The craftsmanship of the 786 is as stunning as the engineering is innovative. Astriking blue front panel machined from 1/4" aircraft aluminum, hand-crafted solid aluminum knobs, LEDs mounted individually in machined stainless steel housings, custom VU meters with peak indicators, and heavy gauge chassis solidify the 786 as the benchmark preamplifier for decades to come. The 786 combines the best preamplifier features and an absolutely pristine audio path. In addition to having +48V phantom power as well as a phase reverse switch, the 786 also features a patent-pending EQ circuit called (spectrum) with frequency cut and boost up to 40kHz. An 11-position coarse gain switch sets the gain between +10 and +60dB, while the fine gain control varies between -3 and +3dB. Levels may be monitored on peakprogram VU meters with adjustable reference levels. The signal path consists of a transformer-coupled,
discrete-design premium input stage utilizing the proprietary dbx M8a Mic Pre-Amp Module.
(Spectrum), a unique variable high-frequency equalization circuit employed in the mic pre-amp enhances the high frequency spectral content of the signal while maintaining phase integrity. The (Detail) control varies the amount of high frequency shelving boost at the frequency determined by the Spectrum control. The combination of the Spectrum and Detail controls allow pristine high frequency equalization adjustments without the added (hash) of traditional high-frequency EQ topologies. Premium active electronics, precision 0.1% and 1% metal film resistors, great sounding temperature stable polypropylene capacitors, high-reliability board-to-board connectors with gold-palladiumnickel contacts, Jensen¨ transformers, gold plated Neutrik¨ XLRs, rare earth magnet relays with gold contacts in a hermetically sealed nitrogen environment, military grade glass epoxy circuit boards, to mention a few, contribute to the most technologically advanced preamplifier in the world.
- 130dB Dynamic Range
- High-Drive output transformer drives 1000 ft. of Belden at .007% THD
- +48V Phantom Power, Phase Reverse, -20dB Input Pad, Super Low-Z input switch
- Proprietary High Frequency EQ circuit with cut/boost to 40kHz.
DBX 786 cut sheet