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4. Output Setup

Xover Setup

During Xover Setup and Channel Selection, you will help the MS-8 conﬁgure the system. You

must enter information according to a speciﬁc sequence. If you make a mistake and need to

reenter information, you’ll have to reenter all the information that follows as well. Refer to the

conﬁguration chart you ﬁlled out during Installation to make this process easy.

During Xover Setup, None, 1 or 2 and 1 way, 2 way or 3 way refer to the number of MS-8

output channels that will be devoted to driving a particular set of speakers.

1 way

2 way

3 way

Full Range

Mid

Tweeter

Mid

Tweeter

Woofer

Select Sub (Subwoofer)

Select1) (None), (1) or (2), depending on the number of output channels that will be

devoted to driving a subwoofer or system of subwoofers.

Selecting 2) (None) moves the menu screen to Front. If you’ve selected (1) or (2), select a

Subsonic Filter frequency (20Hz–50Hz). We recommend 20Hz.

Select 3) Subsonic Slope (6dB–4dB/octave). We recommend 12dB/octave.

Select 4) Sub/Front Xover frequency between the Subwoofer and Front speakers

(50Hz–200Hz). We recommend 80Hz.

Select 5) Sub/Front Slope between the subwoofer and front speakers (6dB–24dB/

octave). We recommend 24dB/octave.

Select Front (Front Speakers)

Select (1) 1 way), (2 way) or (3 way), according to the diagram above in Xover Setup.

If there is no subwoofer, select 2) Front Hi Pass frequency (20Hz–100Hz).

Select 3) Front Hi Pass Slope (6dB–24dB/octave).

If you are using a two-way front4a) , select the Front Lo/Hi Xover frequency

(50Hz–10kHz) and Front Lo/Hi Slope (6dB–24dB/octave) between the midrange

and tweeter.

If you are using a three-way front4b) , ﬁrst select the Front Lo/Hi Xover frequency

(100Hz–10kHz) and Front Lo/Mid Slope (6dB–24dB/octave) between the woofer

and midrange. Next, select the Front Mid/Hi Xover frequency (20Hz–10kHz) and

Front Mid/Hi Slope (6dB–24dB/octave) between the midrange and tweeter.

Select Center (Center Speaker)

Select 1) (None), (1 way) or (2 way), according to the diagram above. If you selected

(None), skip to the next set of speakers: Side.

If you selected 2) (1 way) or (2 way), select Center Hi Pass frequency (50Hz–10kHz).

We recommend 80Hz.

Select 3) Center Hi Pass Slope (6–24dB/octave). We recommend 24dB/octave.

If you are using a two-way center, next select the4) Center Lo/Hi Xover frequency

(50Hz–10kHz) and Center Lo/Hi Slope (6dB–24dB/octave) between the and tweeter.

Select Side (Side or Rear Speakers)

Note: If you have side AND rear speakers, input the information for the side speakers here and

the rear speakers in the next step (Rear). If you have ONLY side OR rear speakers, input the

information for those speakers in this step (Side) and skip Rear.

Choose 1) (None) or (1 way). (Separate channels for tweeters are not available for side or

rear speakers).

Choose 2) Side Hi Pass frequency (50Hz–10kHz). We recommend 100Hz.

Choose 3) Side Hi Pass Slope (6dB–24dB/octave). We recommend 24dB/octave.

Select Rear(Rear Speakers)

If you have entered information for side speakers, and you’ll be using rear speakers as well, enter

the information for the rear speakers. If you are using only one set of speakers in the back of the

car or there are no speakers in the back of the car, select (None).

Choose 1) (None) or (1 way).

Choose 2) Rear Hi Pass frequency (50Hz–10kHz). We recommend 100Hz.

Choose 3) Rear Hi Pass Slope (6dB–24dB/octave). We recommend 24dB/octave.

If you need to make corrections, select the appropriate speaker location from the menu and

reenter the information. Then reenter all of the information that follows as well.

When you are ﬁnished with all ﬁlter settings, select Done.

Channel Selection

This menu assigns the outputs conﬁgured in the MS-8’s Xover Setup to speciﬁc output channels

by number. The menu will display only valid choices (according to the entries in Xover Setup).

Select the output channel based on the connections you documented in the output-channel

conﬁguration chart on page 2.

If a speaker or ampliﬁer is connected to Channel 1, select 1) Channel 1 from the Channel

Selection menu.

Select the appropriate speaker conﬁguration type for 2) Channel 1. Depending on the

entries in Xover Setup, the following choices may be available:

(FL) = Front Left (FR) = Front Right

(FL Hi) = Front Left High (FR Hi) = Front Right High

(FL Mid) = Front Left Midrange (FR Mid) = Front Right Midrange

(FL Lo) = Front Left Low (FR Lo) = Front Right Low

(Sub1) = Subwoofer 1 (Sub2) = Subwoofer 2

(Ctr) = Center (Ctr Hi) = Center High

(Ctr Lo) = Center Low

(SL) = Side Left (SR) = Side Right

(RL) = Rear Left (RR) = Rear Right

If a speaker or ampliﬁer is connected to Channel 2, select 3) Channel 2 and then select the

appropriate conﬁguration from the list that appears in the display.

Repeat the procedure for the other channels to which a speaker or ampliﬁer is connected. 4)

If you make a mistake, select the channel that you want to correct, and then enter the

correct selection. The MS-8 counts the number of channels used and will not allow duplicate

entries. Check your entries carefully against the conﬁguration chart. Once you’re satisﬁed

that all is correct, select Done in the Channel Selection menu.

Output Diagnostics

This screen is provided to help you check your work before you proceed to Acoustic Calibration.

Select any of the displayed speaker locations to hear test noise through all of the channels

dedicated to that location. For example, if you’ve set up a three-way front system, selecting

Front Right will send test noise to the three channels you’ve designated as Front Right

(FR Hi, FR Mid and FR Lo). Listen carefully as you move through the speaker locations.

If you’ve made a mistake, correct your conﬁguration chart and press the Menu button to return

to the beginning of the Channel Selection menu. Then enter the all of the correct

information starting at the beginning. You may also correct the mistake by reconnecting the

RCA or speaker-wire connectors to the MS-8.

Once you’ve determined that all connections and selections are correct, select Done in the

Output Diagnostics menu. Speaker Configuration Complete will appear. Next,

select Continue.

Acoustic Calibration

In order to complete MS-8 setup, you must make acoustic measurements for the driver’s seating

position. You may also make acoustic measurements for up to three additional seats. For the

best results for you and a single passenger, be sure to make measurements in the driver’s and

passenger’s seats.

Connect the included binaural microphone to the input jack on the MS-8 labeled “Mic.” Carefully

route the microphone’s cable to the driver’s seat, leaving enough excess wire to accommodate

the movements of your head. Sit in the driver’s seat and place the mic headset on your head. Be

sure that the left and right microphones are on the correct ears!

MS-8 Crossover Conﬁgurations

0200CSK - JBL MS-8 Quick Start Guide Inlay.indb 6 08/03/10 15:22:41