Setting a Crossover For An Old Receiver

[Pogre]

I gave a buddy of mine my old Yamaha RX-V493 to power his new AA's with and he loves them. Now he's talking subwoofer. He's on a really tight budget and absolutely can't go any higher than $200. I suggested either the Dayton 1200 or the 1500. If there's anything better on such a tight budget I'm all ears, but sub aside for now...

I'm trying to figure out how to set a crossover point of 80hz and I don't think it's possible? This is from the owner's manual:

"SUBWOOFER OUTPUT terminal
This terminal is for connecting with the input terminal of an
amplifier for driving a subwoofer.
When the input signals to this unit are in normal 2-channel
stereo, this terminal outputs only frequencies below 150 Hz
from the main and center channels. When discrete signals are
input to this unit and are selected as the input source, this
terminal outputs signals from the subwoofer channel."

Click

Does that mean the speakers will play full range, or is that 150z a crossover or a low pass filter? Could he use the low pass on the sub to set a lower filter or would that just make matters worse?

*Edit: I just noticed the Daytons have high level in/outputs and a crossover setting on them.

 

[everettT]

I gave a buddy of mine my old Yamaha RX-V493 to power his new AA's with and he loves them. Now he's talking subwoofer. He's on a really tight budget and absolutely can't go any higher than $200. I suggested either the Dayton 1200 or the 1500. If there's anything better on such a tight budget I'm all ears, but sub aside for now...

I'm trying to figure out how to set a crossover point of 80hz and I don't think it's possible? This is from the owner's manual:

"SUBWOOFER OUTPUT terminal
This terminal is for connecting with the input terminal of an
amplifier for driving a subwoofer.
When the input signals to this unit are in normal 2-channel
stereo, this terminal outputs only frequencies below 150 Hz
from the main and center channels. When discrete signals are
input to this unit and are selected as the input source, this
terminal outputs signals from the subwoofer channel."

Click

Does that mean the speakers will play full range, or is that 150z a crossover or a low pass filter? Could he use the low pass on the sub to set a lower filter or would that just make matters worse?

*Edit: I just noticed the Daytons have high level in/outputs and a crossover setting on them.

IIRC the sub output is crossed at 90hz and then 159 is low pass. If the unit has main preouts you can use them with. subs internal crossover

 

[Andrein]

What is the source? Some players for instance also have bass management settings.

 

[Pogre]

IIRC the sub output is crossed at 90hz and then 159 is low pass. If the unit has main preouts you can use them with. subs internal crossover

It has preouts. I'm just not sure I completely understand how to hook it up. I've never used a sub's internal crossover before. Would I run the speaker cables from the rec to the high level inputs on the sub, then another set of cables from high level out of sub to main speakers?

 

[Pogre]

What is the source? Some players for instance also have bass management settings.

He's using his tv. He has a dac to convert the digital signal out (toslink) for the analog only inputs on the receiver.

 

[everettT]

It has preouts. I'm just not sure I completely understand how to hook it up. I've never used a sub's internal crossover before. Would I run the speaker cables from the rec to the high level inputs on the sub, then another set of cables from high level out of sub to main speakers?

I'd start with the sub out in the Yamaha and see if that crossover of 90hz works for him, if not use the main outs and use the subs crossover . If you use the sub out make sure you set the crossover on the sub to the highest level as not to combine e the internal with it.

 

[Pogre]

I'd start with the sub out in the Yamaha and see if that crossover of 90hz works for him, if not use the main outs and use the subs crossover . If you use the sub out make sure you set the crossover on the sub to the highest level as not to combine e the internal with it.

Will try using sub out first for sure and turn the sub crossover setting all the way up. The manual states the sub channel "outputs only frequencies below 150 Hz from the main and center channels.". Does that mean the receiver automatically sets a crossover at 150hz? Seems a bit high. If it's 90hz I'm sure that would be very acceptable.

By main outs, do you mean the preouts or high level outputs? I have never used a sub's internal crossover and need a "for dummies" explanation.

 

[everettT]

Rca preouts for mains, they are full range so if your use those to sub, them use the crossover dial on the plate amp to set it to the desired point. If you use the sub preout from the Yamaha, it has a fixed crossover of 90hz from the Yamaha.

 

[everettT]

Ok a quick look at the rear panel, there is no main outs I see just sub. So your limited to the sub out or using speaker level. What speakers is he using?

 

[Pogre]

Rca preouts for mains, they are full range so if your use those to sub, them use the crossover dial on the plate amp to set it to the desired point. If you use the sub preout from the Yamaha, it has a fixed crossover of 90hz from the Yamaha.

Thank you Everett! I believe using sub out will work just fine. Appreciate your replies.

 

[Pogre]

Ok a quick look at the rear panel, there is no main outs I see just sub. So your limited to the sub out or using speaker level. What speakers is he using?

He just got the AA Monitors from Dennis (with me nudging him). I thought it had a full set of preouts, but I was mistaken. It only has cc, sub and rear speaker outs.

That's the actual receiver I sent him. Either way, I do think sub out will work just fine. 90hz isn't too far off the mark.

 

[everettT]

He just got the AA Monitors from Dennis (with me nudging him). I thought it had a full set of preouts, but I was mistaken. It only has cc, sub and rear speaker outs.

View attachment 21760



That's the actual receiver I sent him. Either way, I do think sub out will work just fine. 90hz isn't too far off the mark.

That's the ticket!

 

[KEW]

I'd start with the sub out in the Yamaha and see if that crossover of 90hz works for him, if not use the main outs and use the subs crossover . If you use the sub out make sure you set the crossover on the sub to the highest level as not to combine e the internal with it.

I don't follow. The manual as quoted by Pogre states that the sub get a 150Hz low-pass signal. Where do you get the 90 Hz info from? Is there a switch or setting in the menu to control this?

150Hz is the type of setting you might see on a HTiB with mini-cube speakers.

You should get in touch with Dennis (his email off of his website is usually the best way, or maybe phone) and ask him where to set the crossover to match the natural roll-off of his speakers. I'd guess it will be somewhere around 60Hz, but it will be far enough below the 150Hz roll-off that you needn't worry about much interaction of the roll-offs.

I have heard and can recommend the SUB-1200. If he is in a larger room or into HT, the 1500 may be a better option, but the 1200 is great in a medium sized room (bigger than typical BR like a LR that is not a great room or open to other rooms).

For Parts Express:

Enter P2GQ37 at checkout for $10 OFF Orders $100+. Expires 9/30/17

When I set up a sub without AVR bass management, I play music with a good bass line. Start with the sub's volume turned down and play music at normal listening level. Gradually turn the sub up. First you will hear the lower frequencies filling out, but it is unclear that the sound is coming from the sub. Keep turning up the sub until you can hear the sound is coming from the sub. I find this threshold is a good starting point. Of course you are at the sub when you are adjusting the volume, so you will not hear sound coming from the sub at the listening position.

Of course, guys are guys, and he may want to just crank the sub for $hits and grins for a few day up front. Once he is ready to move on, then the above process gives him a starting point from which to fine tune (or a decent "set and forget" setting if that is his nature).

 

[everettT]

I don't follow. The manual as quoted by Pogre states that the sub get a 150Hz low-pass signal. Where do you get the 90 Hz info from? Is there a switch or setting in the menu to control this?

150Hz is the type of setting you might see on a HTiB with mini-cube speakers.

You should get in touch with Dennis (his email off of his website is usually the best way, or maybe phone) and ask him where to set the crossover to match the natural roll-off of his speakers. I'd guess it will be somewhere around 60Hz, but it will be far enough below the 150Hz roll-off that you needn't worry about much interaction of the roll-offs.

I have heard and can recommend the SUB-1200. If he is in a larger room or into HT, the 1500 may be a better option, but the 1200 is great in a medium sized room (bigger than typical BR like a LR that is not a great room or open to other rooms).

For Parts Express:


When I set up a sub without AVR bass management, I play music with a good bass line. Start with the sub's volume turned down and play music at normal listening level. Gradually turn the sub up. First you will hear the lower frequencies filling out, but it is unclear that the sound is coming from the sub. Keep turning up the sub until you can hear the sound is coming from the sub. I find this threshold is a good starting point. Of course you are at the sub when you are adjusting the volume, so you will not hear sound coming from the sub at the listening position.

Of course, guys are guys, and he may want to just crank the sub for $hits and grins for a few day up front. Once he is ready to move on, then the above process gives him a starting point from which to fine tune (or a decent "set and forget" setting if that is his nature).

All the early model Yamaha AVRs had a fixed 90hz crossover with the sub out . I can confirm this as I've owned and sold them. The manual was pretty much useless before 2003 for their AVRs