Burl 's B1D is a mic preamp with a separate DI input and can be installed in 500 module systems to API standards. It was designed to complement the B2 Bomber ADC and the B80 Mothership, leaving nothing to chance even before the converter. With the proprietary BX3 input transformer and BX4 iron output transformer, the B1D delivers a slightly darker sound compared to the B1 a slightly darker
The B1D is built completely the same as the B1, but features an iron BX4 output transformer that gives it a fearsome rock sound. A fully discrete transistor class A circuit with DC coupling and no capacitors gives the B1 amazing punch on basses, beautiful tonality on guitars, and presence and warmth on vocals, pianos & synths.
The B1D is equipped with both a gain and a level control for the output level. If a saturated sound is required, driving the preamp slightly into overdrive and providing enrichment with harmonics, the detented Gain control can be turned up, and the excess level compensated with the Level control. If, on the other hand, a clean transmission is desired, turn the gain control down a bit and compensate with the level control. For ribbon microphones and other low-impedance sources, the B1D has a transformer-coupled impedance selector switch. The B1D has been tested with the popular Royer R-121 in the low impedance setting, and in this combination makes for sparkling eyes, especially on guitar amps.
The B1D gets the best out of any microphone, whether it's dynamic, condenser or ribbon. In addition, the high-quality DI input makes instrument recording quick and easy. With the pad switch, hot signals and balanced line signals can be fed in via the microphone XLR input on the rear panel. This also allows previously recorded tracks or mixes to be sent through the B1D after the fact, and retain heat and glue. With the B1D you get a reliable and versatile tool for your recording studio, which is sonically one of the greats.