C)Fade HF Front to Rear with
Required: a source unit or processor with front and rear pairs of stereo outputs.
Input Connections: one stereo pair of source unit
JOQVUTPGUIFW TFMFDUi4chwPOUIF
iInput ModewTXJUDIJOUIFiCH 1&2 Input Sectionw 5IFTFDPOETUFSFPQBJSPGTPVSDF unit outputs is connected to the CH 3&4 inputs of the 450/4v2. Connect the subwoofer amplifier inputs to the preamp outputs of the
W 4FMFDUiALLwPOUIFiSignal Fromw TXJUDIJOUIFiPreamp Output Sectionw
Result: with this option, the user has the ability to fade the HF signals from
D)Subwoofer Level Control Only
Required: a source unit or processor with left, right and dedicated subwoofer outputs.
Input Connections: The main stereo pair of source unit outputs is connected to the CH
JOQVUTPGUIFW TFMFDUi2chwPO UIFiInput ModewTXJUDIJOUIFiCH 1&2 Input Sectionw 5IFTPVSDFVOJUTEFEJDBUFE
subwoofer output is connected to the subwoofer amplifier inputs. In this mode, the 450/4v2’s preamp output is not used.
Result: with this option, the user has the ability to control the absolute level of the subwoofer channel relative to the HF channels, but cannot fade the front and rear HF channels relative to each other.
!
I M P O RTA N T
Set the CH 1&2 “Input Sens.” with the source unit’s subwoofer level control set at 3/4 of full output. See Appendix B (page 20) for details.
E)Front to Rear HF Fading and Subwoofer Level Control
Required: a source unit or processor with front and rear pairs of stereo outputs plus a dedicated subwoofer output.
Input Connections: one stereo pair (front, typically) of source unit outputs is connected to the CH 1&2 inputs of the 450/4v2. The second stereo pair of source unit outputs (rear, typically) is connected to the CH
JOQVUTPGUIFW TFMFDUi4chwPO UIFiInput ModewTXJUDIJOUIFiCH 1&2 Input Sectionw 5IFTPVSDFVOJUTEFEJDBUFE subwoofer output is connected to the subwoofer amplifier inputs. In this mode, the 450/4v2’s preamp output is not used.
Result: with this option, the user has the ability to fade the front and rear HF channels relative to each other and also has the ability to control the absolute level of the subwoofer channel relative to the HF channels.
!
I M P O RTA N T
Set the CH 1&2 “Input Sens.” with the source unit’s subwoofer level control set at 3/4 of full output. See Appendix B (page 20) for details.
Crossover Setup for
Once the input and preamp output sections have been configured appropriately, go to the
iCH 1&2 Filter Sectionw4FMFDUix1wPOUIF
iFreq. RangewTXJUDIiHPw IJHIQBTT POUIF i'JMUFS5ZQFwTXJUDIBOEi12dBwPSi24dBwPOUIF i'JMUFSMode/SlopFwTXJUDIBOEBOBQQSPQSJBUF iFilter Freq.w )[JTBHPPETUBSUJOHQPJOU 5IFiInfrasonic FilterwBOEiBass EQwGFBUVSFT
cannot be used in this mode.
/FYUUVSOZPVSBUUFOUJPOUPUIFiCH 3&4 Input SectionwBOETFMFDUix1wPOUIFiFreq. RangewTXJUDIiHPw IJHIQBTT POUIFiFilter TypewTXJUDIBOEi12dBwPSi24dBwPOUIFiFilter Mode/SlopewTXJUDIBOEBOBQQSPQSJBUFiFilter Freq.w BHBJO)[JTBHPPETUBSUJOHQPJOU
After proper adjustment of the 450/4v2’s CH 1&2 and CH 3&4, and the subwoofer amplifier’s
iInput RangewBOEiInput Sens.wZPVDBOGJOF
tune filter frequencies and slopes and attenuate either pair of channels to achieve proper balance.
'PSQSPQFSBEKVTUNFOUPGUIFiInput Sens.w
controls of the 450/4v2 use the method shown in Appendix B (page 22). For precise filter frequency information for the 450/4v2 refer to Appendix A (page 22). Refer to the subwoofer amplifier owner’s manual for proper adjustments.
This configuration requires a separate subwoofer amplifier with a
The separate amplifier will drive the subwoofer system with
GSFRVFODZPG)[UPTUBSU 5IFJOQVUTPG
the subwoofer amplifier will be connected to the preamp outputs of the 450/4v2 or to the source unit or
In this configuration, CH 1&2 of the 450/4v2 will drive
1)with
Input connection options for
A)Real
VOJU
Input Connections: the
W TFMFDUi4chwPOUIFiInput Modew TXJUDIJOUIFiCH 1&2 Input Sectionw 6TFB
Result: True left, center and right channels with
!
I M P O RTA N T
Set the subwoofer amplifier’s “Input Sens.” with the source unit’s subwoofer level control set at 3/4 of full output. Refer to the subwoofer amplifier owner’s manual for proper adjustment.
16 JL Audio - 450/4v2 Owner’s Manual | 17 |
