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MA30 General Description:
The MA30 is equipped with a 30 watt power amplifier with 4W, 8W, 25V, and 70V speaker outputs available at screw
terminals. The unit is powered by 120VAC 60Hz. The main AC input is protected by a circuit breaker on the rear
panel. An unswitched convenience AC outlet is provided on the rear panel that is protected by a separate circuit
breaker. The mixer/amplifier includes 3 input channels. The first channel (marked MIC/TEL on the front panel) is
switchable for microphone or telephone inputs and also includes a switch to select the AUX 2 dual combining RCA-
phono connectors. This channel also includes a TEL/MIC switch. In the TEL (telephone) position, this switch pads
the input to allow the channel to be fed by a 600W balanced line level telephone page port output signal. The first
channel includes a MUTE ON/OFF switch.
telephone input will mute the AUX 1, Aux 3, or Program inputs. The second channel (marked PROGRAM on the
front panel) is switchable for program input screw terminals or AUX 3 dual combining RCA-phono connectors. The
third channel (marked AUX 1 on the front panel) is for the AUX 1 dual combining RCA-phono connectors. The front
panel also includes BASS and TREBLE controls, a power-on LED, and an output level LED indicator.
Getting Started:
Please study carefully the "IMPORTANT SAFETY INSTRUCTIONS" that are given on page 2 before applying power
to your MA30 mixer/amplifier. Those experienced with the use of a mixer/amplifier will find that the input jacks,
output jacks, and controls follow industry standard conventions and will be very intuitive. Standard 4W, 8W, 25V,
and 70V speaker outputs are provided. Those that are not familiar with the speaker wiring required for these
industry standard outputs will find a very helpful section covering this topic on pages 6, 7, and 8 of this "Installation
Sheet and Owner's Manual".
Optional Accessories (sold separately):
Lowell Manufacturing offers the optional 30WK wall kit (used to wall mount the MA30 Mixer/Amplifier), the 30RK
rack kit (used to mount the MA30 Mixer/Amplifier in a 19" rack), the 30HRK half-rack kit (used to mount the MA30
Mixer/Amplifier in a half rack), along with a full line of 19" equipment cabinets, half-rack cabinets, wall mount
shelves, rack mount AC power panels, AC power strips, and cooling fans that can be used to install the Lowell
Amplifier products. See www.lowellmfg.com for product details.
Lowell Manufacturing Company
Call: 800-325-9660
1
When the mute switch is turned ON, a dynamic microphone or
30RK
30WK
100 Integram Drive
Fax: 636-257-6606
1
MA30
INSTALLATION SHEET
AND OPERATORS MANUAL
30HRK
Pacific, Missouri 63069 U.S.A.
Click: www.lowellmfg.com
REMOVABLE
PHOENIX
Instruction Sheet
CONNECTOR
IS-MA30
Issued: 2-8-19
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Summary of Contents for Lowell MA30
- Page 1 MA30 General Description: The MA30 is equipped with a 30 watt power amplifier with 4W, 8W, 25V, and 70V speaker outputs available at screw terminals. The unit is powered by 120VAC 60Hz. The main AC input is protected by a circuit breaker on the rear panel.
- Page 2 Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. CAUTION: Changes or modifications not expressly approved by Lowell Manufacturing will void the manufacturers warranty . REMOVABLE...
- Page 3 8.35" wide x 3.46" high x 10.83"deep (212mm wide x 88mm high x 275mm deep) Weight: MA30: 8.82LBS. (4KGS) Shipping Weight: MA30: 10.0LBS. (4.54KGS) Color: Black Accessories: 30WK (wall mounting kit), 30RK (rack kit), and 30HRK (half-rack kit) are sold separately.
- Page 4 BEFORE TESTING. In this way you can check the basic operation of the amplifier before actually installing the unit and making all of the final terminations required for the permanent installation. If shipping damage has resulted in the amplifier being inoperable out of the box, call Lowell Customer Service to arrange for a replacement . Instruction Sheet...
- Page 5 MOUNTING THE AMPLIFIER This MA30 may be placed on a wooden or metal wall-mount shelf. Do not remove the plastic feet from the bottom of the amplifier chassis. When the amplifier is placed on a countertop or is shelf-mounted, the plastic feet maintain the proper spacing under the amplifier for passive convection cooling.
- Page 6 8 Ohm Series/Parallel Speaker System Wiring Lowell amplifiers include 8W and 4W outputs that can drive basic 8W speakers without the use of any line matching transformers. The impedance of the speaker load must always be equal to or greater than the impedance of the amplifier output.
- Page 7 For example: A Lowell MA60 could be replaced with a Lowell MA125 so that more speakers could be added to the system, with no other changes required to the existing speaker wiring or transformer taps.
- Page 8 Although headroom is always desirable, be assured that the Lowell amplifiers will survive and operate safely when fully loaded. Wiring Size and Length: Cable distance should be kept as short as possible to minimize power loss . The chart below can be used as a general guide showing various wire sizes and the maximum distance related to cable loading that speakers can be placed from the unit for an approximate 0.5dB loss (-12.5% power).
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