466960
12
Zoom out
Zoom in
Previous page
1/48
Next page
10
Jumper Group Function
Although recommendations are made for the most common system types in the following
pages, there are actually over 1000 unique and useful jumper combinations available for a
wide variety of vehicles, installations and personal tastes. While this flexibility has obvious
advantages, too many choices can also be confusing. Therefore, it will be helpful to under-
stand the function of each jumper group in order to tune the network more effectively:
TW-HP:
In addition to functioning as a high-pass filter, this section also provides the necessary
adjustments for proper integration with the midrange. The transition between these two
drivers in the frequency and time domains is essential to the total performance of a
multi-element system, as it has a direct effect upon imaging, staging, focus
and tonal balance. In real world installations, distance and angle of both drivers relative
to the listener, their proximity to each other, and certainly the vehicle's interior also exert
additional influence. In anticipation of this, variations of filter slope, Q, cut-off frequency
and resultant phase shift are provided so that "phase linkage" and flat summation can
be maintained. As a general reference, the layout and available filter types of the tweeter
high-pass section are provided below:
TW LEVEL:
In general, this section provides precise level adjustment for optimum performance or
personal taste. However, it also allows for tilting of the filter frequency response in
order to compensate for the natural high frequency roll-off associated with off-axis lis-
tening angles. In other words, this jumper choice will have a direct effect on both Q and
cut-off frequency of the various filter combinations listed above. This effect can be seen
in the filter transfer function graphs for the various system types. If the TW-HP section is
set to bypass in favor of an electronic crossover, the off-axis feature will no longer func-
tion, but basic level adjustment will still be possible.
R1 = 1.5
R2 = 3.3
R3 = 4.7
R4 = 5.6
R5 = 0.5
C1 = 3.3µF
C2 = 8.2µF
L1 = 0.65mH
L2 = 0.1mH
HP-1
HP-2
BYPASS
+1.5dB/15°
0dB/0°
1.5dB
3dB
L1 L2
R4
R1
R2
R3
C1
C2
R5
+4dB/30°
HP-3
+
+
1
st
Order:
No HP jumpers
HP3
2
nd
Order:
HP1 + HP2 + HP3
HP1 + HP3
HP2 + HP3
3
rd
Order:
HP1
HP2
HP1 + HP2
12


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 Alpine SPX-Z18T 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 Alpine SPX-Z18T in the language / languages: English, French as an attachment in your email.

The manual is 1,59 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