In very good condition throughout, fully tested and with power supply and original box. Very small damage to the screen which does not affect viewing of display. 

The Alesis SR18 High-Definition Drum Machine is a digital drum machine known for its extensive sound library and user-friendly interface. Here are some key features and user opinions about the SR18:

• Sound Library: The SR18 boasts a large sound bank, including drum kits, electronic drums, one-shot hits, and modern percussion sounds. Users appreciate the variety and quality of the sounds, which can range from completely electronic to mimicking totally analog drum sounds.
• Effects Engine: It includes an effects engine with reverb, EQ, and compression, allowing users to shape the sound on the fly. This feature is particularly praised for its ability to produce recording or performance-ready sounds.
• Dynamic Articulation: This feature enables sound to change in color and timbre, similar to how acoustic instruments do, providing a more realistic performance experience.
• User Interface: The SR18 is designed to be user-friendly, with 12 velocity-sensitive pads for creating and saving customized patterns and songs. Users can create and save up to 200 totally unique user patterns.
• Portability: The drum machine is battery-powered, allowing users to use it anywhere. It can also be powered by AC, providing flexibility in different settings.
• Sequencer: The onboard sequencer is easy to use, although some users find it a bit tiresome. Sequencing from a computer is recommended for getting the nuances of off-the-grid looseness.
• Customization: Users can create and save their own customized patterns and songs, offering a high degree of personalization.
• Connectivity: It allows users to plug in an instrument, such as a guitar, and play along for complete setup simplicity. Users can also connect a MIDI keyboard for fast, musical low-end creation.
• Bass Line: The bass line feature is on by default and can be turned off permanently by reducing the bass volume to zero and saving the setting. Some users find the bass line feature useful for jamming, while others prefer to turn it off.