The Tanglewood TXS Sub Box is a 60 watt external sub speaker offering a great addition to the T6 amplifier. Tanglewood are providing players with the superb TXS which is a 10 inch extension sub-bass speaker specifically designed to work perfectly with Tanglewoods T6 amp. Featuring level control phase switch and a frequency crossover control that ranges from 50hz – 100hz. This impressive sub-bass speaker is finished in black with Tanglewoods signature brand T logo carved into the foam front providing musicians with a classic Tanglewood aesthetic great sound projection and a neat addition to their T6.