BOGEN MT300M Audio Distribution Transformer User Guide
- June 4, 2024
- BOGEN
Table of Contents
BOGEN MT300M Audio Distribution Transformer
WARNING: To reduce the risk of fire or electric shock, do not expose this
apparatus to rain or moisture.
The apparatus shall not be exposed to dripping or splashing and that no
objects filled with liquids, such as vases, shall be placed on apparatus.
CAUTION: DO NOT INSTALL OR PLACE THIS UNIT IN A BOOK CASE, BUILT-IN CABINET, OR IN ANOTHER CONFINED SPACE. ENSURE THAT THE UNIT IS WELL VENTILATED. TO PREVENT THE RISK OF SHOCK OR FIRE HAZARD DUE TO OVER HEATING. ENSURE THAT CURTAINS AND ANY OTHER MATERIALS DO NOT OBSTRUCT THE VENTILATION VENTS.
Always comply with the following basic safety precautions when installing and using the unit:
- Read these instructions.
- Keep these instructions.
- Heed all warnings.
- Follow all instructions.
- DO NOT use this apparatus near water.
- Clean only with dry cloth.
- DO NOT block any ventilation openings. Install in accordance with the manufacturer’s instructions.
- DO NOT install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Operating temperature range of 0 °C to 40 °C.
- For indoor use only.
- Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
- This equipment is to be used and/or operated by instructed persons only.
This equipment is not suitable for use in locations where children are likely to be present. Equipment is intended for use only in a restricted access area.
Minimum distance of 10 cm around the apparatus for sufficient ventilation.
- 10cm distance minimale autour de l’appareil pour une aération suff-isante
- The ventilation should not be impeded by covering the ventilation openings with items, such as newspapers, table-cloths, curtains, etc.
- Only use the apparatus in moderate climates.
MT300M
The MT300M Distributed Transformer is designed to be used with Bogen Platinum amplifiers up to PS240, Nyquist PA Series amplifiers up to PA240, and Nyquist A series amplifiers up to A240 to drive high-impedance distributed loudspeaker systems.
Output Connections
To drive distributed speaker systems designed to operate at 25V or 70V, connect your distributed loudspeaker system to the output of the MT300M transformer module. Connect output wiring using the Phoenix input. Maintain proper polarity (+/COM) on output connector. Either 25V or 70V can be selected (not both), depending on the distributed system. The MT300M is rated at a maximum of 250W RMS at 25V or 70V.
Input Connections
Connect your power amplifier output to the MT300M transformer input using the
Phoenix connector, observing proper polarity (+/COM) on input connector.
Use of a high-pass filter (aka a low-cut filter) set at a minimum of 50 Hz is
necessary when using the MT300M transformer module to drive a 25V or 70V
distributed loudspeaker system to prevent distortion due to trans-former
saturation. The input and output connections are shown in Figure 1.
Mounting the MT300M
To mount an MT300M transformer module in your rack system or to a wall mount, refer to Figure 2 or Figure 3 and use the provided rack mount kit. The mounting height should be equal to or less than two meters. The mounting process should be conducted by trained professionals with sufficient knowledge and tools to fit the wall-mount fasteners in a reliable way.
Specifications
- Power Rating: Maximum 250 W
- Input Voltage: 44.7 Vrms max.
- Input Current: 5.59 Arms max.
- Output Tap 1 Voltage: 70.7 Vrms
- Output Tap 1 Current: 3.54 Arms
- Output Tap 2 Voltage: 25 Vrms
- Output Tap 2 Current: 10 Arms
- Frequency Response: 50 to 15 kHz +0/−3 dB
- THD: 0.02% 50 W 50–20 kHz
- Size: 5.5″ x 6.5″ x 3.5″
- Weight: 5.4 lbs
NOTICE
Every effort was made to ensure that the information in this manual was
complete and accurate at the time of printing; however, all information is
subject to change.
Limited Warranty, Exclusion of Certain Damages
The MTM300 is warranted to be free from defects in materials and workmanship for five (5) years from the date of sale to the original purchaser. Any part of the product covered by this warranty that, with normal installation and use, becomes defective (as confirmed by Bogen upon inspection) during the warranty period will be repaired or replaced by Bogen, at Bogen’s option, with new or refurbished product, provided the product is shipped insured and prepaid to: Bogen Factory Service Department: 4570 Shelby Air Drive, Suite 11, Memphis, TN 38118, USA. Repaired or replacement product(s) will be returned to you freight prepaid. This warranty does not extend to any of our prod-ucts that have been subjected to abuse, misuse, improper storage, neglect, accident, improper installation or have been modified or repaired or altered in any manner whatsoever, or where the serial number or date code has been removed or defaced.
THE FOREGOING LIMITED WARRANTY IS BOGEN’S SOLE AND EXCLUSIVE WARRANTY AND THE PURCHASER’S SOLE AND EXCLUSIVE REMEDY. BOGEN MAKES NO OTHER WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED AND EXCLUDED TO THE MAXIMUM EXTENT ALLOWABLE BY LAW. Bogen’s liability arising out of the manufacture, sale or supplying of products or their use or disposition, whether based upon warranty, contract, tort or otherwise, shall be limited to the price of the product. IN NO EVENT SHALL BOGEN BE LIABLE FOR SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, LOSS OF PROFITS, LOSS OF DATA OR LOSS OF USE DAMAGES) ARISING OUT OF THE MANUFACTURE, SALE OR SUPPLYING OF PRODUCTS, EVEN IF BOGEN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES OR LOSSES.
Some States do not allow the exclusion or limitation of incidental or
consequential damages, so the above limitation or exclusion may not apply to
you. This warranty gives you specific legal rights, and you may also have
other rights which vary from State to State.
Products that are out of warranty will also be repaired by Bogen Factory
Service Department — same address as above or call
201-934-8500, at owner’s expense.
Returned products which do not qualify for warranty service, may be repaired
or replaced at Bogen’s option with a previously repaired or refurbished items.
The parts and labor in-volved in these repairs are warranted for 90 days when
repaired by the Bogen Factory Service Department. All parts and labor charges
as well as shipping charges will be at the owner’s expense.
All returns require a Return Authorization number. For most efficient warranty
or repair service, please include a description of the failure.
www.bogen.com
References
Read User Manual Online (PDF format)
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