The WA-2A is an analog compressor that delivers professional sound quality. - Brand: Warm Audio - Model: WA-2A - Output Level Meter: VU meter - Input/Output Adjustment: Limiter/Compressor Thank you for viewing. Purchased new from Soundhouse about 3 years ago. Although it hasn't been used much, there is some clouding on the toggle switches, scratches on the top panel, and some minor damage to the screw holes from rack mounting. It is fully functional. The included accessory is the power cable.