RM.404 Professional DJ Mixer OWNER’S MANUAL STANTON MAGNETICS, Inc. information@stantondj.com ©2004 Stanton Magnetics, Inc.
Please read carefully before use of this product Failure to follow the instructions printed below may void warranty • Follow all security advice printed on your mixer • When removing the unit's AC plug from the power source, grasp and pull the plug, NEVER the cord itself! • Avoid placing your mixer near heat sources, such as power amplifiers. • When in use, place your mixer on a stable surface, away from vibration. Always use care when carrying your mixer.
Welcome Congratulations and thank-you for purchasing the latest addition to the growing Stanton family. Sporting a new attitude, and a fresh, modern look, the RM.404 is a 4-channel, rackmount mixer loaded with features and innovations giving club and mobile DJs a powerful, yet simple tool to mix, create, and perform their best.
RM.404 Top Panel (FUNCTIONS) The controls and functions of the RM.404 are grouped in alphabetical sections (clockwise from upper right corner) for your reference and then listed numerically for more detail.
RM.404 Top Panel (FUNCTIONS) Section A: Output Meters 1. Meter Switch: Switches the display of the Level Meter (#2) between Master or Zone output signals. 2. Level Meter: Displays the left and right Master or Zone output level of the mixer. Red indicates clipping.
RM.404 Top Panel (FUNCTIONS) Section B: Output Controls 3. Master Level: Controls the overall output level of the audio signal sent through the Master connectors (see Output Connections.) 4. Stereo/Mono Switch: Switches the Master output between a stereo or mono signal. Mono mode can be used to accommodate some large PA systems. It can also be engaged in the event of a sudden loss of stereo signal in phonograph cartridge connections [Stereo = UP position.] 5.
RM.404 Top Panel (FUNCTIONS) Section C: Cue Controls 7. Split Cue: Controls how the CUE will be heard in the headphones. In the "stereo" position, the pre-selected Cue (#29) will be heard as a stereo signal in the headphones (full stereo audio signal in both ears.) In "split" position, the pre-selected Cue (#29) will be heard on one side of the headphones, while the Master Output (#3) signal is heard on the other side (different audio signals in each ear.) 8.
RM.404 Top Panel (FUNCTIONS) Section D: Crossfader Controls 12. Fader Start (A): Activates this side (A) of the Crossfader (#13) for use with components with the Fader Start feature. Moving the crossfader away from the left-most position will cause the device (CD / Turntable) to start playing. This allows DJs to activate a device by using the fader as if they were pressing Play. [Fader Start compatible device (CD / Turntable) is required.
RM.404 Top Panel (FUNCTIONS) Section E: MP3/Aux In 15. MP3 / Aux. Input: This 1/8" Mini-jack (3.5 mm) input was designed for easy access and connectivity to a variety of portable devices (portable MP3 / mini-disc / CD players / iPods.) Use this input instead of having to re-wire the back panel of the mixer or use adapters.
Section F: Mic Controls (continued) 16. Mic-1 XLR Input: Primary connection for a standard balanced (XLR) microphone. 17. Mic-1 1/4" Input: Primary connection for a standard unbalanced (1/4") microphone. 18. Mic Level: Controls the output level (volume) of Microphone 1 only (both connections.) 19. Mic EQ (HIGH): Controls High frequency equalization for BOTH microphones (+10/-10 dB.) [Note: Any changes made to EQ settings will affect the overall output level of the microphones.] 20.
RM.404 Top Panel (FUNCTIONS) Section G: Channel Controls 23. Input selector switch: Selects phono or line input for the corresponding channel. This is a three way switch allowing input from only one device at a time (Phono or either of two Line level inputs (for connections in rear panel of mixer see Sections L-O.)) 24. Channel EQ (HIGH) : Controls High frequency equalization of corresponding channel (+9/-26 dB.) [Note: Any changes made to EQ settings will affect the overall output level of this channel.
RM.404 Top Panel (FUNCTIONS) Section G: Channel Controls (continued) this setting too high may result in a loss of sound quality (distortion.) [Note: For best results set this control in the number 7 (2 O'Clock) position for unity gain. If further adjustment is needed, this is a good reference point.] 26. Channel EQ (MID) : Controls Mid frequency equalization of corresponding channel (+9/-26 dB.) [Note: Any changes made to EQ settings will affect the overall output level of this channel.] 27.
RM.404 Rear Panel (FUNCTIONS) Section Section Section Section Section Section Section Section H: I: J: K: L: M: N: O: Power Master Output Zone Output RCA Outputs Channel 4 Inputs Channel 3 Inputs Channel 2 Inputs Channel 1 Inputs Section H: Power H. Power Switch & Connection: This is the ON/OFF power switch for the entire mixer. Only use the supplied adaptor (18v AC 1A) or one authorized by a Stanton dealer or our service department (make sure the AC cable is properly secured by the screw connection.
RM.404 Rear Panel (FUNCTIONS) Section I: Master Output I. Master Output Connection: These Right & Left XLR connections are used for the Master Output signal. Volume levels for this output are controlled by the section B front panel controls. NOTE: The TRIM knob sets the maximum volume allowed for this output (be sure it is set properly.) It should be used in conjunction with the Master Fader (#3) as well as individual Gain (#25) and Channel Faders (#30) when establishing optimal overall output for the RM.
RM.404 Rear Panel (FUNCTIONS) Section L: Channel 4 Inputs L. Channel 4 Input Connections: This group of connections are ALL inputs which are only routed to Channel 4 (select input using section G, (#23) from top panel.) Only two lines (L4, L8) and one phono (PH4) OR MIC 3 can be used as inputs here (the select switch located here toggles between PH4 and MIC 3.) NOTE: Line inputs are used to connect to line level sources such as CD players, samplers, tape players, etc.
RM.404 Rear Panel (FUNCTIONS) Section O: Channel 1 Inputs O. Channel 1 Input Connections: This group of connections are ALL inputs which are only routed to Channel 1 (select input using section G, (#23) from top panel). Only one line (L1) and one phono (PH1) can be input here. The “GND” connections are used only for phono inputs which require a Ground cable and can be used for any phono input on any channel.
Application Example This is a typical setup you’ll find in many nightclubs: 2 turntables, 2 CD players, plus a microphone for the DJ. Here’s how you would set up your equipment with the RM.404: 1. Be sure all equipment is powered “OFF” and all of the RM.404’s Channel faders and Level knobs are at minimum volume. 2. Connect the turntables to the Phono inputs of Channels 1and 4. Be sure the rear-panel toggle switch for Channel 4 is set to “PH2” or you won’t hear anything.
Superior Sound Technology The audio quality of the RM.404 is nothing short of revolutionary for DJ mixers in its price class. The RM.404 was designed by Stanton’s new product development team, seasoned audio professionals who have designed world class professional recording studio and broadcast mixers and product managers who are working DJs and work closely with some of the world’s most respected DJs. They have taken their knowledge and experience to create the RM.
Technical Specifications Line Inputs.................................................................................7 x 2 (RCA) , -10 dBV / >10 kOhm 1 (1/8” stereo mini-jack), 10 dBV / >10kOhm Phono / CD Inputs...................................2 x 2 (RCA), -46 dBV / -10 dBV / 47 kOhm / >10 kOhm Phono..............................................................................1 x 2 (RCA), -46 dBV (Phono) / 47 kOhm Phono / Mic Input..................................
Troubleshooting Problem / Symptom No Sound No Sound- Master Output (Booth and Zone are OK) Possible Cause/ Solution Is the power on? Check the power switch. Make sure the channels are assigned properly to the crossfaders. Make sure INPUT GAIN is turned up and output level control is turned up. Depending on the input, check the rear panel selector switches. Check the top panel channel selector switches. Make sure that MASTER TRIM on the rear panel is turned up.
Troubleshooting Problem / Symptom Possible Cause/ Solution Sound is distorted Phono Input Only plug turntables into this input, do not plug in CD players or other Line Level sources. Turn down the INPUT GAIN CONTROL I hear hum. Make sure you are using good shielded audio cables. Some less expensive audio cables can be susceptible to hum and interference. Keep your audio cables away from AC power cables and AC transformers.
Warranty Stanton Magnetics, Inc. – Warranty Provision – Returns for Repairs or Replacement Warranty Through Stanton’s authorized dealers around the World, Stanton, or one of Stanton’s authorized distributors outside the U.S., will, without charge, repair or replace, at the sole discretion of the entity responsible for making the repair or providing the replacement, any Stanton merchandise proved defective in material or workmanship for a period of one (1) year (three (3) years for C.D.
