DB1A includes an MU-METAL core transformer able to reduce phase and harmonic distortion to a minimum, with noticeable improvement of the linear phase even on very long cables. The audio integrity is guaranteed by low-noise, low-consumption IC for balancing the signal, able to handle very low-impedance loads. The input section features JACK and XLR connectors […]
DB1A includes an MU-METAL core transformer able to reduce phase and harmonic distortion to a minimum, with noticeable improvement of the linear phase even on very long cables. The audio integrity is guaranteed by low-noise, low-consumption IC for balancing the signal, able to handle very low-impedance loads. The input section features JACK and XLR connectors with link possibility and a PAD of up to 30 dB that permits very high-level signal inputs to be used.
Technical Specifications
Type :
1 channel active DI
Width :
215 mm(8.465inch )
Height :
50 mm(1.969inch )
Depth :
125 mm(4.921inch )
Weight :
1 kg(2.205lb )
Rack Units :
1/2 rack unit.
Removing the two molded sides and attaching two units, with the supplied brackets, you can mount two by two DI boxes into a standard 19¿ rack.
Power Supply :
Phantom Power: +24 volts DC to +48 volts DC
External AC/DC adaptor: +9 volts DC with link
Standalone/Standby: 9 volt PP3 type battery.
Current drain :
Inputs :
Two Parallel 1/4′ jack connectors and one parallel XLR connector (unbalanced).
Input Impedance :
1M Ohm (pad at 0 dB)
47k Ohm (pad at -10/-20 dB)
44k Ohm (pad at -30 dB)
Input Levels :
+5 dBu (pad at 0 dB)
+15 dBu (pad at -10 dB)
+25 dBu (pad at -20 dB)
+35 dBu (pad at -30 dB)
Outputs :
XLR male: Pin 2 Hot / Pin 3 Cold / Pin1 Ground
Output Levels :
into 600 Ohms or greater
+3 dBu (for 0.1% THD at 50 Hz)
+5 dBu (for 0.1% THD at 1k Hz)
Connectors :
XLR male: Pin 2 Hot / Pin 3 Cold / Pin1 Ground
Channels :
1 nr.
Frequency response :
10 Hz to 100 kHz, +0dB/-1 dB
Distortion (THD) :
S/N Ratio :
Controls :
On/off, Pad -10, Pad -20, Gnd Lift, Ø inv.
Notes :
CMR > 60 dB
Phase distortion +14° at 20 Hz, -6° at 20k Hz
Weight
1.00 kg
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DB1A includes an MU-METAL core transformer able to reduce phase and harmonic distortion to a minimum, with noticeable improvement of the linear phase even on very long cables. The audio integrity is guaranteed by low-noise, low-consumption IC for balancing the signal, able to handle very low-impedance loads. The input section features JACK and XLR connectors with link possibility and a PAD of up to 30 dB that permits very high-level signal inputs to be used.
Technical Specifications
Type :
1 channel active DI
Width :
215 mm(8.465inch )
Height :
50 mm(1.969inch )
Depth :
125 mm(4.921inch )
Weight :
1 kg(2.205lb )
Rack Units :
1/2 rack unit.
Removing the two molded sides and attaching two units, with the supplied brackets, you can mount two by two DI boxes into a standard 19¿ rack.
Power Supply :
Phantom Power: +24 volts DC to +48 volts DC
External AC/DC adaptor: +9 volts DC with link
Standalone/Standby: 9 volt PP3 type battery.
Current drain :
Inputs :
Two Parallel 1/4' jack connectors and one parallel XLR connector (unbalanced).
Input Impedance :
1M Ohm (pad at 0 dB)
47k Ohm (pad at -10/-20 dB)
44k Ohm (pad at -30 dB)
Input Levels :
+5 dBu (pad at 0 dB)
+15 dBu (pad at -10 dB)
+25 dBu (pad at -20 dB)
+35 dBu (pad at -30 dB)
Outputs :
XLR male: Pin 2 Hot / Pin 3 Cold / Pin1 Ground
Output Levels :
into 600 Ohms or greater
+3 dBu (for 0.1% THD at 50 Hz)
+5 dBu (for 0.1% THD at 1k Hz)
Connectors :
XLR male: Pin 2 Hot / Pin 3 Cold / Pin1 Ground
Channels :
1 nr.
Frequency response :
10 Hz to 100 kHz, +0dB/-1 dB
Distortion (THD) :
S/N Ratio :
Controls :
On/off, Pad -10, Pad -20, Gnd Lift, Ø inv.
Notes :
CMR > 60 dB
Phase distortion +14° at 20 Hz, -6° at 20k Hz
Behringer DI-400P High-Performance Passive Direct Injection Box
Introducing the Ultra-Compact DI-Boxes from BEHRINGER
There are times when you will want to connect certain sound sources straight to other audio gear, be it for a live performance or a studio session. A direct connection between audio equipment can be a challenge though: technical problems crop up that?ll corrupt the signal.
The DI400P lets you connect instruments or amplifier outputs. It converts any unbalanced signal to a balanced signal and eliminates unwanted noise. With its high-performance transformer, it also allows you to use very long cables without the loss of high frequencies.
This is the sort of medicine that?ll cure headaches in your studio or on stage.
At dbx, when we do something, we do it right. So when we decided to create our new direct injection boxes, we didnʼt settle for the same old tired approach to direct box design. With our dbx name on the line, how could we? One look at our new dB10 Passive and dB12 Active direct boxes will tell you that these are clearly different. With their bullet-proof construction, and extraordinary audio performance to rival their looks, finally thereʼs a direct box worthy of the dbx name.
Utilizing custom dbx mu-metal-shielded audio transformers, high-quality Neutrik® connectors, and low-noise circuitry preserves the sonic integrity and true characteristics of the signal source. Both boxes include a pad switch that accomodates instrument, line and even speaker level signals. Take even more control of your sound by utilizing the polarity invert switch to set the phase relationship between the direct and mic'd sound.
As a professional, you donʼt have time for interference, so weʼve included a ground lift switch to solve potential hum and buzz problems due to ground loops. And between the combined shielding of the cast metal chassis and the custom-wound transformer, you can be doubly assured of a clean signal free from interference. All of this sits atop a solid, stable footprint, that will keep the box from being dragged around the stage, and the unique contoured underside allows secure stacking of multiple units.
So whether you need to control the level, placement in the mix, or overall characteristics of 4 independent signals or control the gain leveling on a couple of stereo pairs, the dbx dB10 dB12 is for you.
Thru Output: 1 parallel connection from input jack
Connector: 1/4" jack
Type: Unbalanced, RF filtered
Main Output: 1 line level
Connector: XLR male jack
Type: Balanced
Impedance: 150 Ohm typical
Max Output Level: 0dBu
PERFORMANCE
Transformer: Custom dbx mu-metal-shielded
Frequency Response: 20Hz to 20kHz, +/-2.5dB
Noise:
THD:
GENERAL
Dimensions: 5.82" L X 5.44" W X 2.20" H (148 x 138 x 56mm)
Weight: 1.4 lbs / 0.65 kg
Note: Specifications subject to change without notice.
DOD AC 275 Active Direct Box with Switchable Ground Lift and Attenuator-2nd Hand-
The AC 275 is an active, phantom powered direct box. Unlike a passive DI where the frequency response of the signal can be altered depending on the connected impedance, an active DI buffers the input signal with an amplifier. This assures that the sound source will reach the mixer balanced and noise-free.
Housed in a cast alloy chassis, the AC 275 supplies two, high impedance, unbalanced 1/4" jacks and one low impedance balanced XLR jack. It operates with battery or phantom power.
Key Features
?
Active direct box
?
Allows a hi impedance unbalanced source to directly feed a low impedance balanced input
?
Flat frequency response
?
Connects guitar pickups, microphones or electric instruments to a recording or P.A. console without audio quality loss
The model IA-2 line matching transformers !S designed to properly match a low impedance signal to a low impedance source. The advantage of "ground lift" switching allows to optmize hum problems.
Technical Data Frequency response 20 Hz - 20 KHz + 1 dB Impedance 600 : 600 Ohm THD K3 50 Hz = 0.5 % Level < + 6 dBm Weight 100 g Dimensions diameter 17 mm, lenght 115 mm
Passive DI box especially designed for guitars.
The PDI09 can be connected between an effect device or amplifier and the mixing console. The PDI09 is not suitable for direct connection to a guitar. Integrated filter circuits simulate the authentic "speaker" sound. Tone can be varied between "Mellow“, "Normal“, or "Bright“.
Technical specifications:
Input: 6.3 mm jack with parallel "THRU" socket
Output: male XLR transformer balanced
Attenuator: (Level switch) 0 dB for line signals, -15 dB for small amps up to 10 w, 30 dB for large amps up to 200 w
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