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DESCRIPTION

The UREI Model 1620LE Music Mixer is a multi-input stereo mixer which has been optimized for the heavy demands of fixed and mobile
sound installations.  The outstanding features and reliability of the Model 1620LE make it useful where high quality is essential.

The Model 1620LE has six input positions, each with a level control and a balance control.  In addition, the input positions labeled AUX
1 – AUX 4 have input source selector switches, allowing any of these four positions to control any of five auxiliary inputs (AUX A – E) or
the output of an optional internal preamplifier associated with that input position only.  AUX 4 input is supplied with a microphone
preamplifier card, Part No. 

1620-MC

, and the selector switch position is labeled MIC.  If no preamplifier card is installed in input positions

AUX 1, AUX 2 or AUX 3, the preamplifier input may be used with a line level source.

The output circuits of the Model 1620LE are quite versatile.  Separate outputs for house and booth amplifiers are provided, each with
its own level control; the house output is transformer-isolated, so that remote amplifiers may be fed with minimum likelihood of grounding
problems or noise pickup in the interconnecting lines.

A separate headphone circuit has its own selector switch, allowing its source to come from any of the six input controls (pre-fader) or
from the program output; its level control feeds an internal headphone amplifier and front panel stereo 6.3mm (1/4 in) phone jack.  For
convenience in attaching lighting controllers, an isolated mono (L + R) output is provided on a rear panel jack; this output is not affected
by any of the output level controls, so that lighting intensity will not be changed by overall level adjustments.  Separate bass and treble
controls for left and right channels affect the house, booth, headphone and mono outputs.  The inflection points of these controls have
been carefully selected for minimum midrange coloration and good adjustment range.

Additionally, two separate tape outputs are provided for making recordings, and an effects loop allows connection of equalizers, limiters,
expanders or other signal processing equipment.

To further customize the 1620LE Mixer for specific installations, you may select internal options to bypass the tone controls and/or
connect the standard mic input so that is does not appear on the tape outputs or effects loop and is not affected by the master gain or
tone controls.

The Model 1620LE has been designed for long life and reliability. All input and output level controls are quiet and smooth-acting.
Modular construction assures minimum down time for service – all preamplifiers, selector switches, level and balance controls are on
modular subassemblies which may be replaced in the field without soldering.  Components have been selected to be over-rated to
assure reliability in continuous duty service. Additionally gold-plated connectors are used throughout. For audio signal accuracy and
good channel matching, tight-tolerance electronic and electro-mechanical parts have been specified.

Becoming the owner of a new 

Urei by Soundcraft

 1620LE means you own a piece of DJ history – using the most upto date

engineering technology Soundcraft deliver the Classic 1620 with the most awesome audio characteristics for today’s demanding DJ.

UREI  is a classic pro audio name and has been a member of the Harman group since the early 80’s. The UREI 1620 DJ mixer, originally
produced in the 1970’s, reached cult status and played a major part in shaping today’s international club scene. Famed for its unique
sound it was regularly selected as the ‘mixer of choice’ by most of the top clubs and installers including the renowned Richard Long.

Richard Long was famous for designing and installing large nightclub systems in the 70’s including  Paradise Garage, Xenon, Regines,
Hippopotamus, 12 West and Studio 54.

Until today opportunities to buy the UREI 1620 have been rare and when second-hand units do become available they change hands
for a premium as DJ aficionados seek to obtain their own piece of history and bathe in the mystique that the unique ‘1620 sound’ is
famous for. Such is the popularity of the UREI 1620 it’s become the influence for countless products from many manufacturers around
the world - 

it’s been copied but never truly reproduced – until now.

Soundcraft, the world-leading mixer specialist and part of the Harman Pro Group, has re-launched the UREI series led by the UREI
1620LE, a limited edition version of the classic 1620.

The new unit retains its legendary performance and has been brought bang up to date with modern manufacturing techniques,
components and materials.

Soundcraft has caringly followed the ethos of the original electronic design and used its 30 years design and engineering expertise
to deliver an even better sounding mixer that has to be heard to be believed. Trials at high-end nightclubs with some of the most
renowned masters of club sound have demonstrated that not only the extraordinary sound quality of the original 1620 has been retained
– it’s been improved.

Now you can enjoy your own piece of DJ history, and help create the future.

Содержание UREI 1620LE

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Страница 2: ...commitment on the part of the vendor Soundcraftshallnotbeliableforanylossordamagewhatsoeverarisingfromtheuseofinformation or any error contained in this manual No part of this manual may be reproduced...

Страница 3: ...MAINS INSTALLATION 13 INITIAL WIRING CONSIDERATIONS 14 AUDIO WIRING 14 SHIELDING 14 POINTS TO REMEMBER 15 WORKING SAFELY WITH SOUND 15 INSPECTION AND INSTALLATION 16 BLOCK DIAGRAM 22 OPERATING CONTRO...

Страница 4: ...intended to alert the user to the triangle is intended to alert the user to the triangle is intended to alert the user to the triangle is intended to alert the user to the triangle is intended to ale...

Страница 5: ...or replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Only use att...

Страница 6: ...d with liquids such as vases on the apparatus THIS APPARATUS MUSTBE EARTHED Under no circumstances should the safety earth be disconnected from the mains lead Themainssupplydisconnectdeviceisthemainsp...

Страница 7: ...controls The Model 1620LE has been designed for long life and reliability All input and output level controls are quiet and smooth acting Modular construction assures minimum down time for service all...

Страница 8: ...Ohms Gain 64 dB maximum 1 kHz measured at House XLR Connector RCA type phono jack Microphone Input Input Impedance For 150 ohm microphone electronically balanced Gain 60 84 dB adjustable on card measu...

Страница 9: ...mended Load 200 Ohms Frequency Response 1 5 dB 20 Hz 20 kHz THD N 0 3 20 Hz 20 kHz 20dBu into 200 ohm load Maximum Output 20 dBu into 200 Ohms Connector 6 3mm 1 4 in stereo jack on front panel Mono Ou...

Страница 10: ...0V setting Power Connector IEC with cable retainer ENVIRONMENT Operating 0 C to 50 C 32F to 122 F Storage 20C to 60C 4F to 140F PHYSICALSPECIFICATIONS Dimensions Front Panel 133 x 483mm 5 1 4in x 19 i...

Страница 11: ...o and from the Dealer or Soundcraft and postage must be prepaid 4 This warranty shall only be available if a the Equipment has been properly installed in accordance with instructions contained in Soun...

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Страница 13: ...circuitry may result Likewise on all balanced inputs avoid sources with large common mode DC AC or RF voltages as these will reduce the available signal range on the inputs Note that OdBu 0 775V RMS...

Страница 14: ...nnection and adequate screening of those interconnections This must be done in a logical sequence to avoid problems and assist in the localisation of problem equipment Connect the Main or Booth system...

Страница 15: ...ety regulations are not being infringed WORKING SAFELYWITH SOUND Althoughyournewconsolewillnotmakeanynoiseuntilyoufeeditsignals ithasthecapabilitytoproducesoundswhichwhenmonitored through an amplifier...

Страница 16: ...L CONSIDERATIONS The 1620LE Mixer will operate satisfactorily over a range of ambient temperatures from 0 C to 50C 32F to 122F and up to 80 non condensing relative humidity If the system is installed...

Страница 17: ...the recessed switch EXTERNAL CONNECTIONS Note See also the Block Diagram page 22 for further details Input and output signal wires should be shielded cable connected in accordance with standard wirin...

Страница 18: ...uxiliary Line Level Inputs Five sets of auxiliary line level inputs are available on the Model 1620LE labelled AUX A B C D and E Connection on the rear panel is through RCA type phono jacks These inpu...

Страница 19: ...izer crossover network or other connected device we recommend connecting a 620 ohm 1 2 watt resistor across the line at the end of the cable which is hooked up to the input of that device This will es...

Страница 20: ...l control should be provided JACK Signal Tip Gnd Ring Gnd Ring Tape Outputs Two parallel sets of RCA type phono jacks provide convenient means for connecting to tape recorders These outputs are not af...

Страница 21: ...sformer less circuitry or input transformers minimize common mode noise or interference which may be induced into the interconnecting wires or cables Where audio must be transmitted through cables or...

Страница 22: ...22 BL BL BL BL BLOCK DIA OCK DIA OCK DIA OCK DIA OCK DIAGRAM GRAM GRAM GRAM GRAM...

Страница 23: ...ut positions labelled AUX 1 AUX 4 have input source selector switches allowing any of these four positions to control any of five auxiliary inputs AUX A E or the output of an optional internal preampl...

Страница 24: ...six position selector switch determines which input will be heard When cueing be certain that the level control for that input is completely off to avoid cueing through the house system HOUSE BOOTH A...

Страница 25: ...GURATIONS MICROPHONE GAIN ADJUSTMENT As supplied the microphone preamplifier card Part No 1620 MC is set for 64 dB of gain which should be adequate for most installations If necessary the gain may be...

Страница 26: ...he connector on the motherboard into which the new preamplifier card will be installed This switch allows its AUX input to be used as a line input when no preamplifier is installed and must be switche...

Страница 27: ...the mother board Note the orientation of the card and make certain that the card correctly mates with the connector on the motherboard 4 If required adjust the gain of the preamplifier by rotating the...

Страница 28: ...AUX A E from the AUX 4 control since bypassing the extra tone control and master gain amplification stages will cause the AUX 4 control to be out of phase with the other AUX controls If the same line...

Страница 29: ...ontrols 1 Remove the three screws fastening the top cover of the 1620LE to the chassis and remove the cover 2 Locate the Tone Control circuit board on the right side of the front panel 3 Press and rel...

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