APart CHAMP-2 Руководство по эксплуатации онлайн [11/16] 759211

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9)Bridgemodeswitch:usethisswitchtoconverttheamplierintoamonobridgeamplier.In

thiscaseyoucanapplyaninputsignaltothechannel1inputonly!Leavethechannel2

connectors open ! Bridge mode input level is controlled by the channel 1 volume controller

only.The‘BR’ledonthefrontpanelwillindicatethattheamplierisinbridgemode.Minimum

bridgemodespeakerloadis8ohms.Neverusethespeakeroutput–(minus)connectorsin

bridge mode !

10)Speakerloadimpedanceselectorchannel1:setthisselectorcorrectlyaccordingtothe

actualloadimpedance.For4to8ohmsapplications:switchisnotpushedin.For2to3

ohmapplications:pushthebuttonin.Pleasenotethattheimpedancementionedisthetotal

loadoftheamplierchannel,thismeansthatifyouconnectforexample3speakerswith8

ohmimpedance,youMUSTpushthebuttoninbecausetheloadontheamplieris8:3=

2.7 ohms. Use channel 1 impedance selector in case of bridge operation. In case of bridge

operationthisswitchmustbeputto4-8ohmoperationbecausetheminimumloadimpedance

inbridgemodeis8ohm.Lessthan8ohmsinbridgemodeisnotallowed!

11)Channel1balancedinputonNeutrikXLRconnector,thisconnectoriswiredinparallel

to

connector‘12’.Thisallowsyoutolinkthebalancedsignaltoanotheramplier.

12)Channel1balancedinputonNeutrikXLRconnector,thisconnectoriswiredinparallelto

connector‘11’.Thisallowsyoutolinkthebalancedsignaltoanotheramplier.

13)Channel1unbalancedinputoncinchconnectors:usethetoporbottomcinchconnectorto

applyanunbalancedsignalonchannel1.Theseconnectorsarewiredinparallel,thismeans

you can use the second connector as a signal link connector.

What is bridge mode ?

In bridge mode, you can unite the power of 2 small ampliers into 1 giant amp.

The resulting power usually is more than double the power of both ampliers used

individually with the same load. There is a simple reason for this power boost:

because the speaker load is wired to the channel’s positive (hot) connectors, the

ampliers ‘feel’ half of the actual speaker’s impedance. This means that, despite

the fact that you connect for example an 8 ohm speaker, the amp thinks there is a 4

ohm load, resulting in higher power output per amplier, and since both ampliers

work in bridge mode, this increased power is doubled. As a result, the minimum load

impedance in bridge mode is limited to 8 ohms, because every amplier only ‘feels’

half of this impedance. Set the speaker impedance selector of channel 1 to the 4-8

ohms position for 8 ohms(or higher) loads in bridge mode.