SM Pro Active-1 User manual

Active Monitor Controller
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Operating Manual
V1.1
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Contents
1 SAFETY INSTRUCTIONS............................................................................................................ 3
2 FOREWARD................................................................................................................................. 4
2.1 Important Notes: .................................................................................................................. 4
3 INTRODUCTION .......................................................................................................................... 5
3.1 Unboxing .............................................................................................................................. 5
4 CONNECTIONS (rear panel) ...................................................................................................... 6
4.1 Mains Power......................................................................................................................... 6
4.2 Sources (Inputs) .................................................................................................................. 6
4.3 Outputs ................................................................................................................................. 7
4.4 Footswitch (TALK BACK CONTROL)................................................................................. 7
4.5 +4/-10DB Switch................................................................................................................... 8
5 FRONT PANEL ............................................................................................................................ 9
5.1 Input Selector....................................................................................................................... 9
5.2 Headphone Amplifiers ........................................................................................................ 9
5.3 Dim ...................................................................................................................................... 10
5.4 Mute .................................................................................................................................... 10
5.5 Mono ................................................................................................................................... 10
5.6 Volume control................................................................................................................... 10
5.7 Talkback ............................................................................................................................. 11
5.8 Monitor Select.................................................................................................................... 11
6 APPLICATION ........................................................................................................................... 12
7 SPECIFICATIONS...................................................................................................................... 13
8 WARRANTY............................................................................................................................... 14
8.1 Warranty Registration ....................................................................................................... 14
8.2 Warranty ............................................................................................................................. 14
8.3 Return Authorization Number .......................................................................................... 14
8.4 Warranty Regulations........................................................................................................ 14
8.5 Claim for Damages ............................................................................................................ 15
8.6 Other Warranty Rights ...................................................................................................... 15
9 FCC and CE Regulation ........................................................................................................... 16
10 CORRESPONDENCE .............................................................................................................. 16

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1SAFETY INSTRUCTIONS
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CAUTION: To reduce the risk of electrical shock, do not remove the cover or rear panel of this unit.
No user serviceable parts inside. Please refer servicing to qualified personnel only.
WARNING: To reduce the risk of fire or electrical shock, do not expose this appliance to rain or
moisture.
DETAILED SAFETY INSTRUCTIONS:
All safety and operation instructions of this manual should be read and adhered to before
operation.
Retain Instructions:
Please retain all safety and operating instructions for future reference.
Follow instructions:
All operation and user instructions should be followed.
Water, liquid and Moisture:
The appliance should not be used near water, rain or other liquids. Make sure that no liquid can
leak, spill or otherwise seep into the appliance.
Ventilation:
Please place the appliance so no obstacles interfere or impede the flow of air through the
ventilation openings.
Heat:
The appliance should be situated away from other heat sources such as heaters, radiators, ovens,
or other appliances that produce heat.
Power Source:
Make sure your appliance is set to the correct voltage for the country in which it will
be use before switching the device ON.
Grounding and Polarization:
Precautions should be taken so that the grounding or polarization means of an appliance is not
defeated.
Power-Cord Protection:
Power supply cords should be routed so that they are not likely to be walked on, pinched,
damaged, worn, or rubbed by any other device or obstacle.
Cleaning:
The appliance should be cleaned only with a light soft cloth. Do not use any damaging
or corrosive products on the unit.
Periods of inactivity:
The power cord of the appliance should be unplugged from the outlet when left unused
for a long period of time or in case a lightning storm occurs.
Damage Requiring Service:
The appliance should be serviced by qualified service personnel when:
• The power supply cord or the plug has been damaged; or
• Objects have fallen, or liquid has been spilled into the appliance; or
• The appliance has been exposed to rain; or
• The appliance does not appear to operate normally or exhibits a marked change in
performance; or
• The appliance has been dropped, or the enclosure damaged.
Servicing:
The user should not attempt to service the appliance beyond that is described in the Operating
Instructions.
All other servicing should be referred to qualified service personnel.! !

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2FOREWARD
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Dear Customer,
Thank you for purchasing this SM Pro Audio product. The ACTIVE-1 is designed to be a
comprehensive studio monitor controller for home, project and professional studios, sound
equipment rental companies, repair centers, schools and fixed installations — in short, virtually any
and all venues where audio products are used.
Drawing on years of hands-on experience in the audio industry and valuable suggestions from our
customers, our engineers have developed a product that we are certain will more than meet your
expectations. As with all SM Pro Audio equipment, the ACTIVE-1 was designed to provide you with
superb performance, excellent technical specifications, and uncompromising audio quality at an
extremely affordable price.
We hope you enjoy making music with SM Pro Audio!
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2.1 Important Notes:
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Every effort has been made to ensure all information provided in this manual is accurate at the
time of writing.
SM Pro Audio is not liable for any incorrect information contained in this manual and extends no
liabilities in regard to this manual other than those required by local law.
SM Pro Audio may update the contents of this manual at any time without prior notice. The latest
version of this manual is available from the SM Pro Audio website at all times.
http://www.smproaudio.com!
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08!
Fall$

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3INTRODUCTION
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Designed to provide the lowest noise operation possible in an active monitor controller, the
ACTIVE-1 is ideal for applications where both signal attenuation and boost is needed.
Building on the feature set of the PASSIVE-1, the ACTIVE-1 also includes LED level-metering and
convenient switch selectable +4dBu/-10dBV input stage operation. The ACTIVE-1 is automatically
recognized by the host computer as a USB device for easy DAW recording and playback via the
on-board USB I/O.
It allows you to connect multiple input signals, route them to various destinations, and control their
levels. The ACTIVE-1 is an ideal centerpiece for monitor control in home, professional, and project
studio applications.
3.1 Unboxing
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Your SM Pro Audio ACTIVE-1 was carefully packed in the factory and the packaging was designed
to protect the unit from rough handling. Nevertheless, we recommend that you carefully examine
the packaging and its contents for any signs of physical damage, which may have occurred in
transit.
If the unit is damaged, please do not return it to us, but notify your dealer and the shipping
company immediately, otherwise claims for damage or replacement may not be granted. Shipping
claims must be made by the consignee.
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4CONNECTIONS (rear panel)
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4.1 Mains Power
The ACTIVE-1 includes a 9V mains power supply. The power LED on the front
panel (to the left of the volume knob) will illuminate when the external power
supply is connected and mains power is present. Please ensure the correct
power supply is used with the ACTIVE1 and that the power rating on the
provided power supply suites your AC power outlet. Please make sure your
Mains voltage is compatible with the provided adaptor.
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4.2 Sources (Inputs)
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Sources is the description of the 4 INPUT connectors.
•Source A is the stereo RCA inputs
•Sources B and C are the 6.5mm or ¼inch stereo input jacks
•Source D is the USB input. The USB input has a built in Legacy compatible driver for simple
plug & play operation. The USB input does not need mains power to operate. An ASIO
driver is also available for download from our website.
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4.3 Outputs
Outputs is the description of the 4 output connectors. They are line level signal for plugging in your
active studio monitors or to the inputs of a power amplifier that is driving your passive monitors.
•Outputs A and B are stereo 6.5mm or ¼inch jacks
•Output 2T (2 Track) is the 6.5mm stereo output that includes the talkback signal
•Source D is the USB output with Legacy driver built in. USB does not need mains power to
operate. USB output always records what is selected on the MAIN SOURCE input.!
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4.4 Footswitch (TALK BACK CONTROL)
Plug a 6.5mm or ¼inch jack footswitch into this socket. Pressing the footswitch initiates hands-
free activation of the talkback feature.
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4.5 +4/-10DB Switch
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The selector switch in the bottom right rear corner changes the output level compatibility

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5FRONT PANEL
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5.1 Input Selector
The ACTIVE1’s input selector chooses the input signal you wish to monitor.
5.2 Headphone Amplifiers
There are two independent headphone amplifiers provided on the ACTIVE-1.
Each with their own volume control.

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5.3 Dim
Activate this switch to decrease the listening level of the outputs by 20db. This is helpful to allow
discussion in the studio without having to change the position of the volume knob.
5.4 Mute
Activate this switch to mute the signal from the outputs.
5.5 Mono
Activate this switch to listen to the audio outputs in monophonic mode. This combines the stereo
audio signal into a monophonic signal, which helps to check for any phase cancellation issues in
the stereo signal.
5.6 Volume control
As it is an ACTIVE device, the ACTIVE-1’s Volume control, controls an electronic circuit, which in
turn adjusts the level of the audio going through the device.

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5.7 Talkback
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A built-in talkback microphone, automatically ducks the Control Room outputs by 20dB when
engaged, The talkback mic can be sent to the headphones or to the 2TRACK output.
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5.8 Monitor Select
The monitor select switches activate the output to the A & B outputs respectively. Both can be
selected simultaneously.
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6APPLICATION
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Connecting Active speakers directly to the output of the ACTIVE-1 Monitor Controller.
When connecting PASSIVE speakers, you must first connect the output of the ACTIVE-1
to your amplifier and then connect the amplifier to the speakers.
Do not connect the OUTPUT of an amplifier to the ACTIVE-1 controllers INPUT!!

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7SPECIFICATIONS
Frequncy Response:
Line Level Inputs and Outputs +0.5 - -1dB 10hz to 30kHz
Noise:
Monitor A B, Studio Outputs, 2-Track -92dBu Typical
Outputs:
Line Level outputs (-10dB setting) -10dBu/+8dBu (NOM/MAX)
Line Level outputs (+4dB setting) +4dBu/+22dBu (NOM/MAX)
Dynamic Range:
Line Inputs to outputs 114dB minimum
Crosstalk:
Mute/Level OFF 92dB @1kHz
Volume Control range:
Dim Switch -20dB
Master Volume studio output gain 34dB max
USB:
Channels 2
Drivers Legacy type and ASIO
Compatibility All current USB Audio systems
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8WARRANTY
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8.1 Warranty Registration
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To be protected by this warranty, please register your purchase using our online registration form
at http://www.smproaudio.com/index.php/en/service/register
8.2 Warranty
SM ProAudio warrants the mechanical and electronic components of this product to be free of
defects in material and workmanship for a period of three (3) years from the original date of
purchase, in accordance with the warranty regulations described below. If any defects occur within
the specified warranty period that are not caused by normal wear or inappropriate use, SM Pro
Audio shall, at its sole discretion, either repair or replace the product through its local distributor.
Warranty claims other than those indicated above are expressly excluded.
8.3 Return Authorization Number
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To obtain warranty service, the buyer must: a. return the product to its place of purchase, or b.
contact your local distributor, or c. email [e-mail] BEFORE returning the product.
All warranty requests must be accompanied by a description of the problem and an original
purchase receipt. If you have previously registered your purchase (via the SM Pro Audio web site),
you will then be issued with a return authorization number. If you have not previously registered
your purchase, then you must forward a proof of purchase document (retail dealers invoice) before
a return authorisation can be provided.
The product must then be returned in its original shipping carton, together with the return
authorization number.
8.4 Warranty Regulations
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Any product deemed eligible for repair or replacement by SM Pro Audio under the terms of this
warranty will be repaired or replaced in the best possible manner.
If the product needs to be modified or adapted in order to comply with applicable technical or
safety standards on a national or local level, in any country which is not the country for which the
product was originally developed and manufactured, this modification/adaptation shall not be
considered a defect in materials or workmanship.
The warranty does not cover any such modification/adaptation, irrespective of whether it was
carried out properly or not. Under the terms of this warranty, SM Pro Audio shall not be held
responsible for any cost resulting from such a modification/adaptation.
Free inspections, maintenance/repair work and replacement of parts are expressly excluded from
this warranty, in particular if caused by inappropriate use. Likewise, the warranty does not cover
defects of expendable parts caused by normal wear of the product. Expendable parts are typically
pots, potentiometers, switches and similar components.
Damages/defects caused by the following conditions are not covered by this warranty:
Misuse, neglect or failure to operate the unit in compliance with the instructions given in the user or
service manuals.

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Connection or operation of the unit in any way that does not comply with the technical or safety
regulations applicable in the country where the product is used.
Damages/defects that are caused by any other condition beyond the control of SM Pro Audio.
Any repair carried out by unauthorized personnel will void the warranty.
Products which do not meet the terms of this warranty will be repaired exclusively at the buyer‘s
expense. SM Pro Audio will inform the buyer of any such circumstance. If the buyer fails to submit
a written repair order within 4 weeks after notification, SM Pro Audio will return the unit C.O.D. with
a separate invoice for freight and packing. Such cost will also be invoiced separately when the
buyer has sent in a written repair order.
8.5 Claim for Damages
Failure of SM Pro Audio to provide proper warranty service shall not entitle the buyer to claim
(consequential) damages. In no event shall the liability of SM Pro Audio exceed the invoiced value
of the product.
8.6 Other Warranty Rights
This warranty does not exclude or limit the buyer‘s statutory rights provided by national law, in
particular, any such rights against the seller that arise from a legally effective purchase contract.

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9FCC and CE Regulation
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
Caution: Any changes or modifications in construction of this device with are not expressly
approved by the party responsible for compliance, could void the user's authority to operate
equipment.
Note: This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to
radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his/her own
expense. If necessary, consult an experienced radio/television technician for additional
suggestions.
10 CORRESPONDENCE
For technical support, warranty claims, and all other enquiries, please contact your local SM Pro
Audio distributor.
Contact details of all SM Pro Audio distributors can be found online at
http://www.smproaudio.com/!
The information contained in this manual is subject to change without notice. No part of this
manual may be reproduced or transmitted in any form or by any means, electronic or mechanical,
including photocopying and recording of any kind, for any purpose, without the express written
permission of SM Pro Audio.
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ALL RIGHTS RESERVED © 2014 SM Pro Audio