We proudly present the worlds first Vocal Mixing Amplifier with Dual Digital Processors... the DA-9800 RV! Singers and KJ's can now create the "ideal" vocal sound by blending the Digital Echo effect with the new DSP Reverb, adding a near 3D sound to their Microphone Channels! For music, a handy built-in Sonic Enhancer will transform the sound of your music from a "background" sound to an "outward and lively" sound. Also, with the built-in Studio Quality Digital Key Controller, users can change the key of their music 15-steps for a total of 7 whole notes, so no more missing out on songs that aren't in your natural vocal range! The DA-9800RV is soon to be the industry standard and the unit singers ask for when they want the best!