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5

Owner’s Manual

Owner’

s Manual

Quick Start

We realize that you can’t wait to hook up your  

MR10Smk3 Studio Subwoofer and try it out.  
Nevertheless, please take the time to read this page 
NOW, and the rest can wait until you’re good and ready.

1.  Turn the input level [9] control on the back of the 

cabinet down (fully counterclockwise) before turning 
on the subwoofer for the first time.

2.  Set the power switch [3] on the back panel off. This will 

prevent you from accidentally connecting a hot signal 
source to the subwoofer and getting a rude surprise.

3.  Connect the L/R line-level signal from your mixer,  

interface, or other signal source to the input [4] jacks 
on the MR10Smk3 Studio Subwoofer (XLR or 1⁄4").

4.  Connect the line-level signal from the output [5] jacks 

on the MR10Smk3 Studio Subwoofer (1⁄4") to the studio 
monitors’ input jacks.

5.  Connect the supplied AC power cord to the IEC socket 

[1] on the back of the subwoofer. Plug the other end 
into an AC outlet properly configured with the voltage  
corresponding to the markings next to the IEC socket.

6.  Start your signal source (8-track player, turntable,  

CD player, DAW, or whatever), but leave the master 
volume control on the mixer or preamp down. 

7.  Turn on the power switch [3] on the MR10Smk3. 

8.  Slowly turn up the input level [9] control on the  

back of the subwoofer to center position (12 o’clock, 
aka unity gain).

9.  Adjust the master volume on the mixer or preamp  

to a comfortably loud listening level.

10. Balance the subwoofer to your desired low-frequency 

output level and adjust the crossover [8] to your  
desired setting.

Enjoy the authoritative, commanding lows of the 

MR10Smk3. Then read the rest of this manual.

An Extremely Important Note 

on MR10Smk3 Bass Response 

and Your Control Room

MR10Smk3s achieve the best bass  response in 
a room that’s optimized for bass  reproduction. 
A lot of factors can conspire to thwart the 

MR10Smk3s’ extended low frequency – including room 
shape, room volume and  acoustical treatment. 

This is not a cop-out or an apology. It’s plain old 

physics in action. Luckily we’ve armed you with some 
compensating controls that you can use to optimize the 
frequency response of the speakers in your particular 
room. Consider the following:

When you put your MR10Smk3s in a corner or  

up against walls, their bass characteristics change.  
The apparent loudness of the low frequencies increases 
when the subwoofers are placed close to a wall, and 
even more so when they are placed in a corner.

Additional Tidbits of Wisdom

•  Never listen to loud music for prolonged periods. 

 

Please see the Safety Instructions on page 2 for  
information on hearing protection.

•  

When you shut down your equipment, turn off the 
MR10Smk3 studio subwoofers first to prevent thumps and  
other noises generated by any upstream equipment from 
coming out the speakers. When powering up, turn on  
the subwoofers last.

•   Save the shipping box! You may need it someday.

•  Save your sales receipt in a safe place. It’s your    

warranty!

Summary of Contents for MR10SMK3

Page 1: ...OWNER S MANUAL Powered Studio Subwoofer MR10Smk3 ...

Page 2: ...found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equip ment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communic...

Page 3: ...imum studio performance Like us Follow us Watch our dang videos Please write your serial number here for future reference i e insurance claims tech support return authorization make dad proud etc Purchased at Date of purchase IMPORTANT SAFETY INSTRUCTIONS 2 CONTENTS FEATURES 3 INTRODUCTION 4 QUICK START 5 REAR PANEL DESCRIPTION 6 1 POWER CONNECTION AND FUSE 6 2 VOLTAGE SELECTOR SWITCH 6 3 POWER SW...

Page 4: ... performance The low profile enclosure is rear ported to provide smooth even bass that adds to the character of your music and also features vibration absorbing rubber feet to minimize unwanted resonances Optimizing features include an adjustable crossover to dial in the right amount of low end for your studio plus a polarity switch to make sure your mix is always in phase Adding an MR10Smk3 studi...

Page 5: ...er volume on the mixer or preamp to a comfortably loud listening level 10 Balance the subwoofer to your desired low frequency output level and adjust the crossover 8 to your desired setting Enjoy the authoritative commanding lows of the MR10Smk3 Then read the rest of this manual An Extremely Important Note on MR10Smk3 Bass Response and Your Control Room MR10Smk3s achieve the best bass response in ...

Page 6: ...onse of the speakers to match the subwoofer s location and the room s environment 1 Power Connection and Fuse Connect the power cord to this IEC socket securely and plug the other end into a live AC outlet Make sure the AC outlet has the correct voltage indicated below the IEC socket Disconnecting the plug s ground pin is dangerous Don t do it The fuse is located behind the fuse cover at the botto...

Page 7: ... the low frequency response of the speaker The size of the port is carefully designed with respect to the volume of the cabinet and the characteristics of the woofer to produce low frequency extension 5 Signal Outputs Connect these output jacks to the input jacks of studio monitors Balanced 1 4 female connectors are provided for the left and right outputs The frequency range depends on where the c...

Page 8: ...ry cloth to clean the cabinets Only do this when the power is turned off Protection Circuits There are several protection mechanisms designed into the MR10Smk3 studio subwoofers to safeguard the speakers and amplifiers from inadvertent damage CAUTION The protection circuits are designed to prevent damage to the speakers under reasonable and sensible conditions Should you choose to ignore the warni...

Page 9: ... that we perceive as sound When the polarity switch 7 is to the right the original waveform is simply reversed 180 see Figure 2 Again the subwoofer cone follows the waveform However this time the woofer cone starts by pulling into the cabinet followed by the woofer cone pushing out If you have ever experimented with a subwoofer polarity switch you may not have noticed any changes to the sound rega...

Page 10: ...s These sources usually produce hum Is there a light dimmer or other triac based device on the same AC circuit as the subwoofer Dimmers cause buzzing noises Use an AC line filter or plug the subwoofer into a different AC circuit Excessive hiss is an indication of an incorrect gain setting somewhere before the speaker If possible listen to the signal source with headphones plugged in If it sounds n...

Page 11: ...ained through local dealers or distributors If you do not have access to our website please call our Tech Support department at 1 800 898 3211 normal business hours Pacific Time to explain the problem They will tell you where the nearest factory authorized service center is located in your area Need help with your MR10Smk3 Studio Subwoofer Visit www 720trees com and click Support to find FAQs manu...

Page 12: ...e or cold 2 3 1 SHIELD COLD HOT SHIELD COLD HOT 3 2 1 Balanced XLR Connectors Balanced1 4 TRSInputConnector TRS stands for Tip Ring Sleeve the three connections available on a stereo 1 4 or balanced phone jack or plug TRS jacks and plugs are used to make balanced connections to the MR10Smk3 studio subwoofers 1 4 TRS Balanced Wiring Tip Positive or hot Ring Negative or cold Sleeve Shield Ground SLE...

Page 13: ... our products by incorporating new and improved materials components and manufacturing methods Therefore we reserve the right to change these specifications at any time without notice The following are trademarks or registered trademarks of LOUD Technologies Inc MR Series and the Running Man This manual also contains names and marks of other companies which belong to those respective companies and...

Page 14: ...XLR BALANCED LINE INPUTS 1 4 BALANCED LINE INPUTS 1 4 BALANCED LINE OUTPUTS INPUT LEVEL VARIABLE LP 40 HZ 180 HZ R L LO FREQUENCY DRIVER LO FREQUENCY POWER AMPLIFIER WOOFER HI VDC LO VDC TOROIDAL POWER TRANSFORMER FUSE POWER HI VDC HI VDC 40 180 0 180 POLARITY INVERT 12 DB OCT BUTTERWORTH 40 HZ OVEREXCURSION PROTECT ...

Page 15: ...d sales receipt as evidence of the date of purchase You will need it to obtain any warranty service For full terms and conditions as well as the specific duration of the Warranty for this product please visit www 720trees com The Product Warranty together with your invoice or receipt and the terms and conditions located at www 720trees com constitutes the entire agreement and supersedes any and al...

Page 16: ...16220 Wood Red Road NE Woodinville WA 98072 USA Phone 425 487 4333 Toll free 800 898 3211 Fax 425 487 4337 www 720trees com ...

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