigate sounds and functions.