Radial J48 MK2 48V Phantom Power Active Direct Box Active 48-Volt phantom powered direct box -15dB pad 180 degree polarity reverse Merge function to mix 2 signals to mono 80Hz high-pass rumble filter Ground lift Welded I-beam construction Minimal power draw with high rail voltage Will not choke when driven hard Low intermodulation distortion The J48 is capable of peak transients to 9 volts without choking The result is lower harmonic distortion, half the inter-modulation distortion and significantly improved dynamics over other DIs Features include a -15dB pad, 180&deg polarity reverse, a unique merge function to mix two signals to mono, an 80Hz high-pass rumble filter, and ground lift It's built to handle the abuse on the road and features a unique welded I-beam construction