This is a mint condition 4x12 cab made by Line 6. It is not their spider series, it is the top of the line DT series. The speakers and construction are amazing. Its never left my house.It has combination of vintage- and modern-style Celestion speakers (two G12H90s and a pair of Vintage 30s), the DT50 412 gives you the best of both worlds. Plus, its 11-ply poplar enclosure is tough, toneful, and built to last. This cab features a straight-front design, with a slightly slanted baffle that projects the sound right where you need it. And, recessed handles and heavy-duty casters.DT50 412 Guitar Amp Extension Cabinet Features:- 2 x 12" Celestion G12H90 speakers- 2 x 12" Celestion Vintage 30 speakers- 8 ohms- wired for 8 ohms or stereo (4 or 16 ohms)- Straight front with slant baffle- Closed back- Constructed of 11-ply poplar- Solid, heavy-duty casters- Recessed handlesOh...by the way... I don't play Guitar but did buy these things with aspirations of being a great solo bedroom player....