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14

MP25

CLUB MIXER

Faders

Maintaining the Magnetic Crossfader

There are no electrical contacts to clean!

The crossfader in the MP25 is designed with materials highly 

resistant to corrosion and most chemicals. While the crossfader 

will handle millions of operations, it may become dirty over 

time. Bad things may be spilled or sprayed into the crossfader. In 

either case, the crossfader is not damaged and the sound quality 

is unaffected. 

Cleaning is only required to maintain the feel of the 

crossfader

.

The crossfader is self-lubricating and with normal use, should 

not require additional lubrication. If you wish, you can use a 

light silicone lubricant rated for use with electrical parts. This 

will help maintain the feel. We recommend Caig DeoxIT Fader-

Lube F100 spray lubricant.

Order DeoxIT® F100 from CAIG Laboratories, Inc.

 

 

 

12200 Thatcher Ct.

 

 

 

Poway, CA  92064

 

  Phone 

858-486-8388

 

  Fax 

858-486-8398

 

  Web 

www.caig.com

Never use a heavy lubricant or grease

. Doing so will not dam-

age the faders, but can undo the feel. If grease was used, it may 

be removed by following the cleaning instructions.

Crossfader Removal and Replacement

For cleaning and lubrication, follow these directions:

1. Required tools: #1 Philips screwdriver and a pair of clean 

hands.

2. Disconnect the power.

3. Remove only the two 4-40 screws attaching the crossover 

faceplate as pointed out below.

4. Remove the crossfader from the mixer, and carefully remove 

the ribbon cable from the back of the circuit board.

Sensors

5. Move the carrier all the way to one side.

6. Use a soft lint-free cloth to wipe off the rails.

7. Add a drop of silicone lubricant (or quick spray from aerosol) 

to the center of each rail.

8. Move the carrier back and forth to distribute lubricant.

9. Do not bend the torsion spring. Do not disturb the position of 

the small sensors at each end of the Fader. If you accidentally 

do, make sure the parts are standing straight before reinstall-

ing.

10. CAUTION: Sugary liquids may damage the crossfader 

beyond repair. You might be able  to save it by removing the 

crossfader and thoroughly rinsing it in hot water. Make sure 

the part is clean and dry before lubricating or reinstalling.

11. Removal of grease or other stubborn debris may require 

alcohol or contact cleaner. Make sure the part is clean and dry 

before lubricating or reinstalling.

12. Problems? Contact Rane Corporation customer service at 

425-355-6000 or email us at [email protected].

Channel Fader Cleaning

With heavy use in harsh environments, the channel faders may 

need lubrication. This treatment extends longevity and can make 

used faders as good as new. We recommend any of the following 

cleaning solutions:

• Caig DeoxIT FaderLube F100 spray lubricant

• Caig DeoxIT FaderLube F5 spray cleaner

• CRC 2-26 (www.crcindustries.com)

Order CaiLube MCL

®

 from CAIG Laboratories at the same 

address previously listed.

1. Position the fader at mid-travel.

2. Spray cleaner/lubricant into both ends of the fader.

3. Move the fader over its full travel back and forth a few times.

4. Wipe off excess fluid.

If cleaning does not fix sny fader, please contact Rane Corpora-

tion customer service at 425-355-6000 or email us at info@rane.

com if you are in the U.S.A. Outside the U.S.A, please contact 

your distributor for service.

Summary of Contents for MP25

Page 1: ...NO USB LOOP EXT LOOP RIGHT LEFT CUE MAIN 10 0 2 4 8 6 10 0 2 4 8 6 10 0 2 4 8 6 10 0 2 4 8 6 10 0 2 4 8 6 HIGH LOW OL 6 3 0 3 12 6 18 0 1 3 4 5 6 7 8 9 10 2 0 1 3 4 5 6 7 8 9 10 2 0 1 3 4 5 6 7 8 9 10 2 0 1 3 4 5 6 7 8 9 10 2 10 0 2 4 8 6 10 0 2 4 8 6 10 0 2 4 8 6 10 0 2 4 8 6 6 OFF 6 OFF RIGHT LEFT 10 0 2 4 8 6 RIGHT LEFT 10 0 2 4 8 6 HIGH LOW 10 0 2 4 8 6 HIGH LOW 10 0 2 4 8 6 HIGH LOW 6 OFF 6 O...

Page 2: ... AC mains disconnect device and must remain readily operable To completely disconnect this apparatus from the AC mains disconnect the power supply cord plug from the AC receptacle 16 This apparatus shall be connected to a mains socket outlet with a protective earthing connection 17 When permanently connected an all pole mains switch with a contact separation of at least 3 mm in each pole shall be ...

Page 3: ...ible Pour déconnecter totalement l appareil du secteur débranchez le câble d alimentation de la prise secteur 16 Cet appareil doit être branché à une prise terre avec protection 17 Quand il est branché de manière permanente un disjoncteur tripolaire normalisé doit être incorporé dans l installation électrique de l immeuble 18 En cas de montage en rack laissez un espace suffisant pour la ventilatio...

Page 4: ...kHz BW Max Output RCA and Unbalanced TS 4 Vrms Max Output XLR and Balanced TRS 8 Vrms Zone Booth Auto mono left and right jacks Main Output Mono switch rear panel attenuator 0 to 24 dB Dynamic Range Line Input to Line Output 100 dB A weighted Analog to Digital Converters ADCs 24 bit 48 kHz Dynamic range 101 dB A weighted Digital to Analog Converters DACs 24 bit 48 kHz Dynamic range 107 dB A weight...

Page 5: ...both Left and Right jacks Stereo Record outputs on RCA S PDIF and USB USB Four stereo playback channels stream audio directly from your favorite playback mixing beat making and looping applica tions to the MP25 s digital mixer engine Four stereo record channels stream the four post fader program channels to your audio application for multi track recording A fifth stereo record channel streams Mic ...

Page 6: ...d RCA and balanced XLR jacks with pin 2 hot per AES standards XLR preferred If the Main output feeds a mono PA system engage the Mono switch on the rear of the MP25 If the Main output is able to clip the input to the PA system when the front panel Main Level control is at maximum reduce the maximum output level using the rear panel Max Out control The Booth and Zone outputs are from balanced TRS t...

Page 7: ...s are D1 D4 the MP25 s digital program inputs Each of the four program strips has access to one of the four digital input channels using the Source selector on the program strip The fifth stereo playback channel is the return channel of the FlexFX USB insert loop Digital Outputs The MP25 s USB audio interface includes six stereo record chan nels Record channels are audio streams from the MP25 to t...

Page 8: ...filter cut off moves from 20 kHz toward 20 Hz as the knob is turned counter clockwise High pass filter cut off moves from 20 Hz toward 20 kHz as the knob is turned clockwise The filter resonance can be switched high or low in the computer s MP25 driver control panel The A B Post switch assigns the program channel to A side B side or Post Crossfader FlexFX assign takes the channel out of the Main M...

Page 9: ...e Outputs are available on balanced TRS jacks Left and right jacks automatically provide a mono signal if the other plug is not inserted Record Outs Stereo unbalanced RCA and S PDIF outputs The S PDIF output is a 24 bit 48 kHz digital output The Main Mix Mic 1 or Mic 2 may be recorded via USB record channel six Record source selection is made in the computer s MP25 driver control panel Magnetic Cr...

Page 10: ...n level allows you to bring the signal of the affected output back up to your normal mix level The FlexFX Bus is always output on the analog loop send even if Ext Loop is bypassed This means you may always use the analog Send to record the dry FlexFX mix 3The USB Loop button engages or bypasses the USB effects insert The USB insert uses USB record 5 and playback 5 to form an effects loop Even when...

Page 11: ... Select Start Control Panel Rane MP25 Core Audio Macintosh The MP25 uses a low latency Core Audio device driver to inter face with applications on Macintosh operating systems Installation 1 Locate the MP25 pkg file either on the installation CD or where you downloaded the driver from www rane com 2 Double click the package file 3 Follow the prompts on the screen 4 Reboot your Mac and you are ready...

Page 12: ...ff 1 Dim PGM 1 4 High pass Low pass Filter Resonance 0 64 Low 65 127 High MIC 1 MP25 CLUB MIXER MIC 2 CUE SPLIT CUE PHONES BOOTH LEVEL LEVEL LEVEL PAN PGM 1 CUE PGM 2 PGM 3 ZONE MAIN PGM 4 FLEXFX CUE CUE LEVEL LEVEL A B POST A B POST A B POST A B CONTOUR POST MIC ON TALKOVER FLEXFX MIC ON TALKOVER FLEXFX SOURCE D1 A3 A4 P1 A1 A2 SOURCE D2 A3 A4 P2 A1 A2 SOURCE D3 A3 A4 P3 A1 A2 SOURCE D4 A3 A4 P4 ...

Page 13: ...LOOP OFF AUDIO DRIVER CONTROL PANEL USB 6 RECORD 11 12 USB 6 Record Main Mix Mic 1 Mic 2 USB 1 PLAYBACK 1 2 D1 USB 2 PLAYBACK 3 4 D2 USB 3 PLAYBACK 5 6 D3 USB 4 PLAYBACK 7 8 D4 USB 5 PLAYBACK 9 10 USB LOOP ON USB PLAYBACK INPUTS Software Most audio software is compatible with the ASIO and Core Audio drivers included with the MP25 which includes a low latency USB 2 0 high speed 10 input 12 output a...

Page 14: ...e side 6 Use a soft lint free cloth to wipe off the rails 7 Add a drop of silicone lubricant or quick spray from aerosol to the center of each rail 8 Move the carrier back and forth to distribute lubricant 9 Do not bend the torsion spring Do not disturb the position of the small sensors at each end of the Fader If you accidentally do make sure the parts are standing straight before reinstall ing 1...

Page 15: ...erconnections Grounding and EMC practices Shields of connectors in audio equipment containing active circuitry Rane s policy is to accommodate rather than dic tate However this document contains suggestions for external wiring changes that should ideally only be implemented by trained technical personnel Safety regulations require that all original grounding means provided from the factory be left...

Page 16: ...nal grounding system improperly thus creating balanced equipment that is not immune to the cabling s noise currents This is one reason for the bad reputation sometimes given to bal anced interconnect A second reason for balanced interconnect s bad reputation comes from those who think connecting unbalanced equipment into superior balanced equip ment should improve things Sorry Balanced inter conne...

Page 17: ...on Figure 1b Recommmended practice CASE COMMON WRONG PRACTICE RECOMMENDED PRACTICE OPTIONAL CASE 1 2 3 3 1 2 CHASSIS GROUND SIGNAL GROUND CHASSIS GROUND CHASSIS GROUND Not using signal ground is the most radical depar ture from common pro audio practice Not that there is any argument about its validity There isn t This is the right way to do it So why doesn t audio equipment come wired this way We...

Page 18: ...h consistent success indicates this and other acceptable solutions to RF issues exist though the increasing use of digital and wireless technology greatly increases the possibility of future RF problems If you ve truly isolated your hum problem to a spe cific unit chances are even though the documentation indicates proper chassis grounded shields the suspect unit is not internally grounded properl...

Page 19: ...References 1 Neil A Muncy Noise Susceptibility in Analog and Digi tal Signal Processing Systems presented at the 97th AES Convention of Audio Engineering Society in San Fran cisco CA Nov 1994 2 Grounding Shielding and Interconnections in Analog Digital Signal Processing Systems Understanding the Basics Workshops designed and presented by Neil Muncy and Cal Perkins at the 97th AES Convention of Aud...

Page 20: ... 20 24 24 19 18 17 B B B B A A A A A A FEMALE BALANCED XLR NOT A TRANSFORMER NOR A CROSS COUPLED OUTPUT STAGE FEMALE BALANCED XLR EITHER A TRANSFORMER OR A CROSS COUPLED OUTPUT STAGE BALANCED TRS NOT A TRANSFORMER NOR A CROSS COUPLED OUTPUT STAGE BALANCED TRS EITHER A TRANSFORMER OR A CROSS COUPLED OUTPUT STAGE FLOATING UNBALANCED TRS TIP RING SLEEVE SLEEVE IN UNIT NC OR 3 5 mm UNBALANCED TS TIP S...

Page 21: ... RED SHIELD RED SHIELD SHIELD RED RED BLACK N C N C N C RED BLACK RED SHIELD N C BLACK RED BLACK RED 3 NC 2 RED 1 SHIELD 2 RED 1 SHIELD 3 BLACK 2 RED 1 NC 3 BLACK 2 RED 1 NC 3 BLACK 2 RED 1 SHIELD SHIELD FEMALE FEMALE FEMALE RED SHIELD RED BLACK SHIELD SHIELD RED BLACK RED BLACK BLACK RED RED SHIELD RED SHIELD RED SHIELD RED SHIELD RED BLACK 2 CONDUCTOR SHIELDED CABLE 2 CONDUCTOR SHIELDED CABLE 2 ...

Page 22: ...D 3 BLACK 2 RED 1 SHIELD 3 BLACK 2 RED 1 SHIELD 3 BLACK 2 RED 1 SHIELD SHIELD BLACK SHIELD RED BLACK SHIELD RED BLACK RED SHIELD SHIELD BLACK RED SHIELD BLACK RED SHIELD BLACK RED SHIELD BLACK RED SHIELD BLACK RED SHIELD RED SHIELD RED SHIELD RED SHIELD RED BLACK RED N C N C BLACK RED BLACK RED BLACK RED RED SHIELD RED SHIELD RED SHIELD RED 24 S BLACK T RED CROSS COUPLED OUTPUT ONLY CONNECT BLACK ...

Page 23: ... simply distorting the heck out of the audio In case you re wondering both sound terrible When using a software program it s important to adjust your level controls properly within the program before tweaking the level controls on your mixer Once the level meters within the software are adjusted properly i e no red you re ready to adjust the level controls on your mixer Using Rane mixer metering R...

Page 24: ...e red and then back the level down until out of the red giving yourself a little room for sudden level peaks Repeat the same process for PGM channel 2 if using more than two channels PGM channel 3 and PGM channel 4 4 While playing audio using each PGM channel check the master output level meters If the master output level meters are in the red make small adjustments to each PGM channel gain contro...

Page 25: ...event that the equipment is modified without writ ten consent of the manufacturer This declaration of conformity is issued under the sole responsibility of Rane Corporation Type of Equipment Professional Audio Signal Processing Brand Rane Model MP25 Immunity Results THD N 4 dBu 400 Hz BW 20 Hz 20 kHz Test Description Specification Conditions RF Electromagnetic Fields Immunity 80 MHz 1000 MHz 1 kHz...

Page 26: ...IS LIMITED WARRANTY SHALL BE THAT WHICH IS DESCRIBED TO THE ORIGINAL RETAIL PURCHASER BY THE AUTHORIZED RANE DEALER OR DISTRIBUTOR AT THE TIME OF PURCHASE Rane Corporation does not however warrant its products against any and all defects 1 arising out of materials or workmanship not provided or furnished by Rane or 2 resulting from abnormal use of the product or use in violation of instructions or...

Page 27: ...U S AT THE RANE FACTORY IN THE U S If the product is being sent to Rane for repair please call the factory for a Return Authorization number We recommend advance notice be given to the repair facility to avoid possible needless shipment in case the problem can be solved over the phone UNAUTHORIZED SERVICE PERFORMED ON ANY RANE PRODUCT WILL VOID ITS EXISTING FAC TORY WARRANTY FACTORY SERVICE If you...

Page 28: ...MP25 CLUB MIXER ...

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