background image

Series

 

and

 

Parallel

 

Speaker

 

Connections

  

 

Whenever

 

connecting

 

more

 

than

 

one

 

speaker

 

per

 

channel

 

to

 

an

 

amplifier,

 

you

 

must

 

consider

 

the

 

way

 

in

 

which

 

the

 

amplifier

 

will

 

be

 

impacted

 

by

 

adding

 

the

 

additional

 

speaker(s).

 

Additionally,

 

speakers

 

with

 

dual

 

voice

 

coils

 

also

 

apply

 

to

 

this

 

consideration.

  

Two

 

voice

 

coils

 

in

 

a

 

single

 

speaker

 

also

 

cause

 

different

 

reactions

 

from

 

an

 

amplifier

 

depending

 

on

 

the

 

way

 

in

 

which

 

they

 

connect

 

to

 

the

 

amplifier.

  

 

The

 

connection

 

of

 

more

 

than

 

one

 

speaker

 

per

 

channel

 

will

 

make

 

the

 

amplifier

 

run

 

warmer.

  

For

 

the

 

best

 

sonic

 

results,

 

use

 

one

 

speaker

 

per

 

amplifier

 

channel.

  

If

 

you

 

must

 

connect

 

more

 

than

 

one

 

speaker

 

per

 

channel,

 

there

 

are

 

two

 

methods

 

in

 

which

 

to

 

do

 

so:

 

Series

 

and

 

Parallel.

  

 

Series

 

Connection

 

 

A

 

series

 

connection

 

is

 

established

 

when

 

voice

 

coils

 

are

 

connected

 

in

 

a

 

string

 

 

end

 

to

 

end

 

 

so

 

there’s

 

only

 

one

 

way

 

for

 

audio

 

signals

 

to

 

flow

 

“in”

 

and

 

only

 

one

 

way

 

for

 

audio

 

signals

 

to

 

flow

 

“out”.

   

For

 

example,

 

if

 

you

 

were

 

to

 

series

connect

 

two

 

speakers

 

to

 

the

 

front

 

right

 

channel

 

of

 

the

 

amplifier:

  

 

• 

The

 

positive

 

output

 

terminal

 

of

 

the

 

right

 

channel

 

connects

 

to

 

the

 

positive

 

input

 

post

 

of

 

the

 

first

 

speaker.

  

• 

The

 

negative

 

input

 

post

 

of

 

the

 

first

 

speaker

 

connects

 

to

 

the

 

positive

 

input

 

post

 

of

 

the

 

second

 

speaker.

  

• 

The

 

negative

 

input

 

post

 

of

 

the

 

second

 

speaker

 

connects

 

to

 

the

 

speaker's

 

negative

 

output

 

terminal

 

of

 

the

 

right

 

channel.

  

 

The

 

total

 

impedance

 

of

 

speakers

 

in

 

series

 

is

 

found

 

by

 

adding

 

their

 

impedances

 

together.

   

For

 

example;

 

two,

 

four

ohm

 

speakers

 

in

 

series

 

is

 

an

 

eight

ohm

 

load.

   

Series

 

connections

 

are

 

easier

 

on

 

the

 

amplifier

 

than

 

parallel

 

connections

 

as

 

the

 

total

 

impedance

 

is

 

higher

 

than

 

driving

 

a

 

single

 

speaker.

  

 

 

An

 

example

 

of

 

a

 

SERIES

 

connection

 

between

 

two

 

speakers.

 

 
 
 
 
 

 
 
 
 

26 

 

Содержание XPA-1

Страница 1: ......

Страница 2: ...2...

Страница 3: ...Layout 12 Back Panel Layouts XPA 1 Back Panel XPA 2 Back Panel XPA 3 Back Panel XPA 5 Back Panel 13 13 15 17 19 Installation and Connections AC Power Considerations Physical Placement Heat Considerati...

Страница 4: ...to the amplifier Turn on and turn off thumps Hum Noises in the Speakers Other Probable Causes of Noise One or more RED lights on the Front Panel are Blinking Problems with the whole A V System 28 28...

Страница 5: ...nent bodily injury or death This amplifier should be installed in a location which provides adequate ventilation The amplifier should not be installed on a bed sofa rug or other similar surfaces that...

Страница 6: ...is apparatus does not exceed the Class A Class B whichever is applicable limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian Depart...

Страница 7: ...to provide some protection against voltage surges and built up static charges Article 810 of the National Electrical Code ANSI NFPA 70 provides information with regard to proper grounding of the lead...

Страница 8: ...lity that will satisfy the most discriminating listener Our amplifiers are built for decades of reliable use with a full five year warranty on all parts and labor Our staff is a phone call away ready...

Страница 9: ...rail voltage An extremely robust output section 12 output devices maximizes power and delivers exceptional performance Rated at 250 watts into 8 ohms 500 watts into 4 ohms minimum rating it will peak...

Страница 10: ...wer that an amplifier receiver can deliver without being damaged Ratings are performed this way for the sole reason of exaggerating the perceived power of the product and during normal use the actual...

Страница 11: ...which is wrapped in static free plastic The plastic sheeting is tucked underneath the amplifier and securely taped It is recommended that the plastic sheeting be removed after the amp is lifted out f...

Страница 12: ...The back panel of each amplifier has an LED Status Selector which can turn the blue LEDs off 2 Front Panel Power Switch This switch provides the ON OFF control of the amplifier from the front panel W...

Страница 13: ...Meter LED Status Selectors The status LED single LED that lights when the unit is on and meter LEDs which move in sync with the amplifier output on the amplifier faceplate can be turned on or off with...

Страница 14: ...ct or change speaker wiring with the amplifier turned on 9 IEC Power Cable Connection 10 Master Power Switch This rocker switch provides the master power for the amplifier After it is in the ON positi...

Страница 15: ...anced Input Selector When turned towards Un Bal the RCA unbalanced input is chosen and active When turned towards Bal the XLR Balanced input is chosen and active 6 Right Channel RCA Unbalanced Input C...

Страница 16: ...peaker to the Left Channel and Right Channel speaker terminals 13 IEC Power Cable Connection 14 Master Power Switch This rocker switch provides the master power for the amplifier After it is in the ON...

Страница 17: ...chosen and active 6 Channel Two RCA Audio Input Connects to the RCA output of a preamplifier or processor This the Channel Two unbalanced connection 7 Channel Two XLR Balanced Input Connects an XLR B...

Страница 18: ...olarity when connecting speakers and be sure that the wires do not touch between positive and negative terminals 14 Channel Two Speaker Terminals This is nominally the Center speaker although you may...

Страница 19: ...s chosen and active 6 Channel Four RCA Audio Input Connects to the RCA output of a preamplifier or processor This is the Channel Four unbalanced connection 7 Channel Four XLR Balanced Input Connects a...

Страница 20: ...ier processor or other audio device is connected to the trigger input here the amplifier will power up and shut down along with the first device 19 Channel Five Speaker Terminals This is nominally the...

Страница 21: ...dicator All Emotiva amplifiers operate on either 115V or 230V The voltage is detected when the amplifier is turned on and is identified by the indicator lights There are no user adjustments the amplif...

Страница 22: ...the troubleshooting section of this manual Physical Placement Heat Considerations X series amplifiers employ convection cooling which is very effective and completely noiseless Under normal operating...

Страница 23: ...etails on series and parallel connections see pages 26 27 It is important to observe polarity so that the speaker wire connects to the red and black terminals on the amplifier and the corresponding te...

Страница 24: ...Connection Diagram using an XPA 5 for example 24...

Страница 25: ...ach speaker Example You plan to use Channel 1 on the amplifier to power your front left speaker With an RCA Unbalanced cable connect the output labeled L to the unbalanced input on amplifier Channel 1...

Страница 26: ...established when voice coils are connected in a string end to end so there s only one way for audio signals to flow in and only one way for audio signals to flow out For example if you were to series...

Страница 27: ...wo ohm single channel loads are NOT RECOMMENDED Running your amplifier below recommended impedance level can cause excessive heat and will eventually drive the amplifier into protect mode blinking red...

Страница 28: ...h may be on an external processor loop or a tape monitor loop is engaged Check that your preamplifier or source is running the correct surround mode Maybe it is set for 2 channel stereo when you were...

Страница 29: ...cting any cables during troubleshooting Try to have all of your equipment on the same electrical outlet or circuit Group all the low power components preamp CD player DVD etc on a single outlet or pow...

Страница 30: ...ese may tend to reveal noises which other speakers do not One or more RED lights on the Front Panel are Blinking Your X Series Amplifier is equipped with a Protect Mode to minimize the possibility of...

Страница 31: ...kHz with less than 05db deviation at rated power Broadband Frequency Response 3db 5Hz to 150kHz Amplifier Gain 32db Signal to Noise Ratio 1 watt 89db Full Power 117db Input Impedance Unbalanced 20koh...

Страница 32: ...nd Response 20 Hz to 20 kHz with less than 05db deviation at rated power Broadband Frequency Response 3db 5Hz to 150kHz Amplifier Gain 32db Signal to Noise Ratio 1 watt 91db Full Power 110db Input Imp...

Страница 33: ...Band Response 20 Hz to 20 kHz with less than 05db deviation at rated power Broadband Frequency Response 3db 5Hz to 150kHz Amplifier Gain 32db Signal to Noise Ratio 1 watt 98db Full Power 112db Input...

Страница 34: ...HD Power Band Response 20 Hz to 20 kHz with less than 05db deviation at rated power Broadband Frequency Response 3db 5Hz to 150kHz Amplifier Gain 32db Signal to Noise Ratio 1 watt 97db Full Power 111d...

Страница 35: ...e to associated or connected equipment Service Assistance Please note that BEFORE sending your amplifier in for repair you MUST call Emotiva and obtain a return authorization RMA number Before contact...

Страница 36: ...d Emotiva reserves the right to make improvements to its products at any time Therefore the specifications of the product and the specific details of this manual are subject to change at any time Emot...

Страница 37: ...37...

Отзывы: