1273 - Microphone BEHRINGER - Free user manual and instructions

USER MANUAL 1273 BEHRINGER

Legendary 2-Channel Microphone Preamplifier with 3-Band Equalizers and Custom-Built Midas Transformers

23Quick Start Guide1273

EN

Important Safety Instructions

ES

Terminals marked with this symbol carry electrical current of sufficient magnitude to constitute risk of electric shock. Use only high-quality professional speaker cables with 1/4" TS or twist-locking plugs pre-installed. All other installation or modification should be performed only by qualified personnel.

This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure - voltage that may be sufficient to constitute a risk of shock.

This symbol, wherever it appears, alerts you to important operating and maintenance instructions in the accompanying literature. Please read the manual.

Caution To reduce the risk of electric shock, do not remove the top cover (or the rear section). No user serviceable parts inside. Refer servicing to qualified personnel.

Caution To reduce the risk of fire or electric shock, do not expose this appliance to rain and moisture. The apparatus shall not be exposed to dripping or splashing liquids and no objects filled with liquids, such as vases, shall be placed on the apparatus.

Caution These service instructions are for use by qualified service personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operation instructions Repairs have to be performed by qualified service personnel.

[Non-Text]

Warning Please refer to the information on the

exterior of bottom enclosure for electrical and safety information before installing or operating the device.

1. Please read and follow all instructions and warnings.
2. Keep the apparatus away from water (except for outdoor products).
3. Clean only with dry cloth.

4. Do not block ventilation openings. Do not install in a confined space. Install only according to manufacturer's instructions.

5. Protect the power cord from damage, particularly at plugs and appliance socket.

6. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that produce heat.
7. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other (only for USA and Canada). A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
8. Protect the power cord from damage, particularly at plugs and appliance socket.
9. Use only attachments and accessories recommended by the manufacturer.

1. Use only specified carts, stands, tripods, brackets, or tables. Use caution to prevent tip-over

when moving the cart/apparatus combination.

1. Unplug during storms, or if not in use for a long period.

2. Only use qualified personnel for servicing, especially after damage.

3. The apparatus with protective earthing terminal shall be connected to a MAINS socket outlet with a protective earthing connection.

4. Where the MAINS plug or an appliance coupler is used as the disconnect device, the disconnect device shall remain readily operable.

5. Avoid installing in confined spaces like bookcases.
6. Do not place naked flame sources, such as lighted candles, on the apparatus.
7. Operating temperature range 5" to 45°C (41° to 113°F).

LEGAL DISCLAIMER

Music Tribe accepts no liability for any loss which may be suffered by any person who relies either wholly or in part upon any description, photograph, or statement contained herein. Technical specifications, appearances and other information are subject to change without notice. All trademarks are the property of their respective owners. Midas, Klark Teknik, Lab Gruppen, Lake, Tannoy, Turbosound, TC Electronic, TC Helicon, Behringer, Bugera, Aston Microphones and Coolaudio are trademarks or registered trademarks of Music Tribe Global Brands Ltd. © Music Tribe Global Brands Ltd. 2024 All rights reserved.

LIMITED WARRANTY

For the applicable warranty terms and conditions and additional information regarding Music Tribe's Limited Warranty, please see complete details online at community.musictribe.com/support.

ES

BESCHRÄNKTE GARANTIE

Thank you for purchasing the 1273 Dual Mic Preamp and EQ.

The 1273 draws inspiration from the classic Newe 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

A2 NVP2 behringer 1372 RVL RCL PRAVNT/CG 1 2 BEV 9.5V BEV 8.5V BEV 6.5V BEV 4.5V BEV 2.5V BEV 1.5V BEV 0.5V

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).

16 1273

Quick Start Guide

17

Connecting up

The 1273 unit uses the following leads and connectors:

Analog Inputs:

Mic/Line Input - Transformer Balanced XLR and Vi" TRS connectors

-300/1200.0 Mic. 10 kΩ Line

- Instrument input 600 kΩ

Analog Outputs:

Line Output - Transformer Balanced XLR and 14" TRS connectors <80 D

Power Connections:

IEC mains inlet - 100-240 V AC \~ 50-60 Hz

For further information about the connectors used in conjunction with the 1273 unit, see Section S. Connectors.

1. Front Panel
   

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1. Mic/Line input - Combo jack provides balanced female XLR and 14 TRS input connections for mic/line equipment. Unbalanced signals can also be connected by using 14 TS connectors with the 14 chassis connectors.

2. +48 V LED - Indicates if +48 V phantom power is active.

3. +48 V - Push to apply +48 V phantom power to the front and rear XLR inputs

4. 0 - Polarity 180^ invert button.

5. TONE - This changes the input impedance for the mic input, button out is 1200 , pushed in is 300 .

6. LINE - Selects the line input to be used. This button disables the other 2 inputs (Mic/Inst).

7. INSERT - The insert point is post gain, pre-EQ and could be used to add a compressor pre-EQ.

8. INST – Activates the front panel instrument input. This button disables the other 2 inputs (Mic/Line). The input transformer is also in the instrument path, therefore when the tone button is used there will be a slight warming effect.

9. INST Input - Unbalanced signals can also be connected using 14 " TS connectors with the 14 " chassis connectors.

10. GAIN - The preamp has a gain range of -20 dB to 80 dB in 5 dB steps.

11. LOW - The low band has ±15 dB gain adjusted with the outer control. The inner control selects the frequency: off, 35 Hz to 220 Hz in 5 steps.

12. MID - The mid band has ± 15 dB gain adjusted with the outer control. The inner control selects the frequency: off, 360Hz to 7.2kHz in 7 steps.

13. HIGH - The high band has ± 15 dB gain adjusted with the outer control. The inner control selects the frequency: off, 10kHz to 16kHz in 4 steps.

14. HI PASS - Control for the high pass filter can be set to: Off, 50 Hz, 80 Hz, 160 Hz and 300 Hz.

15. EQ IN - Switch the EQ in and out of circuit. The LED indicates the EQ circuit is active.

16. OUTPUT LEVEL - To achieve the full gain as indicated on the gain switch, level has to be set to full (0 dBu in, 0 dBu out for 0 dB on gain switch setting).

17. METER - Shows output level from -30 dB to 24 dB.

18. POWER - Turn the unit on and off. Up is ON.

19. Rear Panel
    

19 20 21 22 23 24 25 AC INPUT behvinger U75/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.0/1.5 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

1. POWER - Mains IEC socket.

2. LINE OUT XLR - Balanced male XLR.

3. LINE OUT TRS - 1/4" TRS output connections for line equipment. Unbalanced signals can also be connected using 1/4" TS connectors with the 1/4" chassis connectors.

4. RETURN - Insert return using 34^* TS input connections for line level equipment.

5. SEND - Insert send using 14 " TS output connections for line level equipment.

6. LINE IN - Line input using 14^ TRS input connections for line level equipment.

7. MIC IN - XLR input for microphones.

EN

18 1273

Quick Start Guide

19

5. Connectors

To ensure the correct and reliable operation of the equipment, only high-quality balanced, screened, twisted pair audio cable should be used. XLR and 12 " connector shells should be of metal construction so that they provide a screen when connected to the console/snake and, where appropriate, they should have pin 1 connected to the cable screen.

1 Line output audio connector. Female XLR plug and male XLR chassis connector with the following pinouts: 1 = ground; 2 = hot; and 3 = cold.
Balanced line input audio connector. Male XLR plug and female XLR chassis connector with the following pinouts: 1 = ground; 2 = hot; and 3 = cold.
Balanced line input/output audio connector. Male TRS plug to female. TRS chassis connector with the following pinouts: 1/Sleeve = ground; 2/Tip = hot (+); and 3/Ring = cold (-).
Unbalanced line input/output audio connector. Male TS plug to female. TRS chassis connector with the following pinouts: 2, 3/Sleeve = ground/cold (-); and 1/Tip = hot (+).

6. Operation

The 1273 is a dual channel pre-amp and equalizer. It can be used to pull various different classic tones from the sources connected. 48 V is switched independently per channel to allow microphones and DI boxes to be used that require 48 V for operation. The preamp can be overdriven using the GAIN control to pull out rich harmonic distortion from the source input which can be pleasing to the ears. In this case, the output level can be brought back to manageable levels by reducing the LEVEL control.

The TONE button changes the input impedance for the mic input (1200/300 Ω). The sound will become a little warmer when 300 is selected (pushed in), which may suit ribbon mics better.

The instrument input impedance is 600 kΩ. The input transformer is also in the instrument path, therefore when the tone button is used there is a gentle warming effect which can be pleasing on bass and guitars where the tone is a little thin.

The unbalanced insert point allows other external equipment to be placed in the signal chain before the EQ such as a compressor. This is useful when tracking sources and a good way to increase headroom when recording.

The HI-PASS can be used to remove excess rumble from the signal if required and is still active if the EQ is switched out of circuit. The EQ section provides a Low Shelf function (cut or boost all frequencies the same adjustable amount below the selected frequency), a High Shelf function (cut or boost all frequencies the same adjustable amount above the selected frequency), and a Mid Cut/Boost which applies a "bell curve" cut or boost at the selected frequency.

The front and rear XLR and line inputs for each input should not be used at the same time.

1. Introducción

1270 ELECTRIC PREAMS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

¡Bienvenido!

-300/1200Ω Mic. 10 kΩ Line

- 300/1200 Ω Mic. 10 kΩ Line

- Ingresso Instrument 600 kΩ

Uscite analogiche:

-300/1200Ω Mic. 10 kΩ Line

- Instrumentingang 600 kΩ

Analoge uitgangen:

1 2 3 4 5 9 10 11 12 13 14 15 16 17 18 SPTA BAS-ADC PULB/DC SPTA/ADC SPTA/ADC SPTA/ADC SPTA/ADC SPTA/ADC SPTA/ADC SPTA/ADC SPTA/ADC SPTA/ADC SPTA/ADC SPTA/ADC SPTA/ADC SPTA/ADC SPTA/ADC SPTA/ADC SPTA/ADC SPTA/ADC SPT A/S SPT B/S SPT C/S SPT D/S SPT E/S SPT F/S SPT G/S SPT H/S SPT I/S SPT J/S SPT K/S SPT L/S SPT M/S SPT N/S SPT O/S SPT P/S SPT Q/S SPT R/S SPT S/S SPT T/S SPT U/S SPT V/S SPT W/S SPT X/S SPT Y/S SPT Z/S SPT AA/S SPT AB/S SPT AC/S SPT AD/S SPT AE/S SPT AF/S SPT AG/S SPT AH/S SPT AI/S SPT AJ/S SPT AK/S SPT AL/S SPT AM/S SPT AN/S SPT AO/S SPT AP/S SPT AQ/S SPT AR/S SPT AS/A/S SPT AT/A/S SPT AU/A/S SPT AV/A/S SPT AW/A/S SPT AX/A/S SPT A/B/A/S SPT AZ/B/A/S SPT BA/C/A/S SPT CA/D/A/S SPT CA/E/A/S SPT CA/G/A/S SPT CA/H/A/S SPT CA/I/A/S SPT CA/J/A/S SPT CA/K/A/S SPT CA/L/A/S SPT CA/M/A/S SPT CA/N/A/S SPT CA/O/A/S SPT CA/P/A/S SPT CA/Q/A/S SPT CA/R/A/S SPT CA/S/A/S SPT CA/T/A/S SPT CA/U/A/S SPT CA/V/A/S SPT CA/W/A/S SPT CA/X/A/S SPT CA/Y/A/S SPT CA/Z/A/S SPT CA/CA/A/S

A2 INP21 behringer 1315 EVAL. INTUUM/CCS 1 2 BEHRER BEHRER BEHRER BEHRER

1273

Audio Inputs
Microphone
Type	2 x XLR, transformer balanced front2 x XLR, transformer balanced rear
Impedance 300 Ω / 1200 Ω, balanced
Max. input level +19 dBu
Gain -20 to 80 dB
Mic EIN @ 80 dB gain, 22 Hz to 22 kHz -125 dBu Unweighted
CMRR @ 60 dB gain > 90 dB
Line
Type	2 x 1⁄4" TRS in combi socket, transformer balanced front2 x 1⁄4" TRS, transformer balanced rear
Impedance 10 kΩ, balanced
Max. input level +30 dBu (attenuated -34 dB)
Gain -20 to 80 dB
CMRR @ 0 dB gain > 80 dB
Instrument
Type 2 x 1⁄4" TRS, front, hi-Z via transformer
Impedance 600 kΩ, unbalanced
Max. input level +30 dBu (attenuated -20 dB)
Gain -20 to 80 dB
Insert return 2 x 1⁄4" TS
Audio Outputs
Type 2 x XLR, 1⁄4" TRS, transformer balanced
Impedance < 80 Ω balanced
Max. output level +28 dBu
Insert send 2 x 1⁄4" TS
System Specifications
Frequency response (microphone) 20 Hz to 20 kHz, +0.5 dB
Frequency response (line and instrument)	20 Hz to 20 kHz, ±1 dB
Distortion (THD+IV)	<0.01% @ 1 kHz, +4 dBu<0.07% 50 Hz - 20 kHz, +4 dBu
Noise < -83 dBu (20 Hz - 20 kHz unweighted)
Dynamic range	> 102 dB typical (20 Hz to 20 kHz unweighted)
Circuit	Class-A amplifiers, inductor based EQ

EQ Section
Hi pass filter 50 / 80 / 160 / 300 Hz (18 dB/octave)
Low-band frequency range	35 / 60 / 110 / 220 Hz
Boost / cut	± 15 dB
Mid-band frequency range	360 / 700 / 1600 / 3200 / 4800 / 7200 Hz
Boost / cut	± 15 dB
High-band frequency range	10 / 12 / 16 kHz
Boost / cut	± 15 dB
Controls
Buttons	2 x 48 V phantom power2 x Polarity invert2 x Tone2 x Line2 x Insert2 x Inst2 x EQ in
Controls	2 x Gain - 20 to 80 dB2 x Low ± 15 dB, off to 220 Hz2 x Mid ± 15 dB, off to 7.2 kHz2 x High ± 15 dB, off to 16 kHz2 x Hi pass, off, 50 Hz, 80 Hz, 160 Hz, 300 Hz2 x Output level, zero (off) to 0 dB
Switch	On/off power switch
Power Requirements
Mains voltage	100 - 240 V~, 50/60 Hz
Power consumption	22 W max
Fuse T 1A H 250 V
Mains connection Standard IEC receptacle
LED	Power
Physical
Standard operating temperature range	5°C - 45°C (41°F - 113°F)
Dimensions (H x W x D)	88 x 483 x 165 mm (3.4 x 19.0 x 6.5")
Weight	5.34 kg (11.77 lbs)

技术参数

Other important information

Important information As

ortantes

Informations importantes

1. Register online.

Please register your new Music Tribe equipment right after you purchase it by visiting musictribe.com. Registering your purchase using our simple online form helps us to process your repair claims more quickly and efficiently. Also, read the terms and conditions of our warranty, if applicable.

1. Malfunction. Should your Music Tribe Authorized Reseller not be located in your vicinity, you may contact the Music Tribe Authorized Fulfiller for your country listed under "Support" at musictribe.com. Should your country not be listed, please check if your problem can be dealt with by our "Online Support" which may also be found under "Support" at musictribe.com. Alternatively, please submit an online warranty claim at musictribe.com BEFORE returning the product.

3. Power Connections.

Before plugging the unit into a power socket, please make sure you are using the correct mains voltage for your particular model. Faulty fuses must be replaced with fuses of the same type and rating without exception.

1. Registro online.

Other important information

1. Registreer online.

Responsible Party Name: Music Tribe Commercial NV Inc.

Address: 122 E. 42nd St.1,

8th Floor NY, NY 10168,

United States

Email Address: [e-mail]

1273

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

This equipment complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:

(1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Important information:

Changes or modifications to the equipment not expressly approved by Music Tribe can void the user's authority to use the equipment.

CE

Hereby, Music Tribe declares that this product is in compliance with Directive 2014/30/EU, Directive 2011/65/EU and Amendment 2015/863/EU, Directive 2012/19/EU, Regulation 519/2012 REACH SVHC and Directive 1907/2006/EC.

Full text of EU DoC is available at https://community.musictribe.com/

EU Representative: Music Tribe Brands DK A/S Address: Gammel Strand 44, DK-1202 København K, Denmark

UK Representative: Music Tribe Brands UK Ltd. Address: 8th Floor, 20 Farringdon Street London EC4A 4AB, United Kingdom

Correct disposal of this product: This symbol indicates that this product must not be disposed of with household waste, according to the WEEE Directive (2012/19/EU) and your national law. This product should be taken to a collection center licensed for the recycling of waste electrical and electronic equipment (IEEE). The mishandling of

this type of waste could have a possible negative impact on the environment and human health due to potentially hazardous substances that are generally associated with EEE. At the same time, your cooperation in the correct disposal of this product will contribute to the efficient use of natural resources. For more information about where you can take your waste equipment for recycling, please contact your local city office, or your household waste collection service.

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