Features Output Power: 50w or 15w Tubes: 6L6 Dimensions: 20 5/8" wide x 12" tall x 10 1/2" Weight: 41 lbs Description Product Description Clean. Cool. Clever Three simple words that describe this powerful new amp designed for the working musician. Clean- It's no secret Two-Rock amps are known for our beautiful clean tones and the Studio 50/15 is no exception. The 50/15 features a simple pedal-friendly input stage designed to be the perfect platform for you and your music. Simple Treble, Middle, and Bass controls each with their own pull-shift function allow you to tailor the voice of the amp to match your style, compliment your guitars, and deliver the tones you love. Cool- this is the perfect word to describe our cool new power feature. There's nothing like the feel and sound of a large output transformer and 6L6 power tubes. Players love big-stage volume and big-stage tone, but many studios and neighbors do not. Thanks to our new switchable power design, you can now achieve that big feel and tone wherever you go. Flip the Standby switch to the up position and you've got the full 50-watt output section working in all its glory, flip it down and you get the same feel and glory at a manageable 15-watts. Cool. Clever- In the past, effects loops on amps were either passive or active. Passive meant no extra components to mess with your tone, but they also brought the challenge of gain and impedance matching. Active loops took care of the impedance issues, but they could be a challenge to get the levels and gain right. Say hello to the perfect effects loop on the Studio 50/15. This loop can be passive or active and has switchable buffers (impedance matching) and switchable level controls (gain) for both the Send and Return side of the loop. This clever design allows you to interface with vintage and modern effects without the worry of sacrificing your tone or feel. Clever indeed.