Works as should, front panel looks good, chassis has nicks and scratches from use. This Yamaha SPX 90 signal processor is a high-quality addition to your pro audio equipment. Its brand is a testament to its superior performance and reliability. This rack effect is perfect for enhancing your musical instruments' audio output and can be a valuable tool for musicians and sound engineers alike. Whether you're a seasoned professional or just starting, the Yamaha SPX 90 can take your music to the next level.