DN200 The DN200 has become an established favorite amongst both engineers and musicians alike. With its high headroom, dynamic response and sonic clarity, DN200 faithfully reproduces the character of electric and acoustic instruments and allows far more of the detail of musical performances to be captured. DN200 is intended for professional applications where +48 V […]
The DN200 has become an established favorite amongst both engineers and musicians alike. With its high headroom, dynamic response and sonic clarity, DN200 faithfully reproduces the character of electric and acoustic instruments and allows far more of the detail of musical performances to be captured. DN200 is intended for professional applications where +48 V phantom power is a standard feature on all mixing consoles, and its innovative design results in a significantly higher clipping point than many other active DI Boxes, providing +10 dBu output into a 2 KΩ load. This increased headroom means that much higher-level input signals can be accommodated without the need for an attenuating pad. Combined with a very low noise input circuit topology, DN200 offers a very wide dynamic range, and only requires the -20 dB pad when connecting directly to instrument amplifier outputs or other very high-level signal sources.
DN200 is built to handle the rigours of life on the road, a thick aluminium extrusion protects the electronics, and in turn is protected by tough silicone rubber corners
Balanced Transformer-Isolated Output
Exhaustive listening tests using a wide variety of active and passive bass guitars, electro-acoustic guitars and electronic musical instruments were carried out to select the components for DN200 to achieve the best musical sound. Not only was the choice of the audio transformer particularly important in achieving this goal, but the impedances of the surrounding components were also highly critical in getting the best possible performance out of the audio transformer. The line-driving characteristics of the transformer output were carefully optimized to provide the best frequency and phase responses for short and long cables and widely differing line and termination impedances.
Care was taken in the design of the DN200 to avoid audio transformer core saturation and a fixed high pass filter has been included in the signal path to roll off frequencies below those that are musically important. The lowest note on a 5- or 6-string bass guitar is B0 with a frequency of 30.87 Hz, and the lowest note on an 88-key piano keyboard is A0 with a frequency of 27.50 Hz. DN200 still maintains a frequency response of ±0.5 dB at these lowest musical notes.
As well as the transformers in the signal path, DN200 also has a transformer to isolate the power rails to the input circuit from the phantom power supply sourced from the output XLR connector. When used in conjunction with the Earth Lift switch, this full galvanic isolation of input and output interfaces ensures that any risk of earth loops is avoided when taking a direct feed from stage backline equipment.
Dual-Impedance Stereo Inputs
A custom instrumentation-grade balanced input circuit was designed for the DN200 using advanced analogue design techniques to create the very high input impedance required by passive guitar and bass pickups, whilst keeping the actual component values low to minimize noise. This innovative approach to circuit design produces a very low noise floor, which combined with the high clipping point creates an unrivalled dynamic range in a +48 V phantom powered DI Box.
DN200 features dual parallel-connected combo XLR’s / ¼” TRS inputs. When connecting to the Combo XLR input, the input impedance is 20 kΩ, ideal for line level equipment and offering even lower noise performance. This input impedance is far too low for guitar and bass pickups and is removed from the circuit when a jack plug is inserted into the Combo ¼” TRS input, resulting in a nominal 1 MΩ input impedance, ideal for passive electric pickups.
DN200 is also equipped with a Stereo input mini jack which is ideal for connecting MP3 players or mobiles phones etc.
Illuminated 20dB Pad and Earth Lift Switches
DN200 features illuminated -20 dB Pad and Earth Lift switches. The Earth Lift switch separates the input and output grounds, useful in eliminating earth loops between equipment on different mains electricity supplies.
Illuminated Sum and Split switches
For added convenience the DN200 has illuminated Sum and Split switches which along with the +48V phantom power indicator LED’s, provide ‘at a glance’ status display even at wide distances and viewing angles. The Sum switch allows a stereo input signals to be combined into a mono signal which appears at both the L and R output XLR’s. The Split switch takes the L input and sends it to both the L and R output XLR’s.
The ¼” TRS Link Thru jacks may be used for a parallel input connection to a guitar or bass amplifier.
Built for the Road
Featuring a tough aluminium extrusion, the DN200 is designed for the rigours of live concert touring. The protective rubber corners also insulate the DN200 chassis to further enhance its electrical isolation. Premium Neutrik XLR connectors are used to ensure reliable audio connections, night after night.
Specification
Inputs
Connectors
2 x combo XLR, 2 x 1/4″ TRS link jacks, 1/8″ stereo TRS jack
Impedance
1 MΩ (combo & link jacks balanced), 20 kΩ (combo XLR only), 500 kΩ (1/8″ stereo TRS jack unbalanced)
Max input level
28 dBu combo XLR and TRS link jacks (pad enabled),
21 dBu 1/8″ TRS jack (pad enabled)
Attenuator
20 dB pad
Outputs
Connectors
2 x 3-pin XLR
Impedance
50 Ω
Max output level
13 dBu with 10 kΩ load, 10 dBu with 600 Ω load
Min load
600 Ω
System
Noise
103 dBu, 22 Hz to 22 kHz unweighted, with input terminated by 10 kΩ resistor
Frequency response
20 Hz to 20 kHz, ±1 dB, 10 kΩ load
Distortion (THD + N)
Typically <0.005% @ 1 kHz, +10 dBu
Crosstalk
<100 dB @ 1 kHz, inputs terminated
Power Requirement
Voltage
+48 V phantom
Current consumption
<10 mA per channel
Physical
Dimensions
118 x 63 x 142 mm (4.7 x 2.5 x 5.6″)
Weight
0.65 kg (1.43 lbs)
Weight
1.00 kg
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Converts an unbalanced line input (e.g. instruments) into a balanced XLR output for connecting a mixer
Switchable input attenuation: 0 dB, -20 dB, -40 dB
Rugged black metal housing
Content
DN200
The DN200 has become an established favorite amongst both engineers and musicians alike. With its high headroom, dynamic response and sonic clarity, DN200 faithfully reproduces the character of electric and acoustic instruments and allows far more of the detail of musical performances to be captured. DN200 is intended for professional applications where +48 V phantom power is a standard feature on all mixing consoles, and its innovative design results in a significantly higher clipping point than many other active DI Boxes, providing +10 dBu output into a 2 KΩ load. This increased headroom means that much higher-level input signals can be accommodated without the need for an attenuating pad. Combined with a very low noise input circuit topology, DN200 offers a very wide dynamic range, and only requires the -20 dB pad when connecting directly to instrument amplifier outputs or other very high-level signal sources.
DN200 is built to handle the rigours of life on the road, a thick aluminium extrusion protects the electronics, and in turn is protected by tough silicone rubber corners
Balanced Transformer-Isolated Output
Exhaustive listening tests using a wide variety of active and passive bass guitars, electro-acoustic guitars and electronic musical instruments were carried out to select the components for DN200 to achieve the best musical sound. Not only was the choice of the audio transformer particularly important in achieving this goal, but the impedances of the surrounding components were also highly critical in getting the best possible performance out of the audio transformer. The line-driving characteristics of the transformer output were carefully optimized to provide the best frequency and phase responses for short and long cables and widely differing line and termination impedances.
Care was taken in the design of the DN200 to avoid audio transformer core saturation and a fixed high pass filter has been included in the signal path to roll off frequencies below those that are musically important. The lowest note on a 5- or 6-string bass guitar is B0 with a frequency of 30.87 Hz, and the lowest note on an 88-key piano keyboard is A0 with a frequency of 27.50 Hz. DN200 still maintains a frequency response of ±0.5 dB at these lowest musical notes.
As well as the transformers in the signal path, DN200 also has a transformer to isolate the power rails to the input circuit from the phantom power supply sourced from the output XLR connector. When used in conjunction with the Earth Lift switch, this full galvanic isolation of input and output interfaces ensures that any risk of earth loops is avoided when taking a direct feed from stage backline equipment.
Dual-Impedance Stereo Inputs
A custom instrumentation-grade balanced input circuit was designed for the DN200 using advanced analogue design techniques to create the very high input impedance required by passive guitar and bass pickups, whilst keeping the actual component values low to minimize noise. This innovative approach to circuit design produces a very low noise floor, which combined with the high clipping point creates an unrivalled dynamic range in a +48 V phantom powered DI Box.
DN200 features dual parallel-connected combo XLR’s / ¼" TRS inputs. When connecting to the Combo XLR input, the input impedance is 20 kΩ, ideal for line level equipment and offering even lower noise performance. This input impedance is far too low for guitar and bass pickups and is removed from the circuit when a jack plug is inserted into the Combo ¼" TRS input, resulting in a nominal 1 MΩ input impedance, ideal for passive electric pickups.
DN200 is also equipped with a Stereo input mini jack which is ideal for connecting MP3 players or mobiles phones etc.
Illuminated 20dB Pad and Earth Lift Switches
DN200 features illuminated -20 dB Pad and Earth Lift switches. The Earth Lift switch separates the input and output grounds, useful in eliminating earth loops between equipment on different mains electricity supplies.
Illuminated Sum and Split switches
For added convenience the DN200 has illuminated Sum and Split switches which along with the +48V phantom power indicator LED’s, provide ‘at a glance’ status display even at wide distances and viewing angles. The Sum switch allows a stereo input signals to be combined into a mono signal which appears at both the L and R output XLR’s. The Split switch takes the L input and sends it to both the L and R output XLR’s.
The ¼" TRS Link Thru jacks may be used for a parallel input connection to a guitar or bass amplifier.
Built for the Road
Featuring a tough aluminium extrusion, the DN200 is designed for the rigours of live concert touring. The protective rubber corners also insulate the DN200 chassis to further enhance its electrical isolation. Premium Neutrik XLR connectors are used to ensure reliable audio connections, night after night.
Specification
Inputs
Connectors
2 x combo XLR, 2 x 1/4" TRS link jacks, 1/8" stereo TRS jack
Impedance
1 MΩ (combo & link jacks balanced), 20 kΩ (combo XLR only), 500 kΩ (1/8" stereo TRS jack unbalanced)
Max input level
28 dBu combo XLR and TRS link jacks (pad enabled),
21 dBu 1/8" TRS jack (pad enabled)
Attenuator
20 dB pad
Outputs
Connectors
2 x 3-pin XLR
Impedance
50 Ω
Max output level
13 dBu with 10 kΩ load, 10 dBu with 600 Ω load
Min load
600 Ω
System
Noise
103 dBu, 22 Hz to 22 kHz unweighted, with input terminated by 10 kΩ resistor
Frequency response
20 Hz to 20 kHz, ±1 dB, 10 kΩ load
Distortion (THD + N)
Typically <0.005% @ 1 kHz, +10 dBu
Crosstalk
<100 dB @ 1 kHz, inputs terminated
Power Requirement
Voltage
+48 V phantom
Current consumption
<10 mA per channel
Physical
Dimensions
118 x 63 x 142 mm (4.7 x 2.5 x 5.6")
Weight
0.65 kg (1.43 lbs)
Little brother of the LH-055 DI Box. Sturdy housing, solid workmanship at an unbeatable price.
1-channel DI box, passive Converts unbalanced 6.3 mm jack line input (e.g. from instruments) into balanced XLR output for connecting a mixer Switchable input attenuation: 0 dB, -20 dB, -40 dB Ground-lift switch eliminates ground loop problems 1 signal input (6.3 mm jack) 1 parallel output (6.3 mm jack), feed-through of the input signal (e.g. to a guitar amplifier) 1 low-impedance output (XLR) Black housing
Passive 1-channel DI box, black
1 high-impedance signal input, 6.3 mm jack
1 low-impedance XLR output
6.35 mm jack input, and output
Converts an unbalanced line input (e.g. instruments) into a balanced XLR output for connecting a mixer
Switchable input attenuation: 0 dB, -20 dB, -40 dB
Rugged black metal housing
Package contents
1 x device, 1 x user manual
Frequency range:
15 - 30000 Hz
S/N ratio:
>95 dB
Impedance:
Input: 50 kOhm
Output: 600 Ohm
Input attenuation:
0 dB, -20 dB, -40 dB; switchable
Control elements:
Groundlift selector
Connections:
Input: 1 x 6.3 mm plug (unbal.)
Link: 1 x 6.3 mm plug (unbal.)
Output: line via 1 x 3-pin XLR
Dimensions:
Width: 12,7 cm
Depth: 7,4 cm
Height: 4,5 cm
Weight:
440 g
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.
Palmer PAN 03 19" DI Box 4-Channel active
Active 4-channel DI box. Each channel has a jack input with a parallel output for passing through the signal. An attenuation switch (-30 dB) allows either a line or loudspeaker signal to be connected.Active 4 x DI box, 19" format. Technical specitications identicl to the PAN-02, however, the PAN-03 is built for mains operation. All connections and switches are located on the front panel, an additional parallel XLR output is located in back. 19 inch rack-mount format, 1 rack space, 90 mm front to back.
Product type
DI Boxes
Type
active
Channels
4
Inputs
4
Input connectors
6.3 mm jack
Max. input level
+ 45 dBu
Input impedance
(@ 60 Hz) 1 M Ohm(s)
Input pad
0 / -30 dB
Outputs
4 (+ 4 parallel XLR outs)
THRU outputs/channel
1
Output connectors
6.3 mm jack , XLR
Max. output level
+ 10 dBu
Output impedance
600 Ohm(s)
Frequency response
10 - 20000 Hz
Transformer balanced
Yes
Ratio
10 : 1
Indicators
Power
Controls
attenuator , ground lift
Operating voltage
external
Cabinet material
sheet steel
Cabinet surface
Powder coated
Width
480 mm
Width
19 "
Depth
90 mm
Height
45 mm
Height
1 U
Weight
1,6 kg
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 electronic Direct-Injection Box SM-60 allows direct connection of electronic music instruments such as keyboards, synthesizers, electric and electronic pianos, etc. with mixing consoles in PA-systems and in recording studios. The SM-6 is designed for applications, where a passive DI-Box does not perfom satisfactorily, i.e., where the output level of a passive DI-Box is too low for the microphone input section of the mixing desk. Because the input impedance of the SM-6 is above 5 MOhm, instrument outputs are not loaded or in any other way adversely affected. The voltage ratio from input to output is 1: 1 and is always sufficient for connection with any microphone input. Input connectors are 1/4" phone jacks, output connector is a Switchcraft D3M; output is 600 Ohms, transformer balanced. The output level may in certain cases overload microphone inputs - the line input section of the mixing console must then be used for connecting the SM-6. The unit operates with a 9 V battery or phantom powering from 24 to 48 volts.
Technical Data
input impedance > 5 MOhm max. input impedance + 6 dBu, 1,55V ouptut impedance 600 Ohm frequency response 20 ... 20000 Hz, ± 0,2 dB gain 1 : 1 THD < 1 % at 30 Hz < 0,7 % bei 40 Hz powering 9-V battery (IEC 6LF22) or phantom power 24 ... 48 V. inputs two 1/4" phone jacks , unbalanced (one being used as output to instruments amp) outputs XLR, balanced pin 1 = ground, pin 2 = hot, pin 3 = cold case aluminium die-cast weight 240 g dimensions 113 x 71 x 37 mm
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