Galaxy Audio MSPA5 User Manual

User Guide

HS7 (HOT SPOT 7),

MS5 (MICRO SPOT 5), MSPA5 (POWERED MICRO SPOT 5), PA6S (POWERED HOT SPOT), NSPA (POWERED NANO SPOT)

http://www.galaxyaudio.com/HotSpots.php

TABLE OF CONTENTS

PAGE

IMPORTANT SAFETY INSTRUCTIONS.......................................1

WELCOME................................................................................... 2

BEFORE YOU BEGIN...................................................................2

OHM’S LAW AND THE HOT SPOT............................................3-4

SOUND REINFORCEMENT BASICS...........................................5

HOT SPOT 7(HS7)/MICRO SPOT(MS5)...................................6-7

POWERED SPEAKERS PA6S/PA6SR/NSPA...........................8-11

USING THE PA6S......................................................................8-9

POWERED NANO SPOT........................................................10-11

STAND MOUNTING.....................................................................12

WALL MOUNTING.................................................................13-15

SPECIFICATIONS..................................................................16-17

ACCESSORIES AND REPLACEMENT PARTS...........................18

FOUR RUBBER FEET FOR HOT SPOT.......................................19

WARRANTY................................................................ (Back Cover)

IMPORTANT SAFETY INSTRUCTIONS

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or when unused for long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, 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.

15. Do not expose this apparatus to dripping or splashing and ensure that no objects filled with liquids, such as vases, are placed on the apparatus.

16. To completely disconnect this apparatus from the AC Mains, disconnect the power supply cord plug from the AC receptacle.

17. The mains plug of the power supply cord shall remain readily operable.

The lightning flash with arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage " within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.

WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.

Welcome

Congratulations on your purchase of a Galaxy Audio Product! Backed by over 35 years of proven real-world performance and a 3 year warranty, the product you have selected is one of the finest personal monitoring devices available. Thank you for choosing Galaxy Audio. For full specifications of Galaxy Audio products, visit www.galaxyaudio.com

Fill this out and retain for your records

Model:_ _______________________________________ Serial number:_________________________________ Purchased from:________________________________ Purchase date:_________________________________

To contact Galaxy Audio call 1-800-369-7768 write to P.O. BOX 16285 Wichita, Ks 67216-0285 or visit www.galaxyaudio.com

CAUTION: THESE PRODUCTS ARE CAPABLE OF PRODUCING

SOUND PRESSURE LEVELS WHICH MAY CAUSE PERMANENT

HEARING DAMAGE AFTER PROLONGED EXPOSURE.

BEFORE YOU BEGIN

Before using this product be sure to read and understand all instructions in this manual pertaining to the model(s) you have purchased.

DO...

Use a unidirectional microphone Handle with care Complete the registration card at the back of the manual

Read this manual

DON’T...

Expose any unit covered in this manual to rain or moisture Plug-in or unplug the HOT SPOT while it is operating (doing so may damage your amplifier) (call Galaxy Audio Attempt to make any repairs yourself for repairs). Failure to do so may void your warranty.

OHM’S LAW AND THE HOT SPOT

All unpowered HOT SPOTS and MICRO SPOTS have a 16 ohm impedance, and like most professional-type speakers have jacks which are wired in parallel (meaning the signal can travel into one jack and out of the other).Think of each speaker as a “load” added

to the amplifier. The greater the number of speakers, the heavier the load. Adding too many speakers can overload the amplifier, causing it to overheat and distort. If the amplifier begins to distort, or if it becomes hot to the touch, disconnect any extra speakers. One easy way to determine the load on the amplifier is to use Ohm’s law, which states: “The total impedance of N speakers in parallel is equal to the reciprocal of the sum of the reciprocals. In equation form:

Where Z1 is the impedance (or ohm rating) for the first speaker, Z2 for the second, and so on, for every speaker in the chain. This equation calculates the total impedance of the speaker system, which should NOT be lower than the minimum impedance rating of the amplifier.

“

Z(Total)=

Z Z Z Z Z

EXAMPLE 1:

For one pair of speakers use the short form of the equation: the product of the two speakers divided by the sum of the two speakers is equal to the total impedance or the equivalent impedance of the speaker system.

1 1 1 1 1

___ ___ ___ ___ ___

+ + + +

1 2 3 4 N

Z x Z

1 2

Z + Z

1 2

This equation may be used to calculate the equivalent impedance for additional speakers in two-speaker increments. Determine the impedance of the first two speakers, substitute Z total for Z , and include the next speaker. Repeat the process until all speakers have been included. The result should be the same as with the first method. A word of caution: polarity rules must be observed when connecting multiple speakers. Polarity will not affect the Z, but can

affect the quality and volume of the sound. If you are having problems with any of these applications use Galaxy Audio’s CRICKET Polarity and Continuity Test Set to check the polarity of your cables.

16 x 16

Z= = 8 Ohms for two HOT SPOTS

16 + 16

8 x 16

Z= = 5.33 Ohms for three HOT SPOTS

+ 168

5.33 x 16

Z= = 4 Ohms (the total load)

+ 165.33

EXAMPLE 2:

As long as all of the speakers have the same impedance rating, the equivalent impedance of the system is the rated impedance of one speaker divided by the number of equivalent speakers.

SOUND REINFORCEMENT BASICS

Avoiding feedback

Feedback (the shriek sometimes emitted by PA systems) occurs when the microphone (or pickup) and speaker are positioned too close together for a given level of volume. Once feed back occurs, it will continue until either the volume is decreased or the microphone or speaker is moved. Gain is the degree to which the volume may be turned up before feedback begins. In setting up a sound system, the objective is to maximize gain.

Monitor Placement

HOT SPOT Monitors should be positioned within arm's

reach of the performer. Monitors should be placed to the rear of the microphone being used by the performer.

Avoiding Distortion

Distortion in a monitor system usually occurs when the amplifier is being over-driven, nearing the limits of its power output capability. Over-driving the amplifier may be corrected by reducing the bass frequencies in the monitor mix (low notes use a lot of power). Since the HOT SPOT NEOLITE S5N driver will not reproduce tones lower than 200 Hz, reduce the low frequencies if the speaker begins to distort. Distortion may also originate with a bad signal source.

NEO DRIVER

The NEOLITE S5N, SW6.5 & ST1.5 drivers are state of the art controlled bandwidth speakers that are included in most speakers covered in this manual. The NEOLITE is manufactured with the rare earth element Neodymium that has an extremely intense magnetic field in comparison to its weight. This magnetic field is also very concentrated, allowing the speaker to be placed near sensitive equipment that may be affected by a strong magnetic force, such as a TV or a computer monitor.

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