dADB
2-Channel Active Direct Box
The dADB is a two-channel active direct box for connecting instrument, line, or speaker signals to balanced inputs.
The high-impedance 1/4" inputs are buffered and converted by extremely low-noise electronics to deliver isolated, low-impedance outputs. Thru jacks allow the input signal to be sent to an amplifier on stage as well as the XLR output . With an extremely flat, wide frequency response, the dADB is acoustically transparent, even at high input levels.
Both channels feature phase reversal, ground lifts to help reduce hum, low-pass Bessel filters to eliminate high-frequency interference, and up to 40 dB of attenuation.
The active circuitry can operate on phantom power or for over 100 hours on a new 9-volt battery. Active DIs are often a great match for sources like guitars and basses with passive pickups, or acoustic guitars with piezo pickups and no preamp.
The dADB provides a high-fidelity connection to a mixer, PA system, or audio interface, and offers two independent channels with versatile features in a stage-proof steel enclosure.
Features
- 2 Independent Channels
- 1/4" TRS Inputs and Thru Connections
- Balanced XLR Outputs
- Switchable Attenuation (20 dB, 40 dB) per Channel
- Switchable Phase Invert, Ground Lift, and Low-Pass Filter per Channel
- Powered by 9-Volt Battery (100+ Hours) or Phantom Power
- Rugged Steel Case
Specifications
| Active or Passive | Active |
| Inputs | 2x 1/4" TRS |
| Outputs | 2x XLR 2x 1/4" TRS Thru |
| Input Impedance | 470 kΩ |
| Output Impedance | <600Ω |
| Maximum Input Level | +4 dBu above Attenuation Setting |
| Maximum Output Level | '+6 dBu (Battery) +14 dBu (Phantom) |
| Controls | Attenuator (0 dB, -20 dB, -40 dB) Phase Invert Filter Ground Lift (All per Channel) |
| Filter | Low-Pass Bessel Filters |
| Frequency Response | 10 Hz - 100 kHz +/- 0.5 dB @ 0 dBu |
| Dynamic Range | >100 dB (Typical) |
| Total Harmonic Distortion | <.05% (Typical) |
| Channel Separation | >80 dB (Typical) |
| Power Requirements | 9V, 7.5 mA (Battery, Alkaline Recommended) 18V - 48V DC, 6.4 mA (Phantom, per Channel) |
| Battery Life | 100+ Hours |
| Dimensions (HWD) | 2″ x 5″ x 5.75″ 5.1 cm x 12.7 cm x 14.6 cm |
| Weight | 2.7 lbs / 1.22 kg |
Specifications subject to change without notice
The dADB is a two-channel active direct box for connecting instrument, line, or speaker signals to balanced inputs.
The high-impedance 1/4" inputs are buffered and converted by extremely low-noise electronics to deliver isolated, low-impedance outputs. Thru jacks allow the input signal to be sent to an amplifier on stage as well as the XLR output . With an extremely flat, wide frequency response, the dADB is acoustically transparent, even at high input levels.
Both channels feature phase reversal, ground lifts to help reduce hum, low-pass Bessel filters to eliminate high-frequency interference, and up to 40 dB of attenuation.
The active circuitry can operate on phantom power or for over 100 hours on a new 9-volt battery. Active DIs are often a great match for sources like guitars and basses with passive pickups, or acoustic guitars with piezo pickups and no preamp.
The dADB provides a high-fidelity connection to a mixer, PA system, or audio interface, and offers two independent channels with versatile features in a stage-proof steel enclosure.
Features
- 2 Independent Channels
- 1/4" TRS Inputs and Thru Connections
- Balanced XLR Outputs
- Switchable Attenuation (20 dB, 40 dB) per Channel
- Switchable Phase Invert, Ground Lift, and Low-Pass Filter per Channel
- Powered by 9-Volt Battery (100+ Hours) or Phantom Power
- Rugged Steel Case
Specifications
| Active or Passive | Active |
| Inputs | 2x 1/4" TRS |
| Outputs | 2x XLR 2x 1/4" TRS Thru |
| Input Impedance | 470 kΩ |
| Output Impedance | <600Ω |
| Maximum Input Level | +4 dBu above Attenuation Setting |
| Maximum Output Level | '+6 dBu (Battery) +14 dBu (Phantom) |
| Controls | Attenuator (0 dB, -20 dB, -40 dB) Phase Invert Filter Ground Lift (All per Channel) |
| Filter | Low-Pass Bessel Filters |
| Frequency Response | 10 Hz - 100 kHz +/- 0.5 dB @ 0 dBu |
| Dynamic Range | >100 dB (Typical) |
| Total Harmonic Distortion | <.05% (Typical) |
| Channel Separation | >80 dB (Typical) |
| Power Requirements | 9V, 7.5 mA (Battery, Alkaline Recommended) 18V - 48V DC, 6.4 mA (Phantom, per Channel) |
| Battery Life | 100+ Hours |
| Dimensions (HWD) | 2″ x 5″ x 5.75″ 5.1 cm x 12.7 cm x 14.6 cm |
| Weight | 2.7 lbs / 1.22 kg |
Specifications subject to change without notice