Rane RE 27 Bedienungsanleitung PDF herunterladen

OPERATING / SERVICE MANUAL

RE 27

REALTIME EQUALIZER

QUICK START

If you are familiar with real time analyzers and graphic equalizers, feel free to jump right in. To avoid some of the

lurking sharks read these few tips as a reminder of what it is you already know:

1. FLAT IS NOT BEAUTIFUL. Equalizers have two basic purposes: correction and enhancement. The Rane analyzer

allows you to accurately correct system response to each location. A task very difficult to do by ear. Once this is quickly

done, then you adjust for further sound quality enhancement by ear; only rarely will a system be left in a “flat” condition.

2. USE MORE THAN ONE TEST MICROPHONE LOCATION. Speaker dispersion characteristics vary greatly, from

beamy highs to boomy bass traps. While performing the pink noise test, try at least two different test mic locations and

average the two if they differ.

3. USE ENOUGH PINK NOISE VOLUME TO OVERRIDE BACKGROUND NOISE. There’s no need to run

deafening pink noise levels to EQ a system. Just be sure that no green/red LED responds when pink noise is turned off (if

they do, background noise is causing erroneous readings and pink noise should be turned up higher).

4. USE ±3 dB DISPLAY SETTING FOR LOW FREQUENCY ADJUSTMENTS. The crest factor (peak response) of

true pink noise causes considerable LED flutter in the ±l dB mode, making it difficult to adjust quickly. We recommend

that the ±1 dB setting be used on frequencies below 500 Hz or so; use ±1 dB on the more sensitive mids and highs.

5. THE ANALYZER SECTION CAN BE USED WITH ANY OTHER EQUALIZER. The analyzer section of the RE

27 responds to whatever the microphone picks up. Simply run pink noise through the desired equalizer (channel) and

speaker and use the Rane analyzer to adjust that particular EQ. The RTA is a completely separate instrument.

6. MONITORING -PROGRAM WITH ANALYZER DISPLAY. When the front panel microphone is unplugged, the

analyzer display automatically monitors the output of the equalizer section. Use this feature to identify specific feedback

points by watching for red LEDs during the performance. You can then apply EQ exactly where it’s needed very quickly.

If all else fails, read the rest of the manual.

OPERATING INSTRUCTIONS

Since the RE 27 features a unique form of realtime analyzer, we highly recommend that you read this section before

performing an alignment with pink noise. If you’ve never used an analyzer before, use these instructions on your first

occasion. You’ll be delighted at how simple it really is.

1. SYSTEM HOOK-UP:

Connect the RE 27 into your system as shown on page 6 or 7, whichever is appropriate. Plug

the Rane condenser microphone into the front panel RTA MIC INPUT.

CAUTION: Do not plug any other microphone into

the front panel jack: This jack contains DC voltage which may be damaging to other microphones.

For special applications

you can use another microphone by patching into a send/receive loop on a mixer as described in Rane Note 104 (available on

request).

2. BACKGROUND NOISE CHECK:

Any background noises such as air conditioners, talking, nearby traffic and the

like can cause false readings on the analyzer display if the pink noise volume through the speakers is not loud enough to

drown these noises out. Before turning on the Pink Noise, turn up the RTA LEVEL control on the RE 27 until some of the

green and red LEDs respond on the display: now you’re looking at background noise. Slowly turn the RTA LEVEL control

back counter-clockwise until all the green and red LEDs are off, and no background noise is showing on the display. You

will now have to run the pink noise volume through the speakers loud enough to make sure that the RTA LEVEL control is

not turned clockwise (up) from this setting, otherwise the background noise will falsify the readings.

continued on page 4...

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Inhaltsverzeichnis

Seite 1 - OPERATING / SERVICE MANUAL

OPERATING / SERVICE MANUALRE 27REALTIME EQUALIZERQUICK STARTIf you are familiar with real time analyzers and graphic equalizers, feel free to jump rig

Seite 2 - FRONT PANEL DESCRIPTION

FRONT PANEL DESCRIPTION1. EQ LEVEL CONTROL: This controls level through the equalizer section and provides up to 6 dB overall gain. Turnthis control d

Seite 3 - REAR PANEL DESCRIPTION

REAR PANEL DESCRIPTION1. PINK NOISE LEVEL ADJUST: Use a 1/8" screwdriver to adjust the output from the Pink Noise generator from 0 to1.2 volts (-

Seite 4

3. PINK NOISE RUN-UP: Turn down the mixer output controls before switching on the Pink Noise, so that you don’tdetonate your speaker cabinets. Now swi

Seite 5

8. FINAL EQUALIZER ADJUSTMENTS: Once the RE 27 is all “greened out”, you’re done with the pink noisealignment test. Now the speakers are properly coup

Seite 6 - MAIN SPEAKER EQUALIZATION

INSTALLATIONThis section contains several diagrams which shows many, but by no means all, of the ways to connect the RE 27 into asound reinforcement o

Seite 7 - STAGE MONITOR EQUALIZATION

STAGE MONITOR EQUALIZATIONIMPORTANT NOTES:1. This set-up, using the Rane microphone, provides the most expedient method to optimize stage monitor soun

Seite 8 - IMPORTANT SAFETY INSTRUCTIONS

RISK OF ELECTRIC SHOCKDO NOT OPENCAUTIONTo reduce the risk of electrical shock, do not open the unit. No user serviceable parts inside. Refer servicin

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