IMPORTANT SAFETY INSTRUCTIONS

C A U T I O N

RISK OF ELECTRIC SHOCK

DO NOT OPEN

A T T E N T I O N : RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR

W A R N I N G : TO REDUCE THE RISK OF FIRE OR ELECTRIC

SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE

The symbols shown above are internationally accepted sym- bols that warn of potential hazards with electrical products. The lightning flash with arrowpoint in an equilateral triangle means that there are dangerous voltages present within the unit. The exclamation point in an equilateral triangle indi- cates that it is necessary for the user to refer to the owner’s manual.

These symbols warn that there are no user serviceable parts inside the unit. Do not open the unit. Do not attempt to serv- ice the unit yourself. Refer all servicing to qualified person- nel. Opening the chassis for any reason will void the manu- facturer’s warranty. Do not get the unit wet. If liquid is spilled on the unit, shut it off immediately and take it to a dealer for service. Disconnect the unit during storms to pre- vent damage.

SAFETY INSTRUCTIONS

NOTICE FOR CUSTOMERS IF YOUR UNIT IS EQUIPPED WITH A POWER CORD.

WARNING: THIS APPLIANCE MUST BE EARTHED.

CAUTION: EQUIPMENT IS NOT DISCONNECTED FROM MAINS WHEN SWITCH IS IN THE OFF POSITION

The cores in the mains lead are coloured in accordance with the following code:

GREEN and YELLOW - Earth

BLUE - Neutral

BROWN - Live

As colours of the cores in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows:

The core which is coloured green and yellow must be connected to the ter- minal in the plug marked with the letter E, or with the earth symbol, or coloured green, or green and yellow.

The core which is coloured blue must be connected to the terminal marked N or coloured black.

The core which is coloured brown must be connected to the terminal marked L or coloured red.

This equipment may require the use of a different line cord, attachment plug, or both, depending on the available power source at installation. If the attachment plug

needs to be changed, refer servicing to qualified service personnel who should refer to the table below. The green/yellow wire shall be connected directly to the units chassis.

CONDUCTOR

WIRE COLOR

 

 

Normal

Alt

L

LIVE

BROWN

BLACK

N

NEUTRAL

BLUE

WHITE

E

EARTH GND

GREEN/YEL

GREEN

WARNING: If the ground is defeated, certain fault conditions in the unit or in the system to which it is connected can result in full line voltage between chassis and earth ground. Severe injury or death can then result if the chassis and earth ground are touched simultaneously.

WARNING FOR YOUR PROTECTION PLEASE READ THE FOLLOWING:

KEEP THESE INSTRUCTIONS HEED ALL WARNINGS FOLLOW ALL INSTRUCTIONS CLEAN ONLY WITH A DAMP CLOTH.

DO NOT BLOCK ANY OF THE VENTILATION OPENINGS. INSTALL IN ACCORDANCE WITH THE MANUFACTURERS INSTRUCTIONS.

DO NOT INSTALL NEAR ANY HEAT SOURCES SUCH AS RADI- ATORS, HEAT REGISTERS, STOVES; OR OTHER APPARATUS (INCLUDING AMPLIFIERS) THAT PRODUCE HEAT.

ONLY USE ATTACHMENTS/ACCESSORIES SPECIFIED BY THE MANUFACTURER.

UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME.

WATER AND MOISTURE: Appliance should not be used near water (e.g. near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care should be taken so that objects do not fall and liq- uids are not spilled into the enclosure through openings.

POWER SOURCES: The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance.

GROUNDING OR POLARIZATION: Precautions should be taken so that the grounding or polarization means of an appliance is not defeated.

POWER CORD PROTECTION: Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying par- ticular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance.

SERVICING: To reduce the risk of fire or electric shock, the user should not attempt to service the appliance beyond that described in the operating instructions. All other servicing should be referred to qualified service personnel.

FOR UNITS EQUIPPED WITH EXTERNALLY ACCESSI- BLE FUSE RECEPTACLE: Replace fuse with same type and rating only.

MULTIPLE-INPUT VOLTAGE: This equipment may require the use of a different line cord, attachment plug, or both, depending on the available power source at installation. Connect this equipment only to the power source indicated on the equipment rear panel. To reduce the risk of fire or electric shock, refer servicing to qualified service personnel or equivalent.

POWER ON / OFF SWITCH: The Power Switch used in this piece of equipment DOES NOT break the connection from the Mains.

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dbx Pro Vacuum Tube Microphone PreAmp user manual Important Safety Instructions

Vacuum Tube Microphone PreAmp specifications

The dbx Pro Vacuum Tube Microphone PreAmp is an exceptional piece of equipment tailored for audio professionals seeking to elevate their recordings with a touch of vintage warmth. This preamp artfully combines modern technology with classic tube circuitry, ensuring that each sound source is captured with clarity and character.

At the heart of the dbx Pro Vacuum Tube Microphone PreAmp is its dual vacuum tube design, which contributes a rich harmonic distortion that is often sought after in high-end recording environments. The use of high-performance 12AX7 tubes allows the preamp to achieve a smooth sustain while introducing a subtle depth that enhances vocal and instrumental recordings alike.

One of the standout features of the dbx Pro is its dynamic range and low noise floor. With up to 60 dB of gain available, it is capable of amplifying even the quietest sources without introducing unwanted hiss or noise. This makes it a versatile choice for a variety of microphones, from sensitive condensers to more robust dynamic mics. The preamp also includes a 20 dB pad that can be engaged for high-SPL sources, preventing distortion and ensuring that recordings remain pristine.

Another critical aspect of this preamp is its integral EQ section. The dbx Pro offers a simple yet effective three-band EQ, allowing users to fine-tune frequencies before hitting the recording path. This can be particularly beneficial for shaping tone on the fly, making it easier to achieve the desired sound without the need for extensive post-processing.

The build quality of the dbx Pro is equally impressive. Constructed with a robust metal chassis, it is designed to withstand the rigors of professional use while providing a reliable platform for high-quality audio capture. The preamp features balanced XLR inputs and outputs, ensuring compatibility with a wide range of studio gear and facilitating easy integration into existing setups.

In summary, the dbx Pro Vacuum Tube Microphone PreAmp stands out with its exceptional sound quality, vintage warmth, and practical features. With its dual vacuum tube circuitry, extensive gain range, integrated EQ, and sturdy construction, it is an ideal choice for audio engineers and musicians aiming to achieve professional results. Whether for tracking vocals, instruments, or adding nuance to live performances, this preamp is a valuable tool in any audio arsenal.