167517
15
Zoom out
Zoom in
Previous page
1/19
Next page
15
4) Input Sensitivity Control
Turn control all the way counterclockwise (minimum position). In this position, the amplifier will be less sen-
sitive to the input signal from the head unit. Slowly rotate this control clockwise until maximum undistorted
playing level is heard from the subwoofer(s). Listen closely for faults such as bottoming from the subwoofer(s).
If fault is detected, rotate Input Sensitivity control counterclockwise until fault is eliminated. At this point,
the maximum undistorted subwoofer playing level has been defined.
5) Lowpass Crossover Control
Move the selector switch to “ON.” In this setting, lowpass signal is sent to the speaker outputs. Experiment
with the crossover point setings while the subwoofer is active. A higher setting will increase the perceived
output, and a lower setting will make the bass response more omnidirectional. Find the balance between
the two that works best for the vehicle.
6) Phase
Subwoofer phase is relative to the front loudspeakers. Correct electrical phase does not always mean
correct acoustic phase. Swap positive (+) and negative (-) connections at the speaker outputs where the
subwoofer is connected to the amplifier. It is beneficial to listen to the subwoofer connected in both phase
conditions. The subwoofer should be left in the condition in which the strongest bass response is noted.
Setup Tuning—Subwoofers (cont.)
2) Head Unit
The head unit should have all controls such as bass, treble, balance, and fader
set to the flat or centered position. The volume control should be at the
minimum setting. If the head unit has any equalization or bass management
features such as boost, they should be deactivated at this time. Turn head unit
on, and verify that the GREEN status LED is lit on the amplifier.
3) Volume
With the chosen musical track playing, turn the head unit volume control up until the maximum level of
undistorted signal is heard from the speakers. For most head units, this will be at the end of the volume
control range.
WARNING! A distorted signal from the head unit sent to the amplifier can cause loudspeaker failure at
higher listening levels!
Downloaded from www.Manualslib.com manuals search engine
15


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Boston Acoustics gt 20 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Boston Acoustics gt 20 in the language / languages: English as an attachment in your email.

The manual is 0,69 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info