 Re: What should I set the crossover for M60 v2 at?
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Joined: Aug 2006
Posts: 43
buff
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OP
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Joined: Aug 2006
Posts: 43 |
Quote:
Its always better to use a reference disc like Avia. Besides level adjustment it has some good phase tests so you can also make sure the phase switch and level on the sub is optimized with the speakers.
In setting the crossover its important to remember you are trying to find the frequency which yields the smoothest response between the speakers and the sub. The room and position of the sub and speakers will be an significant factor in where that will be. A good place to start would be a half octave above the +/-3db low extension which in the case of the 60s is around 1.5 x 37hz or 55-60hz.
I like to use single sine wave tones 10hz on either side of the crossover or alternatively the LF sweeps available on the Avia disc in the verification section. You're aiming for the crossover point with the least volatility on the metre. Also check at 50hz, 70hz and 80hz, It will vary depending on where you have your sub positioned and your unique room acoustics. When you finally settle on crossover frequency, adjust the phase so you get the highest SPL then go back and recheck the measurements for the crossover to make sure.
Here is one of the better articles on using the RS metre and Avia to calibrate speakers and sub. http://www.bigpicturebigsound.com/article_560.shtml
Thanks, I appreciate those advice that you gave me and a very helpful link, although I'm trying my best to understand everything  
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Re: What should I set the crossover for M60 v2 at?
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Joined: Oct 2005
Posts: 853
aficionado
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aficionado
Joined: Oct 2005
Posts: 853 |
That Avia disc can be alot to digest at first but it has excellent references for speakers, subs and displays. Just ask for more clarification if you need it. There are many knowledgable and friendly people here who will be glad to help. 
John
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Re: What should I set the crossover for M60 v2 at?
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Joined: Apr 2005
Posts: 552
aficionado
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aficionado
Joined: Apr 2005
Posts: 552 |
I have read your posts about setting the speakers to "small" or "large", I found the crossover settings on my receiver Onkyo 804 for each individual speaker, but nothing about small or large. Also, what is the best X'over for the sub? thanks
Axiom M60s, QS4s, VP100 Onkyo TX-SR804 Oppo 970HD
Rotel RB-1080/RCD-1072 REL Q150E sub, PS 3
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Re: What should I set the crossover for M60 v2 at?
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Joined: May 2002
Posts: 5,745 Likes: 17
axiomite
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axiomite
Joined: May 2002
Posts: 5,745 Likes: 17 |
Quote:
I have read your posts about setting the speakers to "small" or "large", I found the crossover settings on my receiver Onkyo 804 for each individual speaker, but nothing about small or large. Also, what is the best X'over for the sub?
This varies, one of two ways.
Set the crossover for the sub using the receiver at whatever values are available (e.g. 50hz, 60hz). 80Hz is the common standard. Then turn up the crossover knob on the sub all the way.
Or, set the M60s to large and use the sub crossover knob to blend the bass sound to where it sounds best for you. I've found with the M60s that a value around 50-55Hz is a good starting point. This is also around the point where the M60s begin to drop off in lower end volume. Coincidence? Not really.
"Those who preach the myths of audio are ignorant of truth."
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Re: What should I set the crossover for M60 v2 at?
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Joined: Apr 2005
Posts: 552
aficionado
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aficionado
Joined: Apr 2005
Posts: 552 |
By large, you mean "Full Band"? That's what I get at my receiver's Speaker configuration menu for the fronts. It is a number of frequencies 50, 60, 70, 80 and more HZ) and then "Full Band".
Axiom M60s, QS4s, VP100 Onkyo TX-SR804 Oppo 970HD
Rotel RB-1080/RCD-1072 REL Q150E sub, PS 3
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Re: What should I set the crossover for M60 v2 at?
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
Joined: May 2002
Posts: 10,654 |
Skerdi, the 804 doesn't use the common "large/small" terminology; instead it uses "full band" for sending all frequencies to that speaker, which is the same as setting it "large". If, on the other hand, you set a crossover frequency for that speaker(which rolls it off below that frequency and sends the sounds to the sub instead), this is the same as setting it "small". There's no separate crossover setting required for the sub because setting the crossover frequencies for the speakers automatically sends the frequencies below those settings to the sub. The most commonly suggested setting is 80Hz, since regardless of the bass capabilities of the speakers involved, 80Hz is a good compromise; it's high enough to take a substantial bass load off of the speakers but not so high as to make the sub easily localizable.
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Enjoy the music, not the equipment.
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Re: What should I set the crossover for M60 v2 at?
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Joined: Apr 2005
Posts: 552
aficionado
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aficionado
Joined: Apr 2005
Posts: 552 |
My subwoofer, Rel Q150E Subwoofer , as you can see from the setup link has two types of connections, high-pass and the regular Low-pass (LFE). I have used the high pass so far with my stereo system (see sig below), and they suggest I use both with HT. To do this, they require setting the mains to "large", which means "full band" with Onkyo language. If this is the case, how would I set the sub crossover at the receiver? I know I have to adjust the crossover knob at the subwoofer. Sorry for naive questions, but this is my first real HT setup. I've only owned a stereo system before, as well as Sony HTIB.
Axiom M60s, QS4s, VP100 Onkyo TX-SR804 Oppo 970HD
Rotel RB-1080/RCD-1072 REL Q150E sub, PS 3
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Re: What should I set the crossover for M60 v2 at?
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
Joined: May 2002
Posts: 10,654 |
Skerdi, again there is no receiver sub crossover setting on the 804 when the "full range" setting is used. My suggestion is to disregard that REL suggestion and use the setup that nearly all sub makers consider to be the preferred method. Use the sub out from your 804 into the low level input of the Q150(use position 2 of Q150 mode switch). This bypasses its internal crossover network and uses the 804 crossovers, which can be set to appropriate values, and rolls off the REL output with precision, while relieving the M60s of having to carry the "full range".
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Enjoy the music, not the equipment.
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Re: What should I set the crossover for M60 v2 at?
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Joined: Apr 2005
Posts: 552
aficionado
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aficionado
Joined: Apr 2005
Posts: 552 |
Thank you John for the detailed reply. I see that you actually looked at REL settings. I appreciate it. I will take your advice. In addition, I will add the high-pass connection, since I can still do it with "full band" settings for M60s. It is probably a good solution especially for a two channel stereo. I will simply have to find the time to do it this weekend.
Axiom M60s, QS4s, VP100 Onkyo TX-SR804 Oppo 970HD
Rotel RB-1080/RCD-1072 REL Q150E sub, PS 3
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