Phonic ICON 300 User manual

ICON 300

ICON 700

Contractor Power Amplifier

English

1. Read these instructions before operating this

apparatus.

2. Keep these instructions for future reference.

3. Heed all warnings to ensure safe operation.

4. Follow all instructions provided in this document.

5. Do not use this apparatus near water or in locations

where condensation may occur.

6. Clean only with dry cloth. Do not use aerosol or liquid

cleaners. Unplug this apparatus before cleaning.

7. Do not block any of the 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 is 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 plug, convenience receptacles,

and the point where they exit from the apparatus.

11. Only use attachments/accessories speciﬁed by the

manufacturer.

12. Use only with a 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 lighting

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.

IMPORTANT SAFETY INSTRUCTIONS

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

DO NOT REMOVE COVER (OR BACK)

NO USER SERVICEABLE PARTS INSIDE

REFER SERVICING TO QUALIFIED PERSONNEL

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 in-

tended to alert the user to the presence of important operat-

ing and maintenance (servicing) instructions in the literature

accompanying the appliance.

WARNING: To reduce the risk of ﬁre or electric shock, do

not expose this apparatus to rain or moisture.

CAUTION: Use of controls or adjustments or performance

of procedures other than those speciﬁed may result in

hazardous radiation exposure.

The apparatus shall not be exposed to dripping or splashing and that no objects ﬁlled with liquids, such as vases,

shall be placed on the apparatus. The MAINS plug is used as the disconnect device, the disconnect device shall

remain readily operable.

Warning: the user shall not place this apparatus in the conﬁned area during the operation so that the mains switch

can be easily accessible.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

Contractor Power Ampliﬁer

ICON 300/700

INTRODUCTION…………………………………………………………...…...........……........……..4

FEATURES………………………………………………………….…………....................................4

PRECAUTIONS………………………………………………………….………….............................4

ABOUT THIS MANUAL…………………………………………….…………...................................4

FRONT PANEL DESCRIPTION…………………………………………….…………......................5

REAR PANEL DESCRIPTION…………………………………………….………….........................6

BALANCE BARRIER STRIP INPUT CONNECTIONS……………………….………..…...............7

BARRIER STRIP OUTPUT CONNECTIONS……………………………………….…..……….......7

AUDIO TRANSFORMER OUTPUTS…………………………………………….……….….............8

PARALLEL MONO CONFIGURATION…………………………………………….……….…..........9

SPECIFICATIONS..…………………………………………….………….......................................10

BLOCK DIAGRAM…………………………………………….………….........................................11

Phonic reserves the right to improve or alter any information supplied within this document without prior notice.

V1.1 10/10, 2005

TABLE OF CONTENTS

4 ICON 300/700

INTRODUCTION

Congratulations on your purchase of the Phonic

Icon 300 or 700 power ampliﬁer. The Icon Series is

a line of professional power ampliﬁers speciﬁcally

designed for contracting application. These two

models each has independent channels and is

available for driving 200V, 140V, 100V, 70V, 50V or

25V "constant voltage" lines. Each channel has its

own power transformer (toroidal type) secondary

to provide maximum audio separation (minimum

sound leakage) between two channels, minimizing

interaction that can otherwise occur on ampliﬁers

with a common power supply.

FEATURES

 Automatic dual-speed, high efﬁciency fan

cooling

 Rear panel detented gain controls for

security and resetability

 Stereo, bridge or parallel operating

modes

 XLR and barrier strip inputs

 XLR in and outs for multiple ampliﬁer

operation & easy signal pass-through

 Fully short-circuit, temperature and DC

offset protection

 Barrier strip connection determines output

mode - 25V, 70V, 100V and direct outputs

available simultaneously

 Toroidal output transformers provide full

electrical isolation and meet worldwide

safety agency approval

 Built-in 45 Hz subsonic ﬁlter prevents

speaker transformer saturation with

minimal effect on program material

 Power-up muting

PRECAUTIONS

1. When ﬁrst powering up the amp, keep the

ampliﬁer gain controls all the off, in order to

block potentially damaging or annoying sounds

caused by defective cables or hookups. When

turning up the gain, do it gradually, until normal

operation is veriﬁed. These precautions are

necessary with all high-power ampliﬁers,

since they have enough power to blow most

speakers in abnormal situations.

2. Check the AV Voltage before connecting the

AC plug

3. Speaker Output Shock Hazard! The Icon

300 and 700 amps are capable of producing

hazardous output voltages. To avoid electrical

shock, make sure the cover is in place over

the output terminals, and do not touch any

exposed speaker wiring while the ampliﬁer is

operating.

ABOUT THIS MANUAL

Please be reminded that a power ampliﬁer is a

high-current, high-power device and should be

treated with respect and care. Please read this

manual before connecting and operating your unit,

and ﬁle it in a safe place for future reference.

5ICON 300/700

FRONT PANEL DESCRIPTION

1. Power Switch

The power ON/OFF switch with an LED indicator.

2. Protect LED Indicator

The Icon 300/700 features several types of

protection to prevent damage to the circuitry during

turn-on or fault conditions. If the LEDs light up, this

indicates that one of the various protections is

safeguarding the different sections of the ampliﬁer

and in these cases, the power output is normally

switched off until normal operating conditions are

restored.

 Loudspeaker protection: the power-

on protection relay prevents damaging

thumps to the speakers as the power

comes on. When the amp is switched

on, the protect LED will light for a few

seconds, and then go out, indicating that

the relay has closed.

 Thermal protection on the heat sink: If

the amp overheats, thermal shutdown

protects the circuitry until the temperature

is reduced to a safe level.

 Short circuit protection: The Protect LED

Indicator will also light up if the speaker

terminals are short-circuited, or the

impedance of the load is too low. In these

circumstances, the Protect LED will stay

on until the fault conditions are rectiﬁed.

Some protection situations require the ampliﬁer

to be switched off and then back on for normal

operating conditions to be restored.

3. Clip LED Indicator (Icon 300)

The LEDs light up at clipping status, whenever any

conditions occur that could cause problems for the

amp, such as an out-of-spec load and waveform

distortion. Because of the Icon's ability to enter

and exit clipping with as few audible artifacts as

possible, you may not hear any distortion even if

the indicator ﬂashes. In general, a few ﬂashes every

now and then will not be a problem. However, if the

LEDs ﬂash often or remain on for any extended

period of time, then turn down the volume controls

to reduce the signal level going to the Icon amp. If

this doesn't solve the problem, check your output

cables and speakers.

4.Signal “Status” LED Indicator

Each channel of the Icon 300/700 features a signal

LED to show that there is an audio signal at the

input to the channel. The threshold for the indicator

is -26dB, which should be enough to avoid noise

triggering the LED.

5. Limit LED Indicator (Icon 700)

The Icon 700 has a built-in limiter on each channel

to prevent clipping. Should the signal reach a level

high enough to cause clipping (ie. output power is

over 400W per channel), the limiter momentarily

reduces the input signal level, just enough to

prevent it. The limit LED lights whenever this

occurs.

6 ICON 300/700

REAR PANEL DESCRIPTION

6. Gain Controls

These two knobs and the level controls for channels

one and two respectively. Turning clockwise

will increase its gain and counter clockwise will

decrease its gain. Please always power-up with

the volume all the way down, and increase the

volume slowly to make sure that no conditions

exist which could annoy your audience or harm

your speakers.

7. CH1/CH2 Inputs (XLR Connectors)

These inputs are provided for making balanced

connection to mixers, preamps, etc. The XLR

inputs are wired as per the following convention:

8. Balanced Barrier Strip Inputs

These connection points provide the best option for

permanent or long-term installation. Connections

should be screwed down tight to exclude oxygen,

and care should be taken to avoid loose strands of

wire that may cause short circuits.

9. CH1/CH2 Parallel Pass Through XLR

Connectors

These XLR output connectors are provided

for parallel connection to another Icon or other

ampliﬁer.

10. Stereo/Parallel/Bridge Switch

In Stereo operation, two separate signals are

treated separately by channels 1 and 2 of the

ampliﬁers.

In Parallel operation, one signal is treated by

bother channel 1 and 2 of the ampliﬁer. In other

words, a signal connected to Input CH1 (6) or CH2

(7) is sent to both Output CH1 (10) and CH2 (11).

In Bridge operation, both channels are conﬁgured

to drive a single load with a single signal to CH1

(only CH1 is operative, and CH2 input must be

vacant) at twice the power.

This switch should only be used when the

Ampliﬁer is off; otherwise the speakers'

components could be damaged.

11. Direct Output Connectors, CH1/CH2

These are barrier strips to connect low impedance

speakers. Spade lugs and bare wires should both

be screwed down tight to exclude oxygen, and care

should be taken to avoid loose strands of wire that

may cause short circuits.

12. Audio Transformer Outputs, CH1/CH2

These are barrier strips to connect distributed line

(25V, 70V, 100V, 140V and 200V). Spade lugs

and bare wires should both be screwed down tight

to exclude oxygen, and care should be taken to

avoid loose strands of wire that may cause short

circuits.

7ICON 300/700

Balance Barrier Strip Input

Connections

Balanced connection - Attach as shown. Connect

the (+) wire and ground wire to terminal pins as

marked.

Unbalanced connection - Attach input signal

wires as shown. Use the non-inverting (+) input

and the ground terminals of the header, and also

connect a wire jumper between the inverting (-)

input and the ground terminal. The wire jumper will

prevent a reduction in gain caused by a ﬂoating

unbalanced input.

Input sensitivities - Audio signals of these levels

will produce full rated output power at 8 ohms.

ICON 300 - 1.02Volts (+2.4dBu)

ICON 700 - 1.02Volts (+2.4dBu)

Barrier Strip Output Connections

Barrier strips located on the rear panel allow speaker

cable connections to the ampliﬁer output. See the

diagrams for details on connecting speakers and/

or distributed (23-, 70-, or 100-volt) lines. Insulated

connectors of the type shown are recommended.

Always make sure the ampliﬁer is turned off

before you change any output connections.

Loose screw terminals, insert wire connectors

under screws. Tighten screw terminals.

Direct low impedance:

Output connection for Icon 300/700,

bridge mono mode

Output connection for Icon 300/700,

direct low impedance

8 ICON 300/700

Bridge Mono Conﬁguration for Direct Outputs

1. Set into bridge mode

2. Connect the signal to channel 1's input

only. Do not connect an input signal to

channel 2.

3. Use on channel 1's gain control to set the

level. Both channels' signal and clip indicators

should ﬂash identically when the ampliﬁer is

operating.

Audio Transformer Outputs

Make sure the sum of the power settings of all

the speakers does not exceed the power rating of

the ampliﬁer. It is a good practice to allow a 20%

safety margin. For example, if the ampliﬁer has a

power rating of 300W, it is always a good idea to

make sure the sum of the loudspeaker loads on the

distributed line is 240W or less.

25 volt line output connection

50 volt line output connection

100 volt line output connection

Bridge Mono Conﬁguration for Audio

Transformer Outputs

1. For driving 140V or 200V distributed lines, the

ampliﬁer must be set into bridge mono mode.

2. Connect the signal to channel 1's input

only. Do not connect an input signal to

channel 2.

3. Use only channel 1's gain control to set the

level. Both channels signal and clip indicators

should ﬂash identically when the ampliﬁer is

operating.

140 volt line output connection,

bridge mono mode

200 volt line output connection,

bridge mono mode

9ICON 300/700

Parallel Mono Conﬁguration

The "Parallel mode" ties the two channel inputs

together so that both are driven by the same

signal, without the need for external jumpers or

wiring. After the inputs, both channels operate

independently. Though they carry the same signal,

their gain controls affect only their respective

channels, which must be used separately. Please

refer to the previous Rear Panel Description. Never

parallel the speaker outputs.

Low-Impedance and Distributed Speakers on

Icon Ampliﬁers

If your application calls for connection of an 8 ohm

speaker and a distributed line to the same ampliﬁer

channel, the Icon 300 and Icon 700 are among

the very few ampliﬁers that can do that. However,

since most of the audio power is drawn by the

direct-connected speaker, you must derate the

distributed line; and the distributed line should have

a total power load of no more than one-fourth of the

ampliﬁers normal distributed line power rating.

 Computing maximum allowable distributed

line load with a known low-impedance

load

MaxTOP = [MaxRatedPL - ((2 x MaxRatedPL)/

Impedance)]/2

MaxTOP is the sum of the power taps of the

speakers connected to the Audio Transformer

outputs.

MaxRatedPL is the maximum rated power of the

ampliﬁer into a two ohm load.

Impedance is the load impedance connected to the

direct outputs.

Example: One channel of an Icon 700 has an 8-

ohm load connected to the Direct (low impedance)

output. Then the maximum power left available

to drive a distributed line is: MaxTOP = [550-

((2x550/8)/2)] = 206 Watts

10 ICON 300/700

Speciﬁcations

ICON 300 ICON 700

Direct Power Out

Max.average power at 45Hz-20kHz

With 0.1% THD

8 ohm 120W×2 240W×2

4 ohm 200W×2 400W×2

2 ohm,1kHz,1%THD 300W×2 550W×2

Bridged mono 8 ohm,1kHz,1%THD 420W 850W

Bridged mono 4 ohm,1kHz,1%THD 540W 1100W

Isolated Constant Voitage Out

200V or 140V Bridege 300W 700W

100V or 70V 150W×2 350W×2

25V 120W 280W×2

Frequency Response

Direct Outputs (+0/-2dB) 50Hz-50kHz

Isolated Outputs (+0/-2dB) 50Hz-16kHz

Total Harmonic Distortion <0.05 <0.05

Sensitivity (fro full output) 1.02V 1.02V

Voitage Gain 28dB 32dB

Input Impedance

Balanced/Unbalanced 20k/10k ohm

Damping Factor >200(direct output)

S/N Ratio Less than 100dB below rated output (20Hz-20kHz)

Protection Circuits

● Output offset voitage protection

● Heat sink overheat protection

● Transformer overheat protection

● Load shorting protection

● Power on/off protection

Controls

Front Panel/ Power Switch/

Rear Panel Ch1 & Ch2 gain controls (41 click); Parallel/Stereo/

Bridge switch

Connectors

Input/ XLR jack ×2,Barrier strip ×1/

Output Covered Barrier strip ×2;heavy-duty binding post

Cooling One dual speed fan

Indicators

Clip:Red Signal:Green

Protect:Yellow Power:

Red

Limit:Red Signal:Green

Protect:Yellow Power:

Red

Dimensions(H×W×D) 132×480×428mm 132×480×428mm

Net Weight 24.3KG 24.3KG

Shipping Weight 26.0KG 26.KG

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