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#1 of 5 Pete Bishop

Pete Bishop

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Posted July 02 2004 - 04:16 AM

I just set up my HT. There are a lot of things I don't understand. Here is a list of questions I need answered:

Subwoofer:

1. Instead of using the hardware on the sub for things like crossover and phase, my receiver took that function over automatically. Is that right?

2. What is Phase and how do I determine whether or not to reverse it?

3. How do I know what to set the crossover to? I have my receiver set to have the bass out on my sub and my 2 fronts. For some reason my fronts didn't sound very full when I had the bass directed to just the sub. However, in order for the fronts to sound good, I have to set the crossover for at least 80hz. I didn't notice a difference in how low the bass sounded on the sub from 40hz to 80hz. Am I doing this right? What is the ideal way to set this up?

4. When I used the YPAO system on my Yamaha, it set the DB on the sub pretty low. I adjusted the sub up to 7db while the rest of my speakers are at about 3 to 4 db. Does this sound right? I don't have the sub too Loud?

5. On my old receiver, the volume I kept my system at read between -40db and -35db. On my new receiver, at the same volume I like, it reads between -15db and -10 db. Is something wrong here or is it just different because it is a different brand reciever?

#2 of 5 Daman

Daman

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Posted July 02 2004 - 05:28 AM

Pete Posted Image am not an expert but can share my experience because i too recently upgraded from my previous yamaha to htr 5790

Quote:
Instead of using the hardware on the sub for things like crossover and phase, my receiver took that function over automatically. Is that right?

The manual recommends to set the crossover at around 80hz and volume at halfway on the sub before running ypao.. my reciever also automatically set up the cross over and im happy with the sound, try to fiddle around and see what sounds best to you in case you are curious, i did that and didnt like it much so stuck with reciever settings


Quote:
What is Phase and how do I determine whether or not to reverse it?

Have a friend switch the phase switch while you sit at listening position and set the switch where you seem to get more and cleaner bass..

Quote:
When I used the YPAO system on my Yamaha, it set the DB on the sub pretty low. I adjusted the sub up to 7db while the rest of my speakers are at about 3 to 4 db. Does this sound right? I don't have the sub too Loud?

Same thing happened with me, i too felt the bass lacking so i manually adjusted it from volume control switch on my sub to my liking..

Quote:
On my old receiver, the volume I kept my system at read between -40db and -35db. On my new receiver, at the same volume I like, it reads between -15db and -10 db. Is something wrong here or is it just different because it is a different brand reciever?

Again, i too used to listen at -40 to -35 dB on my previous HTR 5650 but on the 5790 im listning between -25 to -18 dB or so..so i guess you are not the only one experiencing this.Wonder why that is though.. probably might have something to do with YPAO setting freq response to flat through the room which wasnt the case with the earlier reciever..


#3 of 5 John Garcia

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Posted July 02 2004 - 05:34 AM

1) No, the crossover IS handled by the receiver, and you can adjust volume on both the receiver and sub. Turn the sub's x-over all the way up or disable it. (What sub?)

2) Phase is normally left at 0, but you should flip it between 0 and 180 to see if there is a difference, leave it on the one that is louder. If there is no difference, leave it on 0. This is typically used when you have an overlap in sound between the mains and sub, in case of phase cancellation.

4) Turn the gain on the sub up a little, and down on the receiver a little to balance it out a bit more. If it sounds good to you, and isn't bottoming out, leave it. You determine x-over by the low extension of your other speakers, the x-over should be set at one or less than one octave above the -3dB of the speaker. If that is 50Hz, then you would set the x-over at either 80Hz or 100Hz, whichever sounded best.

5) The volume numbers from one manufacturer to another, and even between different models of the same brand, do not correspond, so don't use this to compare.
HT: Emotiva UMC-200, Emotiva XPA-3, Carnegie Acoustics CSB-1s + CSC-1, GR Research A/V-1s, Epik Empire, Oppo BDP-105, PS4, PS3,URC R-50, APC-H10, Panamax 5100 Bluejeans Cable
System Two: Marantz PM7200, Pioneer FS52s, Panasonic BD79
(stolen) : Marantz SR-8300, GR Research A/V-2s, Sony SCD-222ES SACD, Panasonic BD-65, PS3 60G (250G)

Everybody is a genius, but if you judge a fish by its ability to climb a tree, it’ll spend its whole life believing that it is stupid.” – Albert Einstein

 


#4 of 5 Pete Bishop

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Posted July 02 2004 - 07:14 AM

Quote:
the x-over should be set at one or less than one octave above the -3dB of the speaker. If that is 50Hz, then you would set the x-over at either 80Hz or 100Hz, whichever sounded best.


How do I determine the -3db of my speakers? Also, how do I determine octaves?

#5 of 5 John Garcia

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Posted July 02 2004 - 11:38 AM

Sorry, I didn't give enough info. -3dB of your speaker is the specs that the manufacturer reports, so if the specs are: 40-20Khz, then those are assumed to be the -3dB figures. What speakers? You should be able to look your speakers up online for the specs.

An octave is basically a doubling of the frequency range, for all intents and purposes (human hearing range) starting at 20Hz-40Hz, 40-80, 80-160, etc...
HT: Emotiva UMC-200, Emotiva XPA-3, Carnegie Acoustics CSB-1s + CSC-1, GR Research A/V-1s, Epik Empire, Oppo BDP-105, PS4, PS3,URC R-50, APC-H10, Panamax 5100 Bluejeans Cable
System Two: Marantz PM7200, Pioneer FS52s, Panasonic BD79
(stolen) : Marantz SR-8300, GR Research A/V-2s, Sony SCD-222ES SACD, Panasonic BD-65, PS3 60G (250G)

Everybody is a genius, but if you judge a fish by its ability to climb a tree, it’ll spend its whole life believing that it is stupid.” – Albert Einstein

 



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