Description
The Yamaha PSR-EW425 serves as the flagship model within the standard PSR-E portable arranger series. Differentiating itself immediately with an extended 76-key bed, it bridges the gap between standard 61-key arrangers and professional 88-key stage pianos. It is engineered with high-output amplification and premium organ sounds imported directly from Yamaha’s professional YC series stage keyboards.
Its primary real-world application is for gigging keyboardists, worship band musicians, and advanced home arrangers who require the extended range for split-keyboard playing (e.g., bass in the left hand, piano in the right) and enough onboard volume to cut through a live band mix without external PA support.
Who Is This For?:
This keyboard is tailored for live performers, church musicians, and intermediate producers who need a wider 76-key range for complex arrangements. It is perfectly suited for players who demand premium, tweakable organ and synth patches alongside robust auto-accompaniment for solo gigs.
Key Features:
76-Key Extended Range
The inclusion of 76 touch-sensitive keys allows players to perform classical repertoire that expands beyond the standard 5-octave limit of 61-key models. Furthermore, it provides ample physical space to utilize the keyboard’s “Split” function, assigning a dedicated bass or chord patch to the lower octaves without crowding the right-hand melody.
Premium YC-Series Organ Sounds
Yamaha has integrated high-end organ samples derived directly from their professional YC stage keyboards. Combined with the onboard DSP effects and assignable live control knobs, players can manipulate rotary speaker speeds and distortion in real-time, delivering an authentic tonewheel organ experience on stage.
Mega Boost Amplification
The PSR-EW425 features a powerful 12W + 12W amplification system, significantly louder than standard portable keyboards. Additionally, a dedicated “Mega Boost” button adds +6dB of volume immediately. This is crucial for buskers or musicians practicing with acoustic drummers, ensuring the keyboard is heard clearly without relying on external keyboard amps.
Specifications Table:
| Specification | Detail |
| Number of Keys | 76 |
| Action Type | Organ-style, Touch Responsive |
| Polyphony | 64 Notes |
| Number of Voices | 820 |
| Amplifiers | 12W x 2 |
| Special Features | Mega Boost (+6dB), Live Control Knobs |
| Connectivity | L/R Line Outs, USB TO HOST, Mic Input |
| Weight | Approx. 8.3 kg |


