Yamaha 2500

[puertorro]

Has anyone figured out yet how to disable the xcros over in the Yamaha 2500? I would like to have the sub to handle the xcros over itself.

 

[MDS]

Setting subwoofer=No/Off will do it (same as every other receiver).

However, that may lead to unintended consequences...

If you want to use the subwoofer pre-out to feed the sub but you set Subwoofer=No, then no signal will be sent to the sub. Any speakers set to Small will get the bass below the xover sent to the mains. If you want the sub to be active and use its xover, then you would have to use a speaker level hookup to the sub from the main speaker outputs and then run speaker wire to the mains from the sub.

You could simply keep Subwoofer=Yes and set the xover frequency in the receiver as high as it will go (or at least above the level you will use on the sub itself but then you would have a hole in the frequency response. If you set it to say 150 Hz but have the sub xover at 80, you will have a hole between 80 Hz and 150 Hz because the sub will discard that range.

 

[Buckeyefan 1]

You could simply keep Subwoofer=Yes and set the xover frequency in the receiver as high as it will go (or at least above the level you will use on the sub itself but then you would have a hole in the frequency response. If you set it to say 150 Hz but have the sub xover at 80, you will have a hole between 80 Hz and 150 Hz because the sub will discard that range.

Adding to that, set all your speakers to "large," and LFE + Main. That should give all your speakers a full frequency, and allow your sub to crossover without any help.

 

[puertorro]

So, I guess that all these new receivers are pos since you just can't disable the xover and use the sub. Now, which setting would you consider to avoid a xover hole?

 

[Buckeyefan 1]

So, I guess that all these new receivers are pos since you just can't disable the xover and use the sub. Now, which setting would you consider to avoid a xover hole?

Are these the stats of your sub?

Driver Complement: Dual 12" IMGtm Woofers
Frequency Response: 25Hz to 120Hz
Crossover Frequency: Variable from 40Hz to 120Hz
Amplifier Power Output: 300 Watts RMS
Dimensions: 20.25 * 31.5 * 11.25
Weight: 72 lbs.

If the sub only goes to 120Hz, and you can set the Yamaha above 120Hz, and set the rest of the speakers to large, there shouldn't be an issue (or am I missing something?)

 

[puertorro]

That's my old sub stats which I still use once in a while. My new one is infinity sw12 which goes from 50-to 150hz. I think you'r right. Let me give it a try with the 2500 at 160hz and the sub at 150.

 

[MDS]

May I ask why you want to use the sub's xover instead of the receiver? The bass management features of a modern receiver are far more flexible and useful than limiting yourself to speaker level hookup to a sub (the only real way to do it).

 

[puertorro]

I have never hookup my sub to a level speaker. The line level is the way to go. What I don't like is that you always gonna have a hole between the new receiver and the sub. I still can't feel the sub shaking my chest. I gues that's my main concern. The thing is that with my old Onkyo 901 I didn't have that kind of problem using the sw 212. Any suggestion?

 

[MDS]

You won't have a hole if you use the bass mgmt of the receiver. Set the xover to whatever you want in the receiver and turn the sub's xover all the way up or disable it entirely if the sub allows that.

 

[puertorro]

When you mention bass management are you talking about the receiver xover?

 

[MDS]

Bass management in the receiver allows you to specify how and where to route the bass among your speakers and subwoofer. It includes the xover frequency and the 'size' settings for each individual speaker. Briefly, Large speakers get a full range signal and Small speakers get the bass below the xover routed to the sub instead of the speaker. There is an article on this site that goes through the basics.

 

[Sheep]

You need to find the point where your mains are loosing output in the bass region, then set the crossover in your reciever just above that, then make sure your subwoofer is set all the way up so no information is missed. Changing around the crossover is not going to get you chest shaking bass, thats the subwoofer itself, I think your a little mixed up.



The Sheep

 

[puertorro]

I have no problem with the bass management settings. Mains are set to large, center and sr are set to small. Bassout to swfr. Below are the mains specs:

Frequency Response: 29Hz - 27kHz
Crossover Frequency(ies): 500Hz, 5.5kHz
Sensitivity: 102dB (1 watt/1 meter)
Power Rating: 10 - 300 watts
Nominal Impedance: Compatible w/8 ohms
Woofer: 15" (381mm) polypropylene coated
Midrange Driver: TWO - 4.5" (114mm) polypropylene coated
Tweeter: 1" (25mm) high-output polycell

My only problem is the settings between the receiver and the sub. I just can't feel the tight impacts contrary to the sw212. When I use the sw212, I set the 2500 to 40hz and the sw212 xover to 120hz and you really notice the difference.

 

[AVRat]

Part of the problem is that the SW212 has 2 - 12" drivers and the SW12 only has one. You're definetely pushing more air with the 212 even with the less powerful amp for the deep impact.

The Infinity subs don't have a X-over bypass so you need to turn the X-over control all the way up to bypass it and use the bass management of the receiver. I would set all speakers to small with the X-overs set to 80Hz. The 15' drivers in the SM155 will still have plenty to do since they handle frequencies below 500Hz. This will also reduce some of the strain on the receiver amps to those channels.

Have you tried running the YPAO system to see how it sets up the configuration?

 

[puertorro]

Yes, I have tried both YPAO and manual. I'm gonna try your advice tonight. Let you know.

Tks.

 

[mnnc]

Yes, I have tried both YPAO and manual. I'm gonna try your advice tonight. Let you know.

Tks.

I see you are still tweeking the 2500...me too.

Hook the sub via sub out from 2500. Turn x-over on sub all the way up. Now, set x-over freq via the 2500. If sub max is 150hz then choose x-over freq at or below that via recvr. 150hz is most likely too high and I would suggest setting it at 90hz or 80hz as a reference point. Set mains,center, and surrounds to small. Yes, small on all five spkrs. This takes the burden off 2500 to power the bass freq's to mains and lets them really coast at lower freq's( 60-150 hz). Set bass-out to either sub or front and sub. Play some music and tweek subwoofer volume for a nice blend between it and mains. Now for example you set x-over to 80hz on the 2500...your main 5 spkrs will play all freq's down to 80hz and then freq's below that will be sent to subwoofer. So no gap! The only 'gap' you would get is if your sub goes as high as 150 and you set 2500 at freq higher than that. Besides that is typically way, way to high to set lfe/sub crossover. If you have mains which are capable of producing strong lower freq's (cleanly into the lower 40hz zone), then lower the 2500's x-over to 60hz and listen to that. And remember, not all music is going to go really low and give you that hit in the chest feeling. Much pop music bottoms about 40- 50hz which is not slamming you in the chest like a 30hz or lower thump from a movie or orchestra music.

Good luck.

btw...your 2500 still runnin hot as the devil? your fan ever work?

 

[puertorro]

Never heard my fan running. I've connected an extra "80mm" ac fan on top of it.