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Jbl speakers high frequency - Mackie SRM-450 System

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My JBL soundbar starts making heavy bass sounds 10 minutes after I start playing music. how can I sort that?


Front and surround power amplifier section circuit fault. Mid and high frequencies loss. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Search the site by type in the "brand name" of your device, in the "Search box at the top right of the Homepage" to get gathered related posts

Nov 12, 2016 | JBL Audio Players & Recorders

1 Answer

Can't sync my JBL SB400 subwoofer to the soundbar??....it flashes blue and goes back to orange. Sound bar works but can't pair sub!..HELP!!


PAIRING THE JBL SB400 FOR WIRELESS OPERATION
After turning the soundbar and subwoofer on for the first time, you will need to "pair" the subwoofer and soundbar so they both operate at the same wireless frequency. To pair the units, press the Wireless Pairing switches on both units within 30 seconds of each other. The units will communicate with each other and operate at the same frequency.

May 21, 2015 | JBL Audio Players & Recorders

1 Answer

High frequency squeal jbl prx515 speakers


I have no answer, but I have the same problem. I bought them used for cheap, and I think this is exactly why.

Sep 10, 2012 | JBL PRX515 Speaker

1 Answer

I have a pair of jbl pxr 515 and both of them have a problem in which the lower end cuts off...im still getting the high end.....i have to push the input button a few times and they come back on


moz-screenshot-5.pngmoz-screenshot-6.pngmoz-screenshot-7.pngmoz-screenshot-8.pngmoz-screenshot-9.pngHi, problem can be solved..might not be able to really give you full help, cause the details you gave is not a 100% detail for me to give you a 100% answer.

I will give you possible solutions to the problems .

When a speaker does not give you low ends, it might be because the crossover controlling the output of the speaker(low).You will need to open up the speaker and test the fuse inside if speaker..

Also it depends on what the speaker is connected to, is it's an EQ or a Mixer, You can cut down high frequency from both the EG and Mixer.. i guess that will do..

And make sure you when ever you connect the speaker you use a mono jack or a speakon plug for good quality sound.

Hope it helped..

Feel free to pass on your comment ..

Thanks for using fixya...

Jan 10, 2011 | JBL PRX515 Speaker

1 Answer

Can we use the subwoofer as an amplifier for speakers? it has jacks for speaker in/out, but i can't figure out how to make it work because the speakers have no sound.


I don't believe this hookup is amplified; but, if you have used the regular unfiltered speaker connections from your receiver/amplifier to hookup the subwoofer, the system will pass the signal thru the outputs subject to the crossover adjustment on the back panel. You cannot get the full signal if your system is sending only the bass signal to the subwoofer. I have copied the instructions below from the manual. You would set the high freq crossover to the low end of your satellite's frequency range. The full manual is here: http://www.jbl.com/EN-US/Products/Pages/ProductSupportDetails.aspx?PID=PSW-D110

High-Pass Control
• If you hooked up your subwoofer
as shown in Hookup
3 on page 4, you also have
the capability of adjusting
the high-pass frequency.
The High-Pass control
determines the frequency at
which the main speakers
will start reproducing
sounds. If your main speakers
can comfortably reproduce
some low-frequency
sounds, also set this control
to a lower frequency
setting, between 50Hz –
100Hz. This will concentrate
the subwoofer’s
efforts to the ultradeep
bass sounds, while your
main speakers continue to
reproduce the mid-bass
information. If you are
using smaller bookshelf
speakers that do not extend
to the lower bass frequencies,
set the high-pass crossover
control to a higher setting,
between 125Hz – 180Hz.
With this setting, your main
speakers will not have the
burden of reproducing any
low-frequency sounds.
• If you hooked up your subwoofer
as shown in Hookup
1 on page 3, the high-pass
frequency is fixed at 180Hz.
• If you hooked up your subwoofer
as shown in Hookup
2 on page 4, there is no
high-pass control. Unless
your receiver/amplifier
incorporates a high-pass
crossover, your main speakers
will continue to get a
full-range signal.
Final adjustment and blending
of the low-pass and high-pass
controls may evolve over several
listening sessions. A good
starting point would be to set
both the low- and high-pass
controls to the same frequency
and adjust from that point.

Sep 07, 2010 | JBL PSW-D110 Speaker

1 Answer

Crossover to Es 100 to JBL 8400P. I have Harmon kardon 460 reciver?


setting Crossover frequency is trying to find the best frequency where the sub will see below that frequency and the es100 will see above that set frequency for maximum speaker efficiency.

8400P, i believe has a adjustable crossover frequency or cut frequency from 50-150Hz.

The e100 has a rated frequency response of 32Hz to 40kHz. So, the lows going to the sub, will allow the es100 to not have to handle deep bass frequencies.

So, I would suggest starting at 100Hz. That would mean your sub will be seeing roughly 100Hz and down, and the es100 will see roughly 100Hz and up.

Listen to your favorite music, and adjust accordingly.

Apr 05, 2010 | JBL Studio L 8400P Subwoofer

1 Answer

The high frequency driver doesn't work, the protective resin appears to be melted can you diagnose the problem?


Overloud... overheat... get a coil replacement for your HF driver and replace it. Just 2 wires to solder.

Dec 01, 2009 | JBL Speakers: CONTROL5 clearance Computer...

1 Answer

Trying to hook up jbl sr4732 speakers the highs are to loud compaird to the bass or lows. im only using a onkio with a 100 watt per speaker.


These JBL speakers are not made for a home stereo reciever. It could be part of the problem.

I do know that they have a high frequency input and a full range input on each speaker.

I am going to guess that maybe you have them connected to the high frequency input.

Are you using 1/4 inch jacks connecting to the input of the speakers?

I don't remember these speakers having a input for wires.

You may have another issue using these speakers with that reciever.

The JBL speakers are 4 ohms each, it is very likely that the onkyo requires 8 ohm speakers.

Look on the back of the Onkyo where the speaker jacks are at and see if it says anything about the minimum impeadance.

The impeadance is the ohms. Most home recievers are not designed for anything less than 8 ohms. Some are, but most are not.

Using 4 ohm speakers on a system that requires 8 ohm speakers can cause damage to the reciever. Mostly at higher volume levels, it will cause the reciever to overheat and shut off, maybe short out a channel. It pulls 2 times the amount of current thru the output transistors as 8 ohm speakers.

Let me know if this helps you or if you need more help.

Jun 18, 2008 | Audio Players & Recorders

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