Musicians in search of a unique sound for their personal or group projects can benefit from the DOD FX90 Delay pedal. Its production quality and extensive durability boost your performance whether you're taking a show on the road or just rehearsing at home. This stomp box has a 1/4-inch input for a single instrument and a 1/4-inch output for an amp. The DOD FX90 is an innovative analog delay pedal that uses bucket-brigade technology to produce clear, crisp, and efficiently bright delays and echoes that sound great coming from the pickups of a crunchy guitar. The delay time ranges from 60ms, which is optimal for country and rockabilly slap back, all the way up to 300ms. The longer delay times help you nail David Gilmour-style leads and rhythms while performing or practicing on your electric guitar. In terms of technical specifications, this product has an input impedance of 500k ohms, an output impedance of 4.7k ohms, a dry bandwidth of 30 Hz to 25 kHz, and a delay bandwidth of 30 Hz to 1.3kHz. Furthermore, the trio of knobs, which include Delay, Mix, and Repeat functions, keeps the controls simple for the player's usage yet effective in overall sound production. As with most delay pedals, when you push the repeat control to the limits, the FX90 starts to self-oscillate, which creates a feedback loop of stacked delay that is useful for creating moments of barely controlled chaos and howling feedback to either end songs or join them together while playing live. The vast range of utilities associated with this pedal has proven to be beneficial for stage performance, rehearsals, general musical work, and digital recording purposes although live music is where this device really excels in results. Not only does the DOD FX90 produce great sound and effects, but it looks great as well. The blue finish provides a very attractive appearance to stand out on stage or improve the ambiance in your recording studio. This pedal is sure to make a great addition to your collection of guitars, effect pedals, and other gear due to its versatility and portability. Weighing 3.1 pounds and measuring only 2.4 by 6 inches, the device can easily be taken on the road when you have a live performance to prepare for. The pedal is powered by batteries or a dedicated power supply.Despite having 12 distinct circuit revisions throughout the production history of DOD FX90s, which began in mid-1984, this product continues to maintain the MN3005 BBD analog chip that is so common in many of today's modern effects pedals. The extravagant design, ease of use, and versatility of functions of the DOD FX90 make it a clear-cut choice for guitarists and producers alike. This device can lend a variety of unique effects to any new, unique musical project.