M-Patch V2 Operating Manual August 2012
SAFETY INSTRUCTIONS 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.
FOREWORD Dear Customer, Thank you very much for expressing your confidence in SM ProAudio products by purchasing this unit. The M-Patch V2 has been designed to be used as a standard tool for home/pro studios, P.A. rental companies, Schools and in many other situations where audio products would be used. With much experience in the audio industry over a long period of time, and along with valuable suggestions from our customers, our engineers have developed a product we know you will be satisfied with.
M-Patch V2 Main Features Professional, multi-purpose passive volume attenuator with built in headphone amplifier. • • • • • • • • • • • • High quality ‚passive volume‘ attenuator 2 position switch with 0.1% resistors for increased accuracy across all attenuation levels Great monitor switching device 2 x Input channels, 2 x Output channels Combo, RCA, & 3.
3. Installation Your SM Pro Audio M-Patch V2 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.
4.2 Aux Inputs The Aux input channel features two different connection possibilities in the form of 2 x RCA (L&R) and a stereo 3.5mm mini-jack input. These connections are perfect for devices such as a CD players line output or a 3.5mm stereo mini-jack connection from your PC‘s standard soundcard. * Note: You can connect up to three different devices to the three physical connector possibilities simultaneously. The input selector on the front panel allows selection of the desired input! 4.
4.4 Power Connection Power to the M-Patch V2 is required only if you wish to use the headphone amplifier, or view the illuminated led indicator lamps. The included power supply can be connected from mains power to the power connector socket located on the rear panel of the M-Patch V2. The Blue led on the front panel (next to the mono/stereo control switch) will illuminate when the external power supply is connected and mains power is present.
5.4 Stereo Volume Control The M-Patch V2 includes 2 master balanced stereo attenuator. The pre installed attenuator is a unique volume controller specifically designed for the M-Patch range, it is a 12 position switched attenuator with thin film resistors (high accuracy of 0.1%). The positions have 470ohm resistors to keep impedance to the lowest level we could in a passive system.
5.5 On/Off Mute Switch The on/off mute switch on the front panel is for enabling and disabling the M-Patch V2‘s built in mute function. All audio signal output is disabled when the mute switch is in a depressed position. The mute led will illuminate when the system is in a current muted state of operation. 5.6 Mono/Stereo Summing Switch The mono/stereo summing switch on the front panel of the M-Patch V2 allows you to sum a stereo signal to a mono signal.
6. APPLICATION 6.1 Using the M-Patch V2 You can use M-Patch V2 anywhere you want to trim the amount of gain; ie, reduce the volume of analog audio signals. For example, you could use one to trim the output of a microphone pre-amplifier. With its high-quality potentiometer, the M-Patch V2 passes signal more accurately, and sounds better than most built-in volume controls. Another use might be to trim the levels of a 5.
7. SPECIFICATIONS AUDIO INPUTS Connectors AUDIO OUTPUTS Output Connectors HEADPHONE OUTPUT Output Connectors Frequency response Maximum output level POWER External PHYSICAL Dimensions Net weight • 2 x XLR Combo connectors • 1 x stereo RCA pair (L&R) • 1 x stereo 3.5mm jack • 2 x XLR output pairs (A-/L&R, B-/L&R) • 1 x 1/4” TRS stereo output • 20Hz - 20Hz +/- 0.5dB • 320mW into 32Ω • DC12-16V adaptor • 22cm x 12cm x 8.6 cm • approx. 1 kg 8. Warranty 8.
8.4 Warranty Regulations 8.4.1. Warranty services will be furnished only if the product is accompanied by an original retail dealer‘s invoice. 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. 8.4.2.
