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Post by megash0n on Feb 25, 2020 14:13:09 GMT -5
I wanted to get some opinions on this matter. I currently have (2) TC Sound 12" LMR-S subs in a separate, sealed boxes. I also have (4) 18" subs that I want to build a manifold for and place into the ceiling somewhat centered between my LR, but behind them 6 or so feet. My initial thought was to configure the center sub (RMC-1) to run these (4) 18s as LFE, and use the 12s in an appropriate area running as mono for the crossover stuff. So, there's the "how should they be configured conversation, along with room and main speaker integration conversation. I'm certainly a novice when it comes to measurements and using software like REW. I've read so much and watched many videos over the years about in room response and such, but I'm afraid I don't possess the real world experience and wisdom of such matters to really put it in practice. I will say that currently, I'm only using the two 12s on my back wall right next to each other. Everything sounds great, but I know with proper placement, alignment and polarity/phase, it could sound so much better. Btw, the 18s would be an infinite baffle. If you've never heard one of these before... They are pretty amazing, play extremely low, and will quiet frankly jiggle your appendages.
Thanks in advance for any advice or thoughts.
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DYohn
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Post by DYohn on Feb 25, 2020 14:42:20 GMT -5
FWIW, I use a set of 12" Adire Shiva-based systems in stereo for the front mains and a 4X15" Acoustic Elegance IB in my ceiling. They all run off the LFE channel of my processor with the XOver set to 120Hz, but the on-board amplifier Xovr for the IB is set to about 70Hz, and I only activate that amp when watching a movie that needs that sort of in-your-face low frequency reinforcement. Setting up an IB often requires programmable EQ or bass management separate from the main processor since you can't move it around the room.  |
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Post by megash0n on Feb 25, 2020 14:49:45 GMT -5
FWIW, I use a set of 12" Adire Shiva-based systems in stereo for the front mains and a 4X15" Acoustic Elegance IB in my ceiling. They all run off the LFE channel of my processor with the XOver set to 120Hz, but the on-board amplifier Xovr for the IB is set to about 70Hz, and I only activate that amp when watching a movie that needs that sort of in-your-face low frequency reinforcement. Setting up an IB often requires programmable EQ or bass management separate from the main processor since you can't move it around the room. I have a few different options for EQIng this stuff. I was just hoping with Dirac, I could have an all in one solution. My biggest fear is not understanding if everything is aligned and such. I feel like I understand completely when I watch videos, but 3 hours later using REW... I doubt myself. On a point you made though, I didn't think a sub designated as LFE, could participate in offloading below the crossover point for the rest of the speakers. This comment is in reference to the RMC-1. |
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DYohn
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Post by DYohn on Feb 25, 2020 15:15:38 GMT -5
I am not sure I know what you mean by this statement: "participate in offloading below the crossover point for the rest of the speakers. This comment is in reference to the RMC-1."
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Post by megash0n on Feb 25, 2020 15:56:56 GMT -5
I am not sure I know what you mean by this statement: "participate in offloading below the crossover point for the rest of the speakers. This comment is in reference to the RMC-1." ?? sorry, what I meant was, when you set a particular speaker to " Small", you set a crossover point. Everything below that goes to the subs. (Obviously there's a slope) |
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DYohn
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Post by DYohn on Feb 25, 2020 17:47:00 GMT -5
I am not sure I know what you mean by this statement: "participate in offloading below the crossover point for the rest of the speakers. This comment is in reference to the RMC-1." ?? sorry, what I meant was, when you set a particular speaker to " Small", you set a crossover point. Everything below that goes to the subs. (Obviously there's a slope) Yes, that's a processor function and depending on the system, it gets added to the LFE channel. I do not know how bass management in the RMC-1 is structured. |
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KeithL
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Post by KeithL on Feb 25, 2020 18:14:36 GMT -5
Bass management for a single subwoofer is structured the same in the RMC-1 as our older processors - and most others. (This is the same for the RMC-1, the RMC-1L, and the XMC-2.)
The LFE channel is sent to the sub (assuming you have a sub). For any other speakers set to SMALL the frequencies above the CROSSOVER FREQUENCY go to the speaker while those below the CROSSOVER FREQUENCY go to the sub.
The main difference is how we handle multiple subs. If you have ONE CENTER SUB it works this way.
If you also have the RMC-1 configured for LEFT/RIGHT subs you have a few more choices. One choice is to have all three subs treated as TRIPLE MONO (where the same content goes to all three). The other choice is to have the LFE information go to the CENTER SUB while the low frequency content from the other channels goes to the other two subs.
At the moment there is no option for left and right stereo subs (that feature, which is available on the XMC-1, may come back later).
There is also an "enhanced bass" option that allows low frequencies to ALSO be shared with large main speakers. (This is a less accurate option and we don't really recommend it.)
sorry, what I meant was, when you set a particular speaker to " Small", you set a crossover point. Everything below that goes to the subs. (Obviously there's a slope) Yes, that's a processor function and depending on the system, it gets added to the LFE channel. I do not know how bass management in the RMC-1 is structured. |
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Post by megash0n on Feb 25, 2020 18:31:50 GMT -5
Bass management for a single subwoofer is structured the same in the RMC-1 as our older processors - and most others. (This is the same for the RMC-1, the RMC-1L, and the XMC-2.)
The LFE channel is sent to the sub (assuming you have a sub). For any other speakers set to SMALL the frequencies above the CROSSOVER FREQUENCY go to the speaker while those below the CROSSOVER FREQUENCY go to the sub.
The main difference is how we handle multiple subs. If you have ONE CENTER SUB it works this way.
If you also have the RMC-1 configured for LEFT/RIGHT subs you have a few more choices. One choice is to have all three subs treated as TRIPLE MONO (where the same content goes to all three). The other choice is to have the LFE information go to the CENTER SUB while the low frequency content from the other channels goes to the other two subs.
At the moment there is no option for left and right stereo subs (that feature, which is available on the XMC-1, may come back later).
There is also an "enhanced bass" option that allows low frequencies to ALSO be shared with large main speakers. (This is a less accurate option and we don't really recommend it.)
Yes, that's a processor function and depending on the system, it gets added to the LFE channel. I do not know how bass management in the RMC-1 is structured. Thank you Keith. This is basically as I understood it. Given that I'm effectively talking about a single sub, 1 manifold with (4) 18" subs, and two sealed 12" subs, would it make sense to use LFE for the 18s and dual mono for the 12s. Or, to use the (2) 12s strategically place in the room to balance out the response better using triple mono? My concern is the 18s not meshing well with the 12s, but I haven't ran them all together before. This is all contingent upon what options I have using Dirac as well. I may have to use my MiniDSP instead. |
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Post by 405x5 on Feb 26, 2020 8:14:50 GMT -5
I wanted to get some opinions on this matter. I currently have (2) TC Sound 12" LMR-S subs in a separate, sealed boxes. I also have (4) 18" subs that I want to build a manifold for and place into the ceiling somewhat centered between my LR, but behind them 6 or so feet. My initial thought was to configure the center sub (RMC-1) to run these (4) 18s as LFE, and use the 12s in an appropriate area running as mono for the crossover stuff. So, there's the "how should they be configured conversation, along with room and main speaker integration conversation. I'm certainly a novice when it comes to measurements and using software like REW. I've read so much and watched many videos over the years about in room response and such, but I'm afraid I don't possess the real world experience and wisdom of such matters to really put it in practice. I will say that currently, I'm only using the two 12s on my back wall right next to each other. Everything sounds great, but I know with proper placement, alignment and polarity/phase, it could sound so much better. Btw, the 18s would be an infinite baffle. If you've never heard one of these before... They are pretty amazing, play extremely low, and will quiet frankly jiggle your appendages. Thanks in advance for any advice or thoughts. What kind of square footage are we talking about here? That’s an awful lot of subwoofer 🔊 Bill |
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Post by megash0n on Feb 26, 2020 9:36:11 GMT -5
I wanted to get some opinions on this matter. I currently have (2) TC Sound 12" LMR-S subs in a separate, sealed boxes. I also have (4) 18" subs that I want to build a manifold for and place into the ceiling somewhat centered between my LR, but behind them 6 or so feet. My initial thought was to configure the center sub (RMC-1) to run these (4) 18s as LFE, and use the 12s in an appropriate area running as mono for the crossover stuff. So, there's the "how should they be configured conversation, along with room and main speaker integration conversation. I'm certainly a novice when it comes to measurements and using software like REW. I've read so much and watched many videos over the years about in room response and such, but I'm afraid I don't possess the real world experience and wisdom of such matters to really put it in practice. I will say that currently, I'm only using the two 12s on my back wall right next to each other. Everything sounds great, but I know with proper placement, alignment and polarity/phase, it could sound so much better. Btw, the 18s would be an infinite baffle. If you've never heard one of these before... They are pretty amazing, play extremely low, and will quiet frankly jiggle your appendages. Thanks in advance for any advice or thoughts. What kind of square footage are we talking about here? That’s an awful lot of subwoofer 🔊 Bill It is. The room is 18x25x9.5 |
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Post by consul on Feb 26, 2020 11:31:59 GMT -5
Bass management for a single subwoofer is structured the same in the RMC-1 as our older processors - and most others. (This is the same for the RMC-1, the RMC-1L, and the XMC-2.)
The LFE channel is sent to the sub (assuming you have a sub). For any other speakers set to SMALL the frequencies above the CROSSOVER FREQUENCY go to the speaker while those below the CROSSOVER FREQUENCY go to the sub.
Keith, would you please explain the difference between LTE/Mono setting, if using only one Subwoofer (center)? I use 5.1.4 setup, both main front speakers are FULL, all others are SMALL. Best, Alexander |
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Post by consul on Mar 1, 2020 8:25:16 GMT -5
hi,
any chance to obtain some feedback to may question regarding "LTE"/"Mono" setting, if using only one Subwoofer (center)?
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Post by frenchyfranky on Mar 4, 2020 13:16:39 GMT -5
hi, any chance to obtain some feedback to may question regarding "LTE"/"Mono" setting, if using only one Subwoofer (center)? Alexander, The answer is already in Keith explanations, speakers set to small send frequencies below crossover point to sub, so obviously speakers set to large send nothing to sub. |
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Post by Jean Genie on Mar 4, 2020 14:17:43 GMT -5
hi, any chance to obtain some feedback to may question regarding "LTE"/"Mono" setting, if using only one Subwoofer (center)? Alexander, The answer is already in Keith explanations, speakers set to small send frequencies below crossover point to sub, so obviously speakers set to large send nothing to sub. Not necessarily. He also said, "There is also an "enhanced bass" option that allows low frequencies to ALSO be shared with large main speakers. (This is a less accurate option and we don't really recommend it.) " , I use a sub, via USP-1 with my maggies set to large and it all sounds wonderful, but I am an old dude and, technically speaking, I don't know sch**t from shinola. YMMV. |
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Post by frenchyfranky on Mar 4, 2020 14:46:44 GMT -5
Alexander, The answer is already in Keith explanations, speakers set to small send frequencies below crossover point to sub, so obviously speakers set to large send nothing to sub. Not necessarily. He also said, "There is also an "enhanced bass" option that allows low frequencies to ALSO be shared with large main speakers. (This is a less accurate option and we don't really recommend it.) " , I use a sub, via USP-1 with my maggies set to large and it all sounds wonderful, but I am an old dude and, technically speaking, I don't know sch**t from shinola. YMMV. Thanks I completely forgot this feature. |
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Post by consul on Mar 4, 2020 15:01:43 GMT -5
At he beginning I selected both "Sub = mono" and "enhanced bass".
The bass playback was really aggressive, therefore disabled encased bass seems to provide more natural setup.
I'm using a huge Velodyne DD15+ Subwoofer and trying to keep "mono" setting.
What Crossover Slope value 24dB or 12dB will be more suitable?
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Post by frenchyfranky on Mar 4, 2020 16:21:56 GMT -5
Try both to make yourself preferred, personally I don't hear difference between the two, 12dB must blend much smoothly and 24dB must be more radical.
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