⭕ This is the legendary Cello Palette Preamplifier, and the Cello Duet Power Amplifier. The Pre-amplifier is one of the cleanest, quietest and most versatile and is noted for being one of the ONLY High End Preamps with a Equalized Tone Control, so that unlike many preamps, this gives the listener ultimate control over detailing the sound to his or her liking. Most Preamps give you a volume control, thats it. This is a revered, sought after piece for this reason alone. The Duet Power Amp is a delightful, lush sounding BRUTE with 350 Watts per channel at 8 ohms, 525 watts per channel at 4 ohms. This is enough power to fill a Dance Club, let alone a nice sized room at your home. You can shake the walls, if you want, but this amp sounds silky smooth and sweet, with tons of headroom, at low volumes as well. These units are both in truly clean. Cosmetically, they are both gorgeous, with no marks or scratches anywhere. They come with the original power supply, and the original Cello connectors. Can ship.