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I'd like to know how to set the crossover frequency on the sub.

Hello: Can you help me? I'd like to know how to set the crossover frequency on the subwoofer.I have 2 "Q series KEF IQ9" speakers and the Model "PSW 3500 Subwoofer".My receiver is a JVC RX-5000VBK which has a subwoofer output. When connected it sends (unknown frequency) bass frequencies to the subwoofer without affecting frequencies to the 2 main speakers. There is no crossover setting and according to JVC all frequencies are being sent to the IQ 9's.Since the IQ9"s go down to 38 Hz and the Sub's crossover frequency seems to start at 40 Hz should I just not set the crossover at all (?) or would setting it at the first or second LED light-I believe 50hz-- or-- 60hz allow for a smoother transition?(My other settings on the sub are "music" " slope 24b" " low pass" )Thank you,Irwin Rubin

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You set it to whatever sounds good to you.

Posted on Mar 18, 2017

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Posted on Jan 02, 2017

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SOURCE: very low ouput from subwoofer preout

Onkyo to Onkyo, sub/receiver, problem fixed by inceasing volume on receiver. Seems the sub audio input does not pick up LF's below a certain output level from the receiver. So, guess I have to live with that. I only hope my nieghbor in the apartment below me can too!

Posted on Apr 29, 2008

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SOURCE: Kube 2 subwoofer hum

The Kube Sub-woofer is earthed via its 3 pin plug. The Onkyo and other components I have in my system are not (they are double insulated). During normal operation, a difference in electrical potential can exist between these components in the system. I found that this potential was finding a path to earth via the audio cable and on through the subwoofer's earth. The path was via the earth portion of the audio cable and so gave the hum irrespective of volume levels set either on the Onkyo or the sub.

The fix is to ground the Onkyo to the sub. I used a length of electrical cable between a panel mounting screw on the back of the sub and a screw on the casing at the rear of the Onkyo. Try it out with a piece of cable manually touching screws with the bare ends of the cable until you find ones that give continuity( the hum will go immediately). I then crimped a small fork end electrical fitting onto each end of the cable which can be slid under the slighly loosened screw head and resecured. All I hear now is the fan on the Blu-Ray player!

Posted on Mar 12, 2009

  • 92 Answers

SOURCE: no output to subwoofer per-amp

you may have to go into the onscreen menu and enable it,that shuld work

Posted on May 20, 2009

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SOURCE: JVC RX-6042 Sub out not working, swaped sub cable

Check the setting on the receiver. Sub on and front speakers need to be set to small.

Posted on Nov 29, 2009

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SOURCE: I have an onkyo tx-8255

The problem is you are dealing with two different brands of speakers, I know because I ran into the same issues you are facing now, I had a Bose sub matched up with two Radio Shack Satellites and sound was not balanced it was awful. Finally I broke down and bought a pair of Bose Satellites and I have never regretted it since. The point I'am making is that when you mix brands the sound will be unpredictable, the problem with most subs is they have a very low roll off frequency even without the crossover making almost impossible to match speakers.

Posted on Feb 05, 2011

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1 Answer

What is a crossover an what does it do


Basically a crossover filters high and low frequency sound into separate bands and then only allows that band of frequency to reach the speaker! Uses are for feeding a sub woofer with low frequency sound and a tweeter with high frequency sound!

Nov 18, 2014 | Mansfield 3-WAY ELEC CROSSOVER: 3-WAY ELEC...

1 Answer

I have a velodyne f-1200r how do I hook up to other speakers


The simplest way is to connect both the left and right channel speaker wires from your amp or receiver into the speaker wire connections on the back of the sub labeled "From Amplifier"

Then connect speaker wires from the adjacent terminals labeled "To Speakers"

What you are essentially doing now is using the internal crossover of the subwoofer where you determine at what frequency the sub begins to blend with the other speakers.

This is done with the Crossover knob just above the speaker wire connections.

Whatever you have this set to, the main volume will now raise and lower the volume of the sub and main speaker together but you can still make the sub louder or softer as compared to the main speakers by using the subs volume control.

Defeat all tone controls on your preamp or receiver and use only the crossover knob and sub volume until you achieve a seamless blend where you cannot tell where the sub is and it is an extension of the speakers from where you will be sitting.

TIP:
DO not evaluate from the sub itself because the room shape and acoustics are drastically different everywhere ESPECIALLY when you are dealing with bass frequencies.

Can I assume you know how to set this?

May 31, 2014 | Audio Players & Recorders

1 Answer

Hi ive got like music playing through my 12 inch sub aswell as bass im pretty sure subs are just their for bass. ive changed RCA cables i dont know how many times new amp sub head unit and power n ground...


Hello..... I can help you with this problem. You need a crossover to remove all of the high and mid frequencies from the subwoofer. If you run the sub at "full range" (all frequencies), you will destroy the voice coil. If your amplifier has a crossover on it, put it in the "low pass" or "LP" setting. If your amplifier does not have a built in crossover, you will need to add one. A crossover can cost as little as $29 for an electronic one. This will fix your problem. If you have any other questions, just comment back and I will be glad to help you!

20 year car audio/video installer
Bay manager

Mar 27, 2011 | Car Audio & Video

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

My ma audio hk 898 will power on but will not push subs at all what can i do


Hello 76firebirdfo,

If there's no sound at all from the subs and you know they are good, there's probably no output from the amp. It's either wired incorrectly or it is defective.

If there's some sound but just not loud enough, then either the amp is not getting enough of an input signal from your head unit, or the amp settings are not adjusted properly. Adjust the crossover and gains for the best output to subs. LP filter on, crossover frequency at about 80-100Hz, and gain to maximum without distortion when head unit volume is at about 3/4 maximum.

Hope this helps.

Jul 14, 2009 | MA Audio Hard Kore HK-898 Car Audio...

1 Answer

Frequencies


Hello again ronnieyannon,

It's probably best to allow the amp that is powering the subs to control the frequencies going to the sub(s). I would not use the lpf on both the head unit and the amp in any case. The control settings are not completely precise and you could end up with a lot of tweaking between the units to get the sound you want. I'd send full range to the amp and with it playing something with a lot of bass, set the 401s to "LP", the crossover slope to near maximum, and then adjust the frequency until it sounded best to me. Starting on page 11 of your manual are the Rockford-Fosgate recommended adjustment procedures, including setting the gains and the filter frequency.

Those numbers for the lpf on your head unit sounds like it allows you to decrease (-24dB), as well as increase (+6dB) the bass at the specific frequencies of 50, 63, 80 and 100Hz. You probably don't want to decrease the bass boost for subs. And the 401s will allow a boost up to 12dB and is variable from 50-250Hz.

Hope this helps.

Apr 24, 2009 | Rockford Fosgate Punch 401S Car Audio...

1 Answer

No Signal on sub preout on my Onkyo TX-SR703 AVR


Well the next step would be to make sure that all the settings are set to subwoofer yes, and set your crossover as well.  The amp usually has a crossover which tells the microprocessor which frequencys to send to the sub.  

Jan 06, 2009 | Onkyo TX-SR703 Receiver

1 Answer

Crossover?


A crossover is a circuit that breaks down a whole spectrum of frequencies into groups. For example, your speaker has 3 individual speakers (drivers) in it. There is a woofer, mid and tweeter. A crossover will send the appropriate frequencies to each of the drivers. The woofer can not reproduce high frequencies so it doesn't make sense to send them there. The sam can be said for low frequencies and the tweeter. The crossover point defines the splitting point of the frequencies. Depending upon what sub-woofer you are using usually the crossover freqwuency is either 80 or 100. Most often it is 100.

Hope this helps,
Dan

Aug 20, 2008 | Onkyo TX-SR503 Receiver

1 Answer

How to adjust


hello . i think i can help ...u want to set your crossover points to 125Hz and for the subs if u want deep bass set them to 50 to 80Hz...try them and see what u like best

Jun 20, 2008 | Sony XM-2200GTX Car Audio Amplifier

2 Answers

Denon AVR 5803


If there is "large/small speaker" settings on your receiver, maybe you set speakers on Large. Some receivers, when set speakers to "large", won't redirect signal on subwoofer.

Oct 02, 2007 | Audio Players & Recorders

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