PALMER PDIR01 Pro DI-REVERSE – Reversed DI Box

Reverse DI Box

Users frequently attempt to connect a DI box in reverse in order to feed a balanced signal into an unbalanced input. Because of mismatching, however, this leads to unsatisfactory results. With the PDIR01 (DI-REVERSE), we offer a box that provides a perfect technical solution to the problem without using adapters.

• Type: passive
• Number of channels: 1
• Number of inputs: 1
• Input connections: XLR/f
• Max. input level: +6dBu
• Input impedance: 2 kohms
• Number of outputs: 1
• Output connections: 6.3 mm jack
• Max. output level: +6dB
• Output impedance: 2 kohms
• Frequency range: 20Hz - 20kHz
• Transformer balanced: yes
• Transformation ratio: 1:1
• Controls: Ground lift
• Housing material: Sheet steel
• Housing surface: powder-coated
• Width: 110 mm
• Depth: 35 mm
• Height: 39 mm

Ενεργό DI box με ground lift, αναστροφή φάσης, έξοδους XLR και καρφί 1/4'' (thru), pad 3 θέσεων στην είσοδο για σήματα επιπέδου instrument/line/speaker

• Premium Performance
• Rugged Design
• Stackable Chassis with Durable Rubber Foot
• Gold-plated Neutrik® XLR Connector
• Premium Chrome Toggle Switches
• Hi-Z 1/4" Input Jack
• Parallel 1/4" Thru Jack
• Transformer Isolated
• Premium Shielded Custom dbx Transformer
• Balanced XLR Lo-Z Output
• 3-Way 0/20/40 dB Pad Switch
• Flat/High-Cut Filter Switch
• Output Polarity Invert Switch
• Ground Lift Switch
• 4 Year Warranty!

• Phantom Powered
• Green LED Phantom Power Indicator
• +48V Phantom Operation
• Low-Noise Active Circuitr

Input: 1 instrument/line/speaker level

Connector: 1/4" jack

Type: Unbalanced, RF filtered

Impedance: 150k Ohm typical

Max Input Level: +20dBu (0dB pad)
+40dBu (20dB pad)
+60dBu (40dB pad)

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

Transformer: Custom dbx mu-metal-shielded

Frequency Response: 20Hz to 20kHz, +/-2.5dB

Noise:

The Stewart ADB-1 is a single channel active direct box that allows an unbalanced source to
directly feed a balanced input. Musical instruments, tape recorders, VCRs and sound projectors
can be run "direct" to the mixing console, avoiding unnecessary degradation of sound quality.
The ADB-1 operates on either phantom power or a 9-volt battery.

FEATURES:
Flat response
Low distortion
Low noise
Wide dynamic range
No transformer
RF protection on input and output
Switchable ground isolation
Flush mounted slide switches

Phantom or battery powered in a rugged steel chassis, with separate Speaker Level input connector
 
The ARX DI-PLUS represents another major step forward in active direct boxes. Packaged in
a single channel stand-alone format, the DI-PLUS represents a fresh look at active D.I. concepts.
Precision engineered
Ultra quiet, ultra clean circuitry delivers maximum headroom whatever the signal. Premium grade
components, plus an all-steel chassis gives excellent hum and noise specifications and superb
audio quality in a tough, roadworthy package.
Level control
The DI-PLUS features a Normal gain high impedance unbalanced input on the front panel, running to
a balanced XLR output on the rear. There is also a separate -40dB Speaker Level input for signal coming
from the External (auxiliary) speaker output of an amplifier. A a global Pad switch drops both the normal
input and the speaker input by a further 20dB, making it suitable for all applications, from the softest
keyboard to the hottest broadcast levels.
 
Battery compartment
The revolutionary simple 'clamshell' action of the DI-PLUS battery compartment makes battery changing
extremely easy, even on the darkest stages.
A 9v alkaline battery snaps into a PCB mounted battery holder for fast, secure location. No fragile battery
clip leads to break, no tools required, no screws to lose. Production crew heaven!
 
Automatic Phantom switching
The DI-PLUS will automatically switch itself to the console's own Phantom Power, if available, and an LED
will indicate this mode. Turn the Phantom Power off and it will instantly revert back to battery mode.
Rugged all-steel case
A lot of direct boxes are fitted into brittle cast alloy cases. Not this one! The tough all-steel inner and outer
chassis of the DI-PLUS provide excellent RF/EMF shielding while making it a sturdy, heavy duty unit that is
hard to dislodge, and hard to leave behind.
 
Rear panel showing XLR connector, ground lift switch, and captive screw for opening up the unit
for battery changing
 
Whether you're a Studio or Live Sound engineer, installation contractor, or broadcast engineer, you want all
the dynamics and clarity of the original sound source transferred to the mixing console. The ARX DI-PLUS
provides a rugged, no-compromise solution to all direct injection and signal balancing requirements.
 
T E C H N I C A L  S P E C I F I C A T I O N S:
Max Input Level
+13 dB Phantom powered
+6 dB Battery powered
Input Impedance 1 Meg Ohm
Max Output Level
+17 dB 10K Ohm load Phantom powered
+12 dB 10K Ohm load Battery powered
+11 dB 600 Ohm load Phantom powered
+12 dB 600 Ohm load Battery powered
Output Impedance 680 Ohms Balanced
Output Signal to Noise
-100 dB unweighted
-104 dB A weighted
Dynamic Range
117 dB 10K Ohm load Phantom powered
112 dB 10K Ohm load Battery powered
111 dB 600 Ohm load Phantom powered
107.5 dB 600 Ohm load Battery powered
Distortion
100 Hz .0027%, 1KHz .0028%, 10KHz .0037%
Frequency Response 20Hz to 20KHz, ± 0.2 dB
Gain through Unit: 6dB (Normal input, Pad switch out)
Pad Switch: -20 dB attenuation
Speaker Input
-40 dB attenuation, equivalent to 100:1 decrease in input level
-60 dB attenuation available with Pad switch
Input Connectors
Insulated jacks (!!!Note that the Input connector switches the unit on
when a plug is inserted. Remove plug when storing to avoid battery drain!!!)
Output Connector
3 pin XLR. Wired Pin 1 Ground, Pin 2 + Hot, Pin 3 - Cold.
With Audio Ground (Pin 1) lift switch
Construction
All-steel chassis, fibreglass PCB
Battery Access
Twist connector opens chassis, snap-in battery holder inside.
No tools required
 

User´s Manual

Active DI box in a sturdy metal housing (aluminium/steel) with protective corners, silver-blue metallic, internal battery (9 V flashes during operation) is switched off automatically when phantom power is used (LED permanently illuminated),

extremely low battery consumption. Battery: 9 V block (not included).

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.