PALMER AUDIO PDI02 TOOLS Active DI-box

High-quality active DI Box. Can be operated with 9 V batteries or 48 V phantom power. The input signal has three levels of attenuation. High-impedance input; higher output level than with a passive DI box. An active DI box for all professional audio quality applications. The ultra low noise discrete op amp design incorporating FETs handles even the most critical input sources such as piezo pickups. An integrated DC/DC converter isolates the mixer ground when phantom powered.

Technical specifications:

• Input: 6.3 mm jack socket with parallel "thru" socket
• Output: fully floating male XLR type, pin 2 = hot
• Ground lift switch
• 3 position attenuator switch 0 dB, -20 dB, -40 dB
• Max. Output level: +6 dB into 600 ohms
• Max. Input level: +6 dB @ - 0 dB attenuation +26 dB @ -20 dB attenuation +46 dB @ 40 dB attenuation
• Input impedance: 1 meg. ohm @ 0 dB attenuation, otherwise 47,000 ohms
• Output impedance: 60 ohms nominal
• Transformer ratio: 1 : 1
• Power supply: 9 V PP3 battery or 48 V phantom power 3 position switch to select phantom power, battery and battery check

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
?	Internal pad for speaker level input
?	Operates with battery or phantom power
?	Ground lift switch eliminates typical ground loop problems
?	Rugged, road-proof cast alloy chassis

• Compact, high-performance passive direct box
• Jack input 1/4" TS in and parallel out
• Gold-plated XLR output / impedance balanced
• Super-flat frequency output for uncolored sound
• Switchable filter that optimizes the DI for guitars
• Instrument/Amp switch lowers the input level 30dB for feeding amplifiers into the DI
• Instruments or amplifier outputs with up to 3,000 watts can be connected directly
• Offers impedance and signal matching of instruments to mixers
• Perfect for stage and studio use
• Ground lift switch eliminates typical ground loop problems
• Rugged metal case can take the rigors of the road

• Type: Passive DI Box
• Channels: 1
• Ground Lift: Yes
• Inputs: 1 x 1/4"
• Outputs: 1 x 1/4“, 1 x XLR
• Height: 1.4"
• Width: 3.75"
• Depth: 5"
• Weight: 0.66 lbs.
• Manufacturer Part Number: DI600P

2-channel DI box/splitter, passive Converts 2 separate unbalanced line inputs (e.g. instruments) into 2 balanced XLR outputs for connecting a mixer Switchable to split mode (input 1 routes the signal to both outputs) Switchable input attenuation: 0 dB, -20 dB, -40 dB Ground-lift switch eliminates ground loop problems 2 signal inputs via XLR/jack combo connectors 2 low-impedance XLR outputs Modern convex housing design Full rubber housing corners for safe operation Cables can be routed under the housing

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.

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:

THD:

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.