Stanton DJ Equipment RM 22 User Manual

Troubleshooting  
Problem / Symptom  
Possible Cause/ Solution  
Only plug turntables into this input, do not plug in  
CD players or other Line Level sources. Turn down  
the INPUT GAIN CONTROL  
Sound is distorted  
Phono Input  
R M -2 2 Professional DJ Mixer  
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. Make sure the mixer is not mounted  
too close to high power amplifiers or lighting  
equipment power supplies or ballasts. Make sure  
your turntables are properly  
I hear hum.  
grounded.  
If you are using a microphone, make sure that  
you are not too close to the speakers or  
headphones. If you hear feedback on the phono  
input, then the turntable may be mounted to close  
to the speakers. Also, make sure the turntable  
base is placed on a surface that does not vibrate  
or resonate easily when the speakers are turned  
up loudly.  
I hear  
feedback  
Warranty  
This unit has been designed and manufactured using quality components.  
Therefore, it is warranted to be free from defects in materials (limited as specified  
below), and workmanship for a period of twelve (12) months from the original  
purchase date. During this period, all service and parts  
necessary to repair a defect will be free of charge. This limited warranty applies to  
mechanical parts which are subject to wear and tear as specified:  
O W N E R ’S M A N U A L  
• Faders, specified durability: 15,000 cycles  
• Rotary potentiometers, specified durability: 10,000 cycles  
• Switches, specified durability: 10,000 cycles  
Consequently, the parts listed above are warranted to be free from defects in materi-  
als and workmanship for a period of thirty days (30) days from the original purchase  
date.  
FOR THE WARRANTY TO BE VALID, PLEASE COMPLETE THE ONLINE  
WARRANTY REGISTRATION FORM FOUND AT  
STANTON MAGNETICS, LLC  
WWW.STANTONMAGNETICS.COM  
© 2003, Stanton Magnetics, LLC  
 
Technical Specifications  
Welcome  
Frequency Response  
THD+N (Line)  
Signal to Noise Ratio  
(ref: max level)  
Noise  
20 Hz to 20 kHz +1 dB  
> 0.005 % at 1 kHz  
Congratulations on your choice of the Stanton RM-22 Professional  
DJ Mixer. You now own one of the most flexible DJ mixers ever  
designed. The rackmountable RM-22 offers up to three Microphone  
inputs, three Phono inputs and nine Line inputs—making it one of  
the most powerful DJ mixers around. And with Stanton’s smooth  
fader movement and rock-solid reliability, it’s the perfect mixer for  
mobile and club DJs alike.  
> 109 dB (main signal path)  
-98 dBV (Line input to any output)  
Crosstalk  
(Line to Line, Phono to  
Line, Line to Phono)  
Fader Kill  
Please take a moment to familiarize yourself with the RM-22 by  
reading through this Owners Manual. (And don’t worry—we’ll make  
it quick so you can start mixing!)  
> -90 dB  
> -90 dB  
Microphone EQ  
Graphic EQ (7 band  
stereo)  
Hi, Low +12 dB  
RM-22 Features  
40 Hz, 80 Hz, 160 Hz, 500 Hz,  
1.6 kHz, 3.2 kHz, 6.4 kHz + 10 dB  
7(RCA) , 1(1/4” Balanced) -10 dBV / >10 kOhm  
2 (RCA), -50 dBV / 47 kOhm  
The RM-22 is an extremely versatile mixer with enough inputs to  
accommodate many DJ setups including multiple turntables, CD  
players and microphones. Below we list some of the RM-22’s most  
salient features (in case you forgot already!):  
Line Inputs  
Phono Inputs  
Phono / CD  
2 (RCA), -50 dBV (Phono) -10 dBV (Line) / 47  
kOhm  
• 19” rackmountable DJ mixer with connections for multiple  
turntables, CD players and microphones  
Mic Inputs  
2 (1/4”), 1 (XLR) -50 dBV / 2.4 kOhm  
2 (1/4”) Balanced/ (RCA) unbalanced,  
+4 dBu balanced / -10 dBV unbalanced  
2 (RCA) unbalanced / -10 dBV  
Master Outputs  
• 4-channel design with assignable crossfader for mixing a variety  
of sources  
Zone Output  
• Individual gain control per channel with clip LED for setting  
optimum levels  
Booth Output  
2 (RCA) unbalanced / -10 dBV  
Record Output  
Headphone Output  
2 (RCA) unbalanced / -10 dBV  
• Easy monitoring via PFL switches and headphone mix with  
Split Cue and Cue Pan functions.  
1 (1/4 inch), 1 (1/8 inch) greater than 32 Ohm load  
• Fader Start buttons for controlling compatible CD players like  
Stanton S-Series  
Dimensions (LxWxD)  
Weight  
18.9 in. x 8.66 in. x 4.72 in. (48 cm. x 22 cm. x 12  
cm.)  
4.5 kg (9.9 lbs)  
• Dual 7-band Master EQ for tweaking mixes to suit different venues  
• Mic inputs 1 and 2 feature 2-band EQ and handy Talkover function  
• Individual outputs and level control for Master, Zone and Booth  
 
Making Connections  
Application Example  
Are you ready to get on the 1’s and 2’s? Let’s make sure you’ve  
made all the right connections…  
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-22:  
1. Be sure all equipment is powered “OFF” and all of the  
RM-22’s Channel faders and Level knobs are at minimum  
volume.  
2. Connect the turntables to the Phono inputs of Channels 1  
and 2. Be sure the rear-panel toggle switch for Channel 2 is set to  
“PH2” or you won’t hear anything. To avoid hum, don’t forget to  
connect the ground wires to the grounding terminals.  
Mic 2  
Here you can connect a microphone using a 1/4-inch cable. If you  
have an XLR-type cable, use the Mic 1 input located on the front  
panel.  
3. Connect the CD players to the Line 4 and 5 inputs of Channels 3  
and 4.  
4. Depending on the type of cable you have, connect your  
microphone to the Mic 1 or Mic 2 input.  
Channel  
This channel offers two Line inputs for connecting CD/MD players, or  
the audio output of a DVD player or VCR. A Phono input is also  
provided for connecting a turntable.  
5. Connect the Master Output jacks to the club’s power amp, EQ or  
crossover. Then connect your monitor amp to the Booth output. If  
you have a separate amp for a particular area of the club, connect  
this amp to the Zone outputs.  
Channel 2/3  
6. Set the Input Selectors on the front panel to the appropriate inputs  
for each channel.  
For each channel, you can connect either two Line inputs or one  
Line input and a turntable, depending on the position of the  
push-switch. These channels also feature a Fader Start function.  
Connect the Fader Start cable (provided with any Fader Start  
equipped CD player) to the remote input on your CD player.  
7. Power everything up and carefully adjust the input levels using the  
Input Gain knobs and Mic Level knob.  
8. If you want to use the crossfader, set Channels 1 and 3 to “A” and  
Channels 2 and 4 to “B”. Otherwise, set them all to “Bypass”.  
Channel 4  
9. If your CD players support Fader Start, connect the mini-cables  
and set the Fader Start switches to “ON”.  
This channel provides connections for three Line inputs or two Line  
inputs and a microphone, depending on the position of the  
push-switch.  
10. Slowly raise the Channel faders, Master fader, Booth level, Zone  
level and Mic level as appropriate and start mixing!  
 
Description of Function  
Making Connections  
16. Input Selector switches: Use these to choose between the  
Outputs  
Phono, Line and Mic inputs.  
Use the REC output to connect a stand-alone CD recorder, DAT  
recorder, or tape deck. Use the BOOTH output to connect directly to  
powered monitors or your monitor amp. The ZONE output can be  
used if you need separate level control for a particular area of your  
club, such as lounge vs. dance floor.  
17. Talkover switch: Switch this to the “ON” position to enable  
Microphones 1 and 2. When moved to the “Talkover” position,  
the music is lowered by a preset amount when the mic is in use.  
18. Mic Level knobs: Use these to adjust the levels for Microphones  
1 and 2. Note that the Talkover switch must be set to “ON” to  
hear the microphones.  
Master  
These outputs are for connecting your main power amp, EQ,  
crossover, etc. Both RCA and 1/4-inch jacks are provided. Using the  
Master Output Trim control, you can adjust the overall level being  
sent from the outputs—great when an additional boost or cut is  
needed.  
19. Microphone EQ knobs: Adjust the Hi and Low frequencies of Mic  
1 and 2 by +/- 12dB.  
20. Mic 1 input: Connect a microphone here using an XLR cable.  
21. EQ On switch: Enables or disables the dual 7-band equalizer.  
Power Adapter Inlet  
22. Equalizer: A dual 7-band EQ for the Master output. Use this to  
“tune” your mix to different venues, or to adjust the overall  
tonality of your mixes.  
Connect the RM-22’s power supply here. Screw to the right, unscrew  
to the left. You knew that, didn’t you?  
Ground Terminals  
23. Output Level meter: Displays the overall signal level of the  
Master output. Can also display levels for the Zone output when  
the Zone Meter switch (2) is enabled.  
Connect the grounding cables from your turntables here to avoid  
hum.  
SUPERIOR SOUND TECHNOLOGY  
The audio quality of the SMX-301 is nothing short of revolutionary for  
DJ mixers in it’s price class. The SMX-301 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 SMX-301, a DJ mixer with  
superior audio quality and unprecedented value.  
Come hear the difference!  
 
Description of Function  
Description of Function  
At this point, you’re pretty much ready to start mixing. So if you’re a  
know-it-all, or you’re just one of those people who like to learn by  
trial-and-error, you are free to throw down. But if you wanna go for  
the gold and get your pilot’s license, take a moment and learn what  
each of the RM-22’s front-panel controls are about.  
6. Headphone outputs: Connect up to two pairs of stereo  
headphones using 1/4-inch and 1/8-inch jacks.  
7. Cue Pan slider: This adjusts the relative headphone balance  
between the Cue mix (PFL) and Master output (PGM).  
22  
8. Fader Start switch: Lets you automatically start a CD player from  
the cue point by moving the crossfader (requires a compatible CD  
player like the Stanton S-Series).  
2
15 16 22 23  
11  
21  
20  
1
9. Crossfader: Creates a gradual fade between two channels, as  
determined by the Crossfader Source selectors (14). Essential for  
scratching and smooth house mixing.  
4
19  
3a  
5
3b  
10. Master fader: Adjusts the overall level of the Master output  
signal.  
14  
13  
12  
18  
8
9
14  
10  
17  
8
7
6
11. Master Stereo/Mono toggle switch: Selects whether the Master  
output will be stereo or summed to mono.  
1. Power switch: Turns the power “On” or “Off”.  
12. PFL switch: Push this to assign the channel to the Cue mix in  
headphones. (Pop quiz: Do you know what “PFL” stands for?  
Answer: “Pre-Fader Level.” In other words, the Channel fader  
does not affect the level you hear in the headphone cue mix.)  
2. Zone Meter switch: Press this when you want the Output Level  
meter (23) to display the Zone output instead of the Master output.  
3a. Zone Level knob: Adjusts the level being sent to the Zone  
outputs (i.e. monitors).  
13. Channel fader: Controls the input channel level.  
3b. Booth Level knob: Adjusts the level being sent to the Booth  
14. Crossfader Source selectors: These select whether the input  
channel is assigned to the left side (A) or right side (B) of the  
crossfader. Select “BYPASS” if you don’t want the channel  
assigned to the crossfader at all.  
outputs (i.e. monitors).  
4. Cue Level knob: Adjusts the cue level being sent to the  
Headphone outputs. Keep this at a reasonable level to avoid  
hearing loss.  
15. Input Gain knobs: Use these to adjust the level of inputs. For  
optimum signal-to-noise, raise the knob until the “max” LED  
lights occasionally. (usually around the 2 o’clock position)  
5. Cue Stereo/ Split toggle switch: Select whether you prefer to  
hear the Cue mix and Master output in stereo, or split with the  
Cue mix on one side and the Master on the other.  
 

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