M-Patch 2.
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 Pro Audio products by purchasing this unit. The M-Patch 2.1 was designed to be a comprehensive “workhorse” test device for home, project and professional studios, live sound rental companies, repair centers, schools and fixed installations- in short, virtually any and all venues where audio products are used.
The M-Patch 2.1 is a multi-channel stereo attenuator using passive circuitry designed for users wishing to work without outboard mixers or bit-degrading digital volume attenuators. The M-Patch 2.1 provides stereo level control solutions for any monitor or distributed sound application. Featuring two rotary controls for precise two x stereo channel level adjustments, and housed in a desktop or rack-mountable sized chassis, the M-Patch 2.1 main volume controller is designed from discrete 0.
* Note: The M-Patch 2.1 accepts mic or line level input signals. Do notconnect your power amplifier outputs to the M-Patch 2 inputs! 3.2.1 Balanced inputs The balanced main inputs feature XLR bal/unbalanced combo connectors for L&R input signal. This input is perfect for connection to your main audio interface devices. Simply connect your cables directly to the unit with either XLR or ¼” TS/TRS cables. You are then able to select between these 2 Balanced inputs and attenuate their input signal. 3.2.
Connect these outputs to your destination device (active monitors, digital recorder, or wherever you need the attenuated output signal sent). * Note: It is possible to activate or deactivate each desired output pair via the output selector switches‘ on the front panel. It is possible to have both master 1 & master 2 outputs active at the same time.
4.2 Headphone amplifier A headphone amplifier is provided for monitoring the audio signal selected by the ‚Input Selection‘ control switches. Simply connect a pair of headphones to the ¼” TRS headphone connector socket and use the rotary headphone volume control knob to adjust the volume level to your desired setting. * Note: Use of the headphone amplifier requires the connection of the external power supply. 4.3 Output selector switches 2.0LR/2.1 selector: When the M-Patch 2.1 is used as per the 2.
5. APPLICATION Using the M-Patch 2.1 You can use M-Patch 2.1 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 potentiometers and master attenuator switch, the M-Patch 2.1 passes signal more accurately, and sounds better than most built-in volume controls. Another use might be to trim the levels of a 5.
6. SPECIFICATIONS AUDIO INPUTS Connectors 4 x XLR Combo connectors 2 x stereo RCA pair (L&R) 2 x stereo 3.5mm jack AUDIO OUTPUTS Output Connectors 3 x XLR output pairs 1 x XLR mono subwoofer output HEADPHONE OUTPUT Output Connectors Frequency response Maximum output level 1 x 14” TRS stereo output 20Hz20Hz +/- 0.5dB 320mW into 32Ω POWER External DC12-16V adaptor *Note: Power is only required to operate the headphone amplifier and illuminate the units led indicators.
7. Warranty 7.1 Warranty Card To be protected by this warranty, the buyer must complete and return the enclosed warranty card (signed/stamped by retail dealer) within 14 days of the date of purchase to SM Pro Audio (see address below 3). Failure to return the card in due time (date as per postmark) will void any extended warranty claims. 7.2 Warranty 7.2.1.
7.4 Warranty Regulations 7.4.1. 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. 7.4.2.
ALL RIGHTS RESERVED © 2012 SM Pro Audio All illustrations, descriptions and technical specifications are subject to change without prior notice. SM Pro Audio Service Department W25, 26-28 Roberna St Moorabbin Melbourne, Victoria Australia 3189 www.smproaudio.
