2 foreward, Fall – SM Pro Audio M-Patch Passive-1: Precision Monitor Control Plus Studio Talkback and USB Audio I/O User Manual
Page 4

SM Pro Audio
Page 4 of 15
PASSIVE-1 manual
2 FOREWARD
Dear Customer,
Thank you for purchasing this SM Pro Audio product. The PASSIVE-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 PASSIVE-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! 
2.1
Important Notes:
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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Fall
