Sub woofer setting

[spikec]

You guys will make my day if you can shed some light on setting up my HT. Here's what I have:

Pioneer 1014
Velodyne vrp-1200 sub
7 Velodyne SPL 23 speakers (bought on clx from velodyne site)
Pioneer 578s univcersal player

The guy I spoke with at Velodyne said to set the crossover freq high 100 or 120, which I did through the 1014 menu. (I set it to 100 as the next choice was 150. This stuff is greek to me so I'm just blindly following what he said.)Anyway, there's also a knob on the back of the sub to set a crossover freq, starting at 80. Does this override what I put in the receiver? Where should it be set?

Fwiw, this amp and the speakers sound great together. Just trying to tweak it a bit...

Thanks for your help.

 

[flyv65]

I'm not familiar with your Pioneer gear, but I would think you should be able to disable (or set at the highest value) your sub's crossover, and run off the AVR. Since it seems your Velodynes are satellite speakers you should make sure you've set the speaker size correctly (small), also.

I've never experienced it, but I've heard that if you're not careful with your subwoofer settings you can cause "cascading crossover" which I'm told seriously screws with the volume output and your electronics.

Bryan...knock wood...

 

[sjdgpt]

The receiver's setting is feeding sound below 100Hz through the LFE to the sub. The 100 Hz is a crossover point and is controlled by the receiver. Using a higher (150 Hz) setting would result in more sound material being passed to the sub. Sound above 60/80 Hz (depending upon whom you ask) becomes directional, thus male voices and bass instrumments would sound as if the sound as coming from two distinct sources (which they would be). In other words, 100 Hz is most likely as high of setting as you should use.

The 80Hz setting on the sub would be normally used IF you did not use the receiver's built in crossover, instead, you feed a full spectrum sound signal to the sub and used the built in crossover to direct a portion of the sound to the sub, and the balance of the sound would be then directed to the main speakers, or wasted.

In theory, setting the sub at 80Hz could decrease the volume of sound between 80 and 100 Hz produced by the sub. This could be a good or bad thing, depending upon room acoustics and the amount of bass produced by the various speakers at those frequencies.

Hope this all helps.

 

[spikec]

Thanks. Easy to understand explaination of crossovers. The knob on the sub starts at 80 and goes up from there. Should I set it higher than 80?

 

[flyv65]

Thanks. Easy to understand explaination of crossovers. The knob on the sub starts at 80 and goes up from there. Should I set it higher than 80?

I'd set your sub higher than 100...do you know what the range is on your speakers?

 

[spikec]

Speakers:

Sensitivity 87 dB
4 ohm
Freq Resp 110Hz to 20 kHz

I might as well be typing Japanese...

 

[sjdgpt]

Thanks. Easy to understand explaination of crossovers. The knob on the sub starts at 80 and goes up from there. Should I set it higher than 80?

Yep. That way the entire LFE signal sent to the sub will be produced by the sub.

 

[Nick250]

Thanks. Easy to understand explaination of crossovers. The knob on the sub starts at 80 and goes up from there. Should I set it higher than 80?

Set the knob as high as it will go. Your reciever is now handling the cross over duties. Also with a good sub you would typically set all your speakers to small.

Nick

 

[sgtbyls]

Speakers:

Sensitivity 87 dB
4 ohm
Freq Resp 110Hz to 20 kHz

I might as well be typing Japanese...

thats very funny. Im the same way. I can read it but it could be written in german or something and it would mean the same thing to me.

 

[flyv65]

Speakers:

Sensitivity 87 dB
4 ohm
Freq Resp 110Hz to 20 kHz

I might as well be typing Japanese...

Okey dokey, here's a small issue-you're going to have a hole between 100Hz and 110Hz...but it might be No Big Deal. Typically, the human ear fills in the low spots, and even though your speakers are rated to 110 they'll still extend lower than that; maybe something like -6dB at 100Hz? If you can set the crossover in your receiver to 110 or 120 Hz try it and see if it sounds better than set at 100. You probably won't notice much of a difference unless you're watching a lot of Sam Elliot or James Earl Jones movies (male conversation is about 100 to 150 Hz; female about 180 to 250Hz [we won't get into instruments]).

Bryan...I'm a baritone, not a bass...

 

[spikec]

Thanks guys. I left the crossover set to 100 on the receiver, and turned the crossover knob on the sub all the way up. Sounds great. Hope you all have a Happy New year...

 

[annunaki]

You have noting to worry about with the speakers only going to 110hz and setting the crossover at 100. Chances are, that the system would only be -3.5db to -4db down at 100hz. Not a big deal. The subwoofer would more than make up for it being crossed over that high. My sub's crossover is at 60 hz.