Samson DB500 Manuel utilisateur

AUDIO

500

SOUND REINFORCEMENT

500 Watt 2-way Loudspeaker

dB500

Safety Instructions

WARNING

DO NOT EXPOSE THIS EQUIPMENT

TO RAIN OR MOISTURE

AVIS

RISQUE DE CHOC ELECTRONIQUE

NE PAS OUVRIR

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION

FOR CONTINUED PROTECTION AGAINST RISK

OF FIRE, REPLACE ONLY WITH SAME TYPE FUSE

ATTENTION

UTILISER UN FUSIBLE DE

RECHANGE DE MÊME TYPE

Caution: To reduce the hazard of electrical shock, do not

remove cover or back.

No user serviceable parts inside. Please refer all servicing

to qualified personnel.

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

The lightning flash with an arrowhead symbol within an equilateral triangle, is intended to alert the user to the

presence of uninsulated "dangerous voltage" within the products 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 oper-

ating and maintenance (servicing) instructions in the literature accompanying the product.

Important Safety Instructions

1. Please read all instructions before operating the unit.

2. Keep these instructions for future reference.

3. Please heed all safety warnings.

4. Follow manufacturers instructions.

5. Do not use this unit near water or moisture.

6. Clean only with a damp cloth.

7. Do not block any of the ventilation openings. Install in accordance with the manufacturers 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 third prong is provided for your safety. When the provided plug does not fit

your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on and pinched particularly at plugs, convenience recepta-

cles and at the point at which they exit from the unit.

11. Unplug this unit during lightning storms or when unused for long periods of time.

12. Refer all servicing to qualified personnel. Servicing is required when the unit has been damaged in any

way, such as power supply cord or plug damage, or if liquid has been spilled or objects have fallen into

the unit, the unit has been exposed to rain or moisture, does not operate normally, or has been

dropped.

Table of Contents

Introduction 2

dB500Features 3

dB500 Components 4

Quick Set-Up 5

Controls and Functions

Positioning the dB500 6

Setting up your dB500 7-9

dB500 Wiring Guide 10

Specifications 11

Printed June, 2002

Samson Technologies Corp.

575 Underhill Blvd.

P.O. Box 9031

Syosset, NY 11791-9031

Phone: 1-800-3-SAMSON (1-800-372-6766)

Fax: 516-364-3888

www.samsontech.com

Congratulations on purchasing the Samson dB500! The dB500 speaker system by Samson takes the concept of

PA systems to a new level. By combining 500 watts of power handling, advanced crossover design and the high-

est quality speaker and cabinet components, the dB500 provides studio quality sound for any kind of live applica-

tion. The monitor features a super heavy-duty, custom designed, 15" Celestion® low frequency driver and a 1.75

inch (44 millimeter) titanium diaphragm high frequency driver on a 1" throat, wide dispersion horn. The dB500

offers crystal-clear audio and an ultra-wide sound field. The top end is clean, smooth and vivid. Not only a front-

firing PA speaker, the dB500’s are also designed to operate as wedge-style monitors. The cabinet’s right and left

side panels are joined at different angles, so depending on the side you choose, you get a different dispersion

angle, allowing for greater flexibility on stage. Adding to the dB500’s practical design is a catalog of mounting

options. The compact cabinet can be easily stacked, permanently installed, mounted using the integral 1 3/8"

pole mount receptacle or suspended using the ten built-in fly points. With the dB500, setup and break down is

quick and easy. Heavy-grade steel grills, scuff-resistant textured finishes and rigid corners offer excellent protec-

tion against wear and tear. As fixed sound reinforcement or as a durable, great-sounding road PA, the dB500

monitor is ideal for sound professionals and performers looking for serious output and studio monitor sound quali-

ty from a PA speaker system.

In these pages, you’ll find a detailed description of the features of the dB500 PA system, as well as a description

of its front and rear panels, step-by-step instructions for its setup and use, and full specifications. You’ll also find a

warranty card enclosed—please don’t forget to fill it out and mail it in so that you can receive online technical sup-

port and so we can send you updated information about these and other Samson products in the future.

With proper care your dB500 will operate trouble free for many years. We recommend you record your serial

number in the space provided below for future reference.

Serial number:

Date of purchase:

Should your unit ever require servicing, a Return Authorization number (RA) must be obtained before shipping

your unit to Samson. Without this number, the unit will not be accepted. Please call Samson at 1-800-3SAMSON

(1-800-372-6766) for a Return Authorization number prior to shipping your unit. Please retain the original packing

materials and if possible, return the unit in the original carton and packing materials.

Introduction

dB500 Features

The Samson dB500 two way loudspeaker is an all-in-one solution for live sound. Here are some of its main fea-

tures:

•Two-way loudspeaker system.

•Standard speaker stand receptacle.

•Custom designed, Celestion, heavy-duty, 15-inch low frequency driver with 2.5-inch voice coil.

•1" throat, high-frequency compression driver with 1.75-inch titanium diaphragm.

•500 watt power handling .

•15 and 30- degree monitor angles.

•Arrayable with 10 fly points.

•Internal 18 dB/octave Butterworth time aligned crossover.

•Rugged, road-worthy construction for high reliability.

•Quality build and rugged construction ensure reliable performance from venue to venue.

•Three-year extended warranty.

500

dB500 FRONT PANEL

115 Inch Driver – Custom designed

Celestion, heavy-duty, 15” low frequency

driver provides deep bass.

2Wide Dispersion Horn – 1 inch throat,

60 x 90 degree wide dispersion horn pro-

vides extensive coverage and linear off

axis response.

3Titanium Compression Driver – 1.75

inch (44mm), titanium diaphragm with 1

inch opening.

4Handle – One of three ultra over sized

rubber grip carry handles.

5Stacking Bumper – Gender mating

bumpers for stacking dB500’s.

6Handle – One of three ultra over sized

rubber grip carry handles.

7Steel Grill – Durable steel grill provide

protection for, and easy access to LF

driver.

8Handle – One of three ultra over sized

rubber grip carry handles.

9Enclosure – Rugged PVC plastic

enclosure.

S/N

SPEAKER INPUT

SPEAKER

IN/EXTENTION

SIDE BY SIDE CONCERT ARRAY TOP VIEW

WARNING: dB500 MONITOR CAN ACHIEVE

EXTREMELY HIGH SOUND PRESSURE

LEVELS. USE CAUTION OR HEARING

DAMAGE MAY RESULT.

FLYING HARDWARE FOR THE dB500 CAN

BE AFFIXED AT THE HANDLES,

REAR CABINET (2 POSITIONS)

AND TOP OF THE CABINET (2 POSITIONS).

FITTINGS ARE M8 (METRIC)

AND SHOULD BE EYE BOLTS

1- 1+

2+ 2-

dB500 Components

500

Active Monitor

ActiveMonitor

12345

dB500 REAR PANEL

ASPEAKER INPUT – Speakon connector for

connecting to power amplifier. See page

10 of this manual for a detailed wiring dia-

gram.

BEXTENSION SPEAKER –1/4” parallel out-

put for connecting additional dB500’s.

Quick Set-Up

In the following pages of this manual you will find a detailed explanation of system set-ups, but

if you just want to get started quickly you can follow the diagram and steps below to set up a

basic stereo PA system.

NOTE: It is important to remember the Golden Rule of audio … " LAST ON, FIRST OFF".

Translated, this means that when turning on your system, you should always turn your power

amplifiers or powered monitors on LAST, and when turning your system off, turn your power

amps off FIRST. This helps avoid any loud pops caused by inrush current at power up, which

can sometimes damage loudspeakers.

1 Before connecting your dB500’s, make sure that the power of all your systems compo-

nents is turned off. Also, make sure that your power amplifier volume controls and the

main left and right faders of your mixer are turned all the way down.

2Connect the cables to your microphones and instruments, or a CD player, to your mixer.

3 Switch on the power of the mixer, instruments and/or CD player, and then switch on

your power amplifier.

4While speaking into the mic (or playing the instrument or CD), raise the mixers main

Left and Right faders to the "0" position. Be sure that the mixer’s output meters are not

clipping. If they are, adjust the mixer volumes down until the signal cleans up.

5 Now, slowly raise your power amp until you reach the desired listening level.

PAN

12K

1010

2.5K

1010

80Hz

1010

-26 5

-26

+26 60

+26

MONO

MONO OUT

AUX OUT

LINE IN

AUX RET

LEFT/MONO

RIGHT

CR OUT

LEFT

RIGHT

MIX OUT

LEFT

RIGHT

LINE IN

AUX RETURN

C/ROOM

+PHONES

LEFT RIGHT LEFT RIGHT

2T IN 2T OUT

MIX/2T

PAN

12K

1010

2.5K

1010

80Hz

1010

BAL

12K

1010

2.5K

1010

80Hz

1010

BAL

12K

1010

2.5K

1010

80Hz

1010

010

2TK TO MIX

010

AUX

010

AUX

010

AUX

010

AUX

010

GAIN

CLIP

GAIN

CLIP

3/L

4/R

5/L

6/R

15 15

15 15 15

MAXIMUM DYNAMIC RANGE

HARD

DISK

CHANNEL 1CHANNEL 1 CHANNEL 2CHANNEL 2 CHANNEL 3/4CHANNEL 3/4 CHANNEL 5/6CHANNEL 5/6 LLRRMIXMIX

MIC/LINE 1 MIC/LINE 2 MIC/LINE 3/4 MIC/LINE 5/6

PHONES

MASTER SECTION

MODE

REC REC

RECREC MASTER SECTION

PEAK

-6

-20

POWER

48V

SAMSON TECHNOLOGIES CORP., HICKSVILLE, NEW YORK

TO PREVENT SHOCK DO

NOT OPEN. NO USER

SERVICABLE PARTS

INSIDE. REFER SERVICING

TO QUALIFIED SERVICE

PERSONNEL. TO PREVENT

FIRE OR SHOCK HAZARD

CAUTION

HEATSINKMAY BE

HOT!DO NOT BLOCK

AIRFLOWOR OVER-

HEATINGMAY OCCUR

RISKOF ELECTRIC SHOCK

DONOT OPEN

SERIAL

NUMBER

FUSE

FUSE RATING

12A/250V(115V)

6A/250V(230V)

CAUTION !

~ACINPUT

115V/230W,50/60HZ

510W(115V)900W (230V)

USE CLASS 2 WIRING MAXIMUM LOAD IMPEDANCE 4Ω

RIGHT LEFT

+RIGHT LEFT+

GROUND

OUTPUT 250W/4Ω

SERVO 550 STUDIO AMPLIFIER

RIGHT

LEFT

BRIDGED

MONO STEREO

INPUTS

(BALANCED

10KΩ/0dBm0)

TIP RING SLEEVE

TIP +

RING -

SLEEVE GND

SPEAKER

INPUT

SPEAKER

INPUT

POWER AMP

INPUTS

MAIN LEFT AND RIGHT

OUTPUTS

POWER AMP

OUTPUTS

SIGNAL FLOW

500

ActiveMonitor

500

Active Monitor

ActiveMonitor

Controls and Functions

Positioning the dB500

Microphone Positioning - How to Reduce Feedback

Feedback is the annoying howling and squealing that is heard when the

microphone gets too close to the speaker and the volume is high. You get

feedback when the microphone picks up the amplified signal from the

speaker, and then amplifies through the speaker again, and then picks it

up again, and so on and so on. In general, it is always recommended that

any LIVE mic (a mic that’s on) is positioned behind the speaker enclo-

sures. This will give you the best level from your system before feedback.

One possible exception is when you are adjusting the sounds of the

microphones, since you want to listen in front of the speaker to hear prop-

erly. To do this, lower the MAIN VOLUME while setting the EQ and effect

from in front of the speakers. Once you have the sound you like, move

the microphones to behind the speakers and raise the Main volume.

Speaker Placement

Whenever possible it is a good idea to raise the speakers above the

heads of the listening audience. The dB500 enclosure features a stan-

dard 1 3/8” pole mount receptacle, which are compatible with speaker

stands from a variety of manufacturers. In a smaller setting like a school

cafeteria, library, or a mall kiosk, you can also use the dB500 in one of

the tilt back monitor positions, which will improve the projection of the

speakers and may eliminate the need for speaker stands.

Using the dB500 as a Floor Monitor

The dB500 is an ideal solution for stage

monitoring and thanks to its unique design,

two wedge monitor positions are possible.

When placed on its side with the high fre-

quency horn facing to the left of the enclo-

sure, the dB500 is tilted at a 15 degree

angle optimizing performance when used

on a small stage. When placed on its side

with the high frequency horn facing to the

right of the enclosure, the dB500 is tilted at

a 30 degree angle optimizing performance

when used on larger stages. In a large

stage monitor system, several dB500’s can

be daisy-chained together using the

EXTENSION SPEAKER output.

Note: Be sure to check the manufacturers

minimum recommended impedance for

your power amplifier to avoid overload and

possible damage to both the speaker and

amplifier. In many instances when using the dB500 as a monitor system, you may choose to use an

external equalizer like the Samson S Curve 131 to increase the volume and reduce the chance of

feedback.

STAGE MONITOR POSITION

15 DEGREES

STAGE MONITOR POSITION

30 DEGREES

NEAR FIELDFAR FIELD

Bottom Top

500

ActiveMonitor

Active Monitor

500

ActiveMonitor

Bass Guitar Lead Guitar

Keyboards

SIGNAL FLOW

Vocal Signal Processor

S direct

Direct Box

Stereo Signal

PAN

12K

1010

2.5K

1010

80Hz

1010

-26 5

-26

+26 60

+26

MONO

MONO OUT

AUX OUT

LINE IN

AUX RET

LEFT/MONO

RIGHT

CR OUT

LEFT

RIGHT

MIX OUT

LEFT

RIGHT

LINE IN

AUX RETURN

C/ROOM

+PHONES

LEFT RIGHT LEFT RIGHT

2T IN 2T OUT

MIX/2T

PAN

12K

1010

2.5K

1010

80Hz

1010

BAL

12K

1010

2.5K

1010

80Hz

1010

BAL

12K

1010

2.5K

1010

80Hz

1010

010

2TK TO MIX

010

AUX

010

AUX

010

AUX

010

AUX

010

GAIN

CLIP

GAIN

CLIP

3/L

4/R

5/L

6/R

15 15

15 15 15

MAXIMUM DYNAMIC RANGE

HARD

DISK

CHANNEL 1CHANNEL 1 CHANNEL 2CHANNEL 2 CHANNEL 3/4CHANNEL 3/4 CHANNEL 5/6CHANNEL 5/6 LLRRMIXMIX

MIC/LINE 1 MIC/LINE 2 MIC/LINE 3/4 MIC/LINE 5/6

PHONES

MASTER SECTION

MODE

REC REC

RECREC MASTER SECTION

PEAK

-6

-20

POWER

48V

SAMSON TECHNOLOGIES CORP., HICKSVILLE, NEW YORK

TO PREVENT SHOCK DO

NOT OPEN. NO USER

SERVICABLE PARTS

INSIDE. REFER SERVICING

TO QUALIFIED SERVICE

PERSONNEL. TO PREVENT

FIRE OR SHOCK HAZARD

CAUTION

HEATSINKMAY BE

HOT!DO NOT BLOCK

AIRFLOWOR OVER-

HEATINGMAY OCCUR

RISKOF ELECTRIC SHOCK

DONOT OPEN

SERIAL

NUMBER

FUSE

FUSERATING

12A/250V(115V)

6A/250V(230V)

CAUTION !

~ACINPUT

115V/230W,50/60HZ

510W(115V)900W (230V)

USECLASS 2 WIRING MAXIMUM LOAD IMPEDANCE 4Ω

RIGHT LEFT

+RIGHT LEFT+

GROUND

OUTPUT250W/4Ω

SERVO 550 STUDIO AMPLIFIER

RIGHT

LEFT

BRIDGED

MONO STEREO

INPUTS

(BALANCED

10KΩ/0dBm0)

TIPRING SLEEVE

TIP +

RING -

SLEEVEGND

SAMSON TECHNOLOGIES CORP., HICKSVILLE, NEW YORK

TO PREVENT SHOCK DO

NOT OPEN. NO USER

SERVICABLE PARTS

INSIDE. REFER SERVICING

TO QUALIFIED SERVICE

PERSONNEL. TO PREVENT

FIRE OR SHOCK HAZARD

CAUTION

HEATSINKMAY BE

HOT!DO NOT BLOCK

AIRFLOWOR OVER-

HEATINGMAY OCCUR

RISKOF ELECTRIC SHOCK

DONOT OPEN

SERIAL

NUMBER

FUSE

FUSERATING

12A/250V(115V)

6A/250V(230V)

CAUTION !

~ACINPUT

115V/230W,50/60HZ

510W(115V)900W (230V)

USECLASS 2 WIRING MAXIMUM LOAD IMPEDANCE 4Ω

RIGHT LEFT

+RIGHT LEFT+

GROUND

OUTPUT250W/4Ω

SERVO 550 STUDIO AMPLIFIER

RIGHT

LEFT

BRIDGED

MONO STEREO

INPUTS

(BALANCED

10KΩ/0dBm0)

TIPRING SLEEVE

TIP +

RING -

SLEEVEGND

500

ActiveMonitor

500

Active Monitor

ActiveMonitor

SPEAKER

INPUT SPEAKER

INPUT

SPEAKER

INPUT

MONITOR AMP

INPUT

MAIN POWER AMP

INPUTS

SPEAKER

INPUT

EXTENSION SPEAKER

OUTPUT

SIGNAL FLOW

500

Active Monitor

ActiveMonitor

500

ActiveMonitor

This example shows a typical PA system using mixer with an external power amplifier and a pair of dB500 for the main left and right

mix. A separate signal from the mixer’s AUX/MOINITOR buss is sent to two additional dB500’s place in the tilt-back, wedge positions

for use as floor monitors. In order to increase the output of the monitor system, the use of an external graphic equalizer like one of the

Samson “E” or “S curve” series is highly recommended.

Controls and Functions

Setting Up Your dB500 System

Controls and Functions

Setting Up Your dB500 System

Using Speaker Stands

The dB500 enclosure features a standard 1 3/8”,

pole mount receptacle, which are compatible with

speaker stands from a variety of manufacturers.

Before installing the dB500 on a speaker stand,

loosen the thumbscrew located on the bottom of the

rear side of the enclosure. Once installed on the

stand, be sure to tighten the thumbscrew to hold the

speaker in place. Be careful not to over tighten the

thumbscrew to avoid stripping the threads.

Stacking the dB500

The dB500 enclosure incorporates gender mating

stack feet and bumpers that allows you to stack one

dB500 on top of another. When stacking the

dB500’s, be certain that the rubber feet from the top

unit are securely fastened into the bottom unit’s

stacking bumpers.

NOTE: DO NOT STACK dB500’s OVER TWO (2)

TALL.

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