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Manual-7

MQ 302 SPECIFICATIONS

Parameter

Specification

Limit

Units

Conditions/Comments

Equalizer:
..........Channels

Two

..........Bands

(2x30) 1/3-Octave ISO Spacing

From 25 Hz to 20 kHz

..........Type

Constant-Q

Smooth combining

..........Accuracy

3

%

Center frequency

..........Travel

20

mm

Positive grounded center detent

..........Range

±12

1

dB

Inputs:
..........Type

Active Balanced

..........Connectors

XLR & ¼" TRS

Pin 2 “hot” per AES standards

..........Impedance

20k

1%

ohms

..........Maximum Level

21

1

dBu

Outputs:
..........XLR

Active Balanced

100 ohms impedance each leg

..........¼"

Active Unbalanced

100 ohms impedance

..........Maximum Level

+20

1

dBu

2k ohms balanced & unbalanced

Overall Gain Range

Off to +6

-0/+4

dB

Sliders centered

RFI Filters

Yes

Frequency Response

20-20 kHz

+0,-2

dB

THD+Noise

0.009

.002

%

+4 dBu, 20-20 kHz

IM Distortion (SMPTE)

0.005

.003

%

60 Hz/7 kHz, 4:1, +4 dBu

Signal-to-Noise Ratio

20 kHz noise BW; balanced out re +4 dBu

96

2

dBr

Sliders centered, re +4 dBu, 20 kHz BW

76

2

dBr

Sliders all boosted, re + 4 dBu, 20 kHz BW

91

2

dBr

Sliders all cut, re + 4 dBu, 20 kHz BW

Channel Separation

80

3

dB

1 kHz

Common Mode Rejection

40

1

dB

1 kHz

Maximum Power

12

W

Unit: Agency Listing
………120 VAC model

UL

UL 6500 (file E104174)

cUL (Canada)

C22.2 (file E104174)

………230 VAC model

CE (EMC) EN55013, EN55020

EMC Directive 89/336/EEC

CE (Safety) EN60065

LV Directive 73/23/EEC

..........Construction

All Steel

..........Size

1.75"H x 19"W x 8.5"D (1U)

(4.4 cm x 48.3 cm x 21.6 cm)

..........Weight

5 lb

(2.3 kg)

Shipping:
..........Size

4.25" x 20.3" x 13.75"

(11 cm x 52 cm x 35 cm)

..........Weight

9 lb

(4.1 kg)

Note: 0 dBu = 0.775 Vrms

Summary of Contents for MQ 302

Page 1: ...y Begin by setting all sliders to their center detent 0 dB and the INPUT LEVEL to 8 Try to make more cuts than boosts After equalizing use the EQ switch to compare equalized and non equalized signal While EQ is switched to ACTIVE out adjust the INPUT LEVEL to the same level as when EQ is switched to BYPASS in You may use either the XLR or connectors for Inputs or Outputs Connect only one INPUT typ...

Page 2: ...se sliders controls the output level of both Channels of the 30 bandpass filters Center position is grounded for guaranteed flat response Cable Wiring In agreement with IEC and AES ANSI standards XLR wiring convention is pin 2 Positive hot pin 3 Negative cold and pin 1 Signal ground for unbalanced use Pin 1 and the connector case or shell are tied to chassis ground INPUT LEVEL control This control...

Page 3: ... TS jacks Using both types of Outputs are permissible to drive two devices such as an amplifier and a recorder LEFT RIGHT INPUTS Choose between the balanced XLR or the balanced unbalanced TRS jacks but only use one Inserting a TS jack will work however always use balanced lines especially when connecting cables over 10 feet in length Consult SOUND SYTEM INTERCONNECTION on page Manual 8 ...

Page 4: ...thing the equalizer slider settings will change with each new location which in turn affects the control voltage and threshold responses of the compressor and renders it inconsistent Secondly healthy amounts of boost often strains the dynamic range of compressors and increases the danger of distortion and or overload UPSTREAM OF THE LIMITER If a limiter is installed strictly to protect the drivers...

Page 5: ... improvement in the overall performance of your sound system while saving you a great deal of time and effort A realtime analyzer helps you quickly achieve things nearly impossible by ear flatten speaker response minimize feedback remove room resonance and allows accurate crossover alignment In most cases simply normalizing or flattening a sound system is a surprisingly drastic improve ment but do...

Page 6: ...oint for measuring voltage levels Usually a large conducting body such as the earth or an electric circuit connected to the earth Chassis should always be at earth potential WARNING SHOCK HAZARD Never use an AC line cord ground lift adapter or cut off the 3rd pin It is illegal and dangerous headroom The level in dB between the typical operating level and clipping For example a nominal 4 dBu system...

Page 7: ...ilters Yes Frequency Response 20 20 kHz 0 2 dB THD Noise 0 009 002 4 dBu 20 20 kHz IM Distortion SMPTE 0 005 003 60 Hz 7 kHz 4 1 4 dBu Signal to Noise Ratio 20 kHz noise BW balanced out re 4 dBu 96 2 dBr Sliders centered re 4 dBu 20 kHz BW 76 2 dBr Sliders all boosted re 4 dBu 20 kHz BW 91 2 dBr Sliders all cut re 4 dBu 20 kHz BW Channel Separation 80 3 dB 1 kHz Common Mode Rejection 40 1 dB 1 kHz...

Page 8: ...though this assumes the interconnected equipment is internally grounded properly Since most equipment is not internally grounded properly connecting both ends of the shield is not often practiced since doing so can create noisy interconnections A common solution to these noisy hum and buzz problems involves disconnecting one end of the shield even though one can not buy off the shelf cables with t...

Page 9: ...Manual 9 VARIOUS XLR CABLE ASSEMBLIES ...

Page 10: ...al 10 All features specifications subject to change without notice MAR98 Rane Corporation 10802 47th Ave W Mukilteo WA 98275 5098 TEL 425 355 6000 FAX 425 347 7757 WEB http www rane com MQ 302 BLOCK DIAGRAM ...

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