JBL SYNTHESIS SDA8300 System Installation Manual

13 | J B L S y n t h e s i s S D A 8 3 0 0 / S D A 4 6 0 0 S y s t e m G u i d eAs you will see below the SDA amplifiers are highly flexible and can beused in many different system configurations. Only your creativity infinding ways to use them is the limit. As always we recommend having asmuch available power for the greatest system headroom and lowestdynamic distortion possible.SDA4600 Configuration 1 with Alternate Digital Inputs (600W x 4)These alternate inputs could be used when a pair of Left and Right speakersare being used with a dedicated 4-channel amplifier to power them. Thiscould also be used to “double up” on subwoofer channels, for example, ifthere is one amplifier being used as a bridged high power amplifier for two(2) subwoofers and a second amplifier being used with four (4) smalleramplifiers mounted in pairs. This is common in large rooms where a pair ofhigh power 18” passive subwoofers are in the front and 2 pairs of smaller in-wall passive subwoofers are used in the rear, but mounted in groups of twowhere you would want to treat the groups as a single subwoofer. Thisconfiguration could be used with an SDA8300 in either Factory configuration1 (for Center and Surround channels) or in combination with SDA 8300Configuration 3 and SDA4600 Configuration 2 or 3 for Center Channel asshown in the next section . Common speakers to be used with thisconfiguration would include Project Array, any speaker that can be bi-wired(passive bi-amplification), K2, M2, Everest, SAM1HF/SAM2LF and othersimilar speakers.A good use of this would be to have the Left and Right speakers on anamplifier using Configuration 1; while the Center channel uses a separateamplifier in Configuration 2 or 3 as shown at right.CONFIGURATION 1 (4x600Watt) AMP CHANNEL “BLU” Digital In CHSUB 1 1 1SUB 2 2 2SUB 3 3 3SUB 4 4 4Alternate ChannelsLEFT LOW 5LEFT HIGH 6RIGHT LOW 7RIGHT HIGH 8SDA4600 Configuration 2 with Alternate Digital Inputs (1200W x 2)This configuration could be used with either a LEFT channel or CENTERchannel where a dedicated 2-Channel amplifier is being used. For example,if you have installed a large front speaker that can be bi-amplified and theinstallation requires the best possible dynamic headroom. Commonspeakers to be used with this configuration would include K2, M2, EverestSAM1HF/SAM2LF and other similar speakers.CONFIGURATION 2 [2x1200Watt] AMP CHANNEL “BLU” Digital In CHSUB 1 1 + (BRIDGED) 12 + (BRIDGED)SUB 2 3 + (BRIDGED) 24 + (BRIDGED)Alternate ChannelsSUB 3 3SUB 4 4LEFT LOW 5LEFT HIGH 6CENTER LOW 7CENTER HIGH 8SDA4600 Configuration 3 with Alternate Digital Inputs (1200W x 2)This configuration could be used with either a RIGHT channel or CENTERchannel where a dedicated 2-Channel amplifier is being used. For example,if you have installed a large front speaker that can be bi-amplified and theinstallation requires the best possible dynamic headroom. Commonspeakers to be used with this configuration would include K2, M2, Everestand other similar speakers.CONFIGURATION 3 [2x1200Watt] AMP CHANNEL “BLU” Digital In CHSUB 3 1 + (BRIDGED) 12 + (BRIDGED)SUB 4 3 + (BRIDGED) 24 + (BRIDGED)Alternate ChannelsSUB 1 3SUB 2 4RIGHT LOW 5RIGHT HIGH 6CENTER LOW 7CENTER HIGH 8

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