Publicidad
Idiomas disponibles
Idiomas disponibles
14
1273
1. Introduction
Welcome!
Thank you for purchasing the 1273 Dual Mic Preamp and EQ.
The 1273 draws inspiration from the classic Neve modules from the 1970's, regarded by many as the best microphone preamp available.
With the 1273, Behringer brings this legendary dual microphone sound up to date in a compact but highly useable format. To meet
modern 21st Century demands, Behringer uses premium components, rugged design and modern manufacturing techniques to offer
this product at a fraction of the price found on vintage units. This modernized version of a classic will fit happily into a rack alongside the
high-tech audio gear of today and perform reliably and seamlessly.
Features...
• •
Two-channel microphone preamplifier with 3-band equalizers, based on the classic 1073 design
• •
Class A, all discrete circuitry for highest signal integrity
• •
Custom-built Midas input and output transformers
• •
Versatile gain controls to handle various type of inputs including mic, line and instrument
• •
Electronically controlled resistor-stepped 80 dB rotary gain switch for extreme precision and low noise
• •
Tone function changes input transformer impedance for mic optimization
• •
Dedicated Phase, Tone, Insert, Line, Instrument, and Phantom Power switches for each channel
• •
Inductor-based switchable equalizers section with a passive third-order high-pass filter
• •
Low-frequency boost/cut at 35, 60, 110 or 220 Hz
• •
Mid-frequency boost/cut at 360, 700, 1600, 3200, 4800 or 7200 Hz
• •
High-frequency boost/cut at 10, 12 or 16 kHz
• •
5-position inductor-based high-pass filter, selectable for off, 50, 80, 160 or 300 Hz for each channel
• •
Transformer-balanced inputs and outputs on XLR/combo connectors
• •
High-precision 7-segment LED signal level meter for each channel
• •
Rugged 2U rack mount chassis for durability in portable applications
• •
Auto-ranging universal switch-mode power supply
About this manual
This is the operation manual for the 1273 Dual Mic Preamp and EQ. This manual is intended to help get your unit installed and in operation
as quickly as possible by giving you unpacking, installation, connection, setting up and operating instructions. To help familiarize you
with the 1273, there is a description of the front and rear panels, along with easy-to-follow user instructions.
2. Getting Started
The 1273
This section shows you how to unpack, install, connect up, switch on and configure the 1273.
This equipment is supplied by a mains voltage that can cause electric shock injury. Before installing, setting up or operating this
equipment, make sure that you have read and fully understand all of this section and the "Important safety instructions" at the front of
this manual.
Unpacking
Carefully unpack your 1273 unit. Then, inspect the 1273 unit carefully for any signs of damage that may have occurred during transit,
and then notify the courier immediately if you do discover any damage.
Check the contents of your 1273 unit equipment package. If there are any parts missing, incorrect or faulty, please contact your
local distributor.
Please retain the original packing in case you should need to return the equipment to the manufacturer or supplier, or transport or ship
the unit later.
Before installing, setting up or operating this equipment, make sure you have read and fully understand all of the
"IMPORTANT SAFETY INSTRUCTIONS" at the front of this document.
Installation
WARNING
Please refer to the information on the exterior of bottom enclosure for electrical and safety information before installing or
operating the device.
Before installing and operating this equipment, make sure it is correctly connected to the protective earth conductor of the mains voltage
supply socket outlet through each mains lead.
Ideally a cool area is preferred, away from power distribution equipment or other potential sources of interference.
Do not install the equipment in places of poor ventilation.
Do not install this equipment in a location subjected to excessive heat, dust or mechanical vibration. Allow for adequate ventilation
around the equipment. Whenever possible, keep the equipment out of direct sunlight.
Mount in rack only.
Power
The internal power supplies are of the switch mode type that automatically senses the incoming mains voltage and will work where the
nominal voltage is in the range 100 VAC to 240 VAC. The correct leads for connection in the area to which the unit was shipped are
supplied with the unit. The equipment should only be plugged into the mains outlets using the supplied leads.
Make sure the plug fitted on the supplied mains cable is securely fitted to the mains IEC connector on the unit. When fitting or removing a
plug, always hold the plug itself and never use the cable, as this may damage it. Never insert or remove an electric plug with wet hands.
Handling the equipment
When lifting or moving the equipment, always take its size and weight into consideration.
Completely isolate the equipment electrically and disconnect all cables from the equipment before moving it.
Electric fields
In accordance with Part 15 of the FCC Rules & Regulations, "... changes or modifications not expressly approved by the
party responsible for compliance could void the user's authority to operate the equipment."
Should this product be used in an electromagnetic field that is amplitude modulated by an audio frequency signal (20 Hz to 20 kHz),
the signal to noise ratio may be degraded. Degradation of up to 60 dB at a frequency corresponding to the modulation signal may be
experienced under extreme conditions (3 V/m, 90% modulation).
15
Quick Start Guide
Publicidad
