2) micro1000s w/ 1) LFE output

levlhed · 11-03-2009, 04:36 PM

I want to run two micropro 1000's off of my Onkyo SR806 which has 1 LFE output. Can I just run one RCA to the LFE-in of one sub, and then chain another RCA from the Line Out of that one into the LFE in on the second sub?

That is to ask, does the line-out pass whatever is put into the LFE input?

concealer404 · 11-03-2009, 04:38 PM

I usually prefer to get an RCA-splitter...

levlhed · 11-03-2009, 04:40 PM

I don't want to run 2 long cords through my wall and I don't want to split the signal.
I'd rather run only one long cable and one shorter cable between the two and not split the signal if it works.

Matt34 · 11-03-2009, 04:50 PM

I don't think you can dasiy chain(salve) the micro-pros like you can say the JL audio subs. A spilter will not degrade the signal.

I could be wrong in regards to the slave ability as I'm on my BB and can't confirm.

levlhed · 11-03-2009, 04:58 PM

certainly the line out would at least pass the line in, right?
Otherwise what is the line out for?

I suppose it's possible that the line out would be passing the line in, but not pass the LFE in. In that case I'd run it that way and keep the crossovers inline. It'd be preferable to bypass the crossovers though since they are not needed.

Splitting a signal *does* degrade the signal.
It may not be a readily-audible degradation, but there's no way it doesn't degrade.

dorokusai · 11-03-2009, 05:20 PM

I believe it's about 3db of signal loss depending on the cable used....as a rough rule. It shouldn't be a problem.

Matt34 · 11-03-2009, 05:41 PM

Like dorko said, you will lose signal strength which can be compensated for through gain controls but there should be no audible lose in quaility.

levlhed · 11-03-2009, 05:44 PM

Yes, I get it. Splitting the signal works. Thanks.

I'd still like to know if what I'm asking works.
I can't find any info yet that definitively confirms/denies.

dorokusai · 11-03-2009, 06:07 PM

No, I'm told you cannot do that with the Micro-Pro. Just get a Y splitter that has male outputs and connect both subwoofers as you would a single subwoofer.

Cpyder · 11-04-2009, 04:23 AM

I checked the manual and it didn't really say.

You might want to take a look, I skimmed and may have missed it though. Online manual on polkaudio.com

levlhed · 11-04-2009, 08:51 AM

Quote:

Originally Posted by dorokusai

No, I'm told you cannot do that with the Micro-Pro.

Told by who?

Of course I read the manual already. I did that before asking here. I also searched the forum.

concealer404 · 11-04-2009, 10:06 AM

If the manual doesn't say you can do it, then chances are that you can't. If nobody here says you can do it, then chances are that you can't.

If you still don't believe anyone, then try it and see what happens.

dorokusai · 11-04-2009, 10:15 AM

Quote:

Originally Posted by levlhed

Told by who?

Of course I read the manual already. I did that before asking here. I also searched the forum.

Polk.

levlhed · 11-04-2009, 10:25 AM

I've been around long enough to know better than to just readily take someone's words as the gospel truth on a forum. I don't believe *everything* I read. Since I'm new to this forum I do not have the benefit of knowing who's word to trust and who is just talking out of their behind.
As usual in most public forums, I asked a question that didn't specifically get answered until I asked it again and again. Instead I got advice and guesses. If I wanted advice I'd have asked for advice. Advice is in abundance on public forums.

If dorokusai was specifically told by someone at Polk who knows what they are being asked and knows what they are talking about, then I believe that what I want to do can not be done.

Though I will be trying it anyway because I can

Taking delivery of two of them today.
I'll report back my findings for posterity's sake.

Cheers!

concealer404 · 11-04-2009, 11:03 AM

After all that you're going to try it anyways...

Well... at least that's the right attitude.

levlhed · 11-04-2009, 11:23 AM

yeah I know....

I just wanted to know what cables I was going to need

concealer404 · 11-04-2009, 11:24 AM

Two sub rcas.

Cpyder · 11-04-2009, 12:27 PM

You could just give Polk customer service a call today. Pretty sure they'd know more about their products than anyone here. They did design it by the way.

comfortablycurt · 11-04-2009, 01:46 PM

FWIW...Dorokusai works for Polk. You can probably take his word for fact on the topic.

You're best off just getting a Y-splitter...it won't degrade the sound quality enough to even make it noticeable.

dorokusai · 11-04-2009, 03:49 PM

OK, just to clarify as I should have been more specific.....

If you use the LFE Input on one subwoofer, you CANNOT use the Line Out to piggy back the other subwoofer.

If you use the Line Input on one subwoofer, you CAN use the Line Output to piggy back the other subwoofer.

Either way, ensure that your filter/crossover on the subwoofer is turned all the way up so you're not double filtering the signal.

levlhed · 11-05-2009, 12:08 PM

Now that is the kind of specific clear answer I was looking for in the first place.
And yes, it is exactly my experience now that I have them.

Though the seller actually sent me a 2000 and a 1000

I don't need the added features of the 2000 and the finishes don't match! Not sure what I'm going to do about it yet...

xcapri79 · 11-05-2009, 01:03 PM

As others have said, connect a RCA splitter jack to one subwoofer LFE input, then use two RCA cables to connect to your AVR LFE out and the second subwoofer LFE input.
This works for me.

http://www.radioshack.com/product/in...ductId=2103638

or this,

http://www.radioshack.com/product/in...ductId=2103709

concealer404 · 11-05-2009, 01:08 PM

I was trying to figure out why you posted a manual boost controller in this thread for a minute...

levlhed · 11-05-2009, 01:59 PM

I hadn't considered putting the splitter at the first sub instead of the LFE-out of the receiver. This would at least save me from two long cables through the wall. Thanks for the suggestion.

xcapri79 · 11-05-2009, 02:41 PM

You are welcome. That's how I connect two Polk PSW505 subs stacked one top of the other.

dorokusai · 11-05-2009, 02:46 PM

Quote:

Originally Posted by levlhed

I hadn't considered putting the splitter at the first sub instead of the LFE-out of the receiver. This would at least save me from two long cables through the wall. Thanks for the suggestion.

I wasn't suggesting anything less than a splitter at the subwoofer end based on your original post from the beginning.

mak99 · 11-07-2009, 06:26 AM

Levlhed -

I have two microPro 1000s fed by an Onkyo 805. I used an AudioQuest splitter at the Onkyo's sub connection, with equal lengths of sub cables into the subs LFE inputs.

This works perfect for my setup as the subs are about three feet to either side of the amp. I didn't have to worry about long cable runs like you do - see pic below...

Enjoy your microPros, they are amazing for their size! Though I am thinking about upgrading these to an HSU or SVS sub as I'd like to get deeper bass response. From what I've read about certain scenes in Transformers 2 *, the 1000's might not go low enough...always something to upgrade.

* BTW, watch the Big Screen Edition from Walmart - amazing IMAX scenes!

levlhed · 11-09-2009, 10:55 AM

Thanks again for all the help.

I'm working on adding some weight to the subs to keep them from jumping(!) across the hardwood/laminate floor.
I picked up some 12"x12"x1.5" concrete paving blocks. I got three for each sub. I want to put one underneath with dynamat between the slab and the floor and two on top of each sub probably with dynamat between the sub and concrete. I quickly tried it last night and they seem to do the trick!
I am going to seal/paint the concrete yet and put on the dynamat/etc.

My question is though what are the threads for the feet/spikes?
I want to get some spikes.

levlhed · 11-10-2009, 03:25 PM

That is to ask, what is the thread type/size for the feet/spikes on the bottom of the DSW's?
Will these work?
http://www.parts-express.com/pe/show...number=240-725

Thank you

mak99 · 11-10-2009, 04:27 PM

Quote:

Originally Posted by levlhed

That is to ask, what is the thread type/size for the feet/spikes on the bottom of the DSW's?
Will these work?
http://www.parts-express.com/pe/show...number=240-725

I don't think those spikes will work as direct replacements*. I used these very spikes many, many years ago on some huge, old-school Kenwood speakers. These spikes require you to drill a hole in the bottom of the cabinet to install the threaded inserts, something you probably don't want to do to your microPro.

IIRC, I believe the threaded inserts for the rubber feet of the microPros is the same as that used for the combo rubber feet/spikes on the DSW Pros subs. I called a Polk CSR about a year ago to ask this, and the CSR confirmed they are the same thread pitch and I could buy the combo feet for $10/set of four. Since my microPros are sitting on carpet (with foundation slab below), I should revisit this to upgrade the stock rubber-only feet...

* I see these spikes use a 1/4-20 thread, so if the microPro uses the same thread pitch, you could buy those spikes and just not use the inserts part...

11-03-2009, 04:36 PM	#1
levlhed Polkie Member Sales Rating: (0) Join Date: Nov 2009 Posts: 21	2) micro1000s w/ 1) LFE output I want to run two micropro 1000's off of my Onkyo SR806 which has 1 LFE output. Can I just run one RCA to the LFE-in of one sub, and then chain another RCA from the Line Out of that one into the LFE in on the second sub? That is to ask, does the line-out pass whatever is put into the LFE input?

11-03-2009, 04:38 PM	#2
concealer404 Polkologist Member Sales Rating: (5) Join Date: Jun 2008 Location: Indianapolis, IN Posts: 2,564	I usually prefer to get an RCA-splitter... __________________ HT - (It's a start, i guess ) Panasonic Viera TH-42PX80U Pioneer VSX-D850S Onkyo M-5160 (x3) Pioneer DV-50A Paradigm Esprit v.3s / Paradigm Titan v.3s / Paradigm CC-150 (Space reserved for sub(s)) APC H10 Audioquest Scarlet Vipers 2-channel B&K Reference 5 series 2 Onkyo M-5150 Pioneer DV-50A DVD Sansui TU-5500 Paradigm Esprit v.3s APC AV Black 1.5kVA H Type Power Conditioner Sidewinders

11-03-2009, 05:20 PM	#6
dorokusai Hardcore Member Sales Rating: (41) Join Date: Feb 2003 Location: 6 Feet Under Posts: 17,650	I believe it's about 3db of signal loss depending on the cable used....as a rough rule. It shouldn't be a problem. __________________ Death is my set, guess my religion

11-04-2009, 01:46 PM	#19
comfortablycurt Polk Expert Member Sales Rating: (6) Join Date: Oct 2008 Location: Dixon, IL Posts: 4,297	FWIW...Dorokusai works for Polk. You can probably take his word for fact on the topic. You're best off just getting a Y-splitter...it won't degrade the sound quality enough to even make it noticeable. __________________ 2 channel- APC H10 Power Conditioner Denon DVD-2910 Acurus L10 pre-amp Adcom GFA-545 power amp PolkAudio SDA 2A's/PolkAudio Monitor 7A's Audioquest Sidewinder IC's HT system- APC H10 Power Conditioner Cambridge Audio DVD89 universal player Onkyo TX-SR606 center-PolkAudio CSi5 mains-PolkAudio RTi8's surrounds-PolkAudio RTi6's sub-Infinity BU-2

11-04-2009, 03:49 PM	#20
dorokusai Hardcore Member Sales Rating: (41) Join Date: Feb 2003 Location: 6 Feet Under Posts: 17,650	OK, just to clarify as I should have been more specific..... If you use the LFE Input on one subwoofer, you CANNOT use the Line Out to piggy back the other subwoofer. If you use the Line Input on one subwoofer, you CAN use the Line Output to piggy back the other subwoofer. Either way, ensure that your filter/crossover on the subwoofer is turned all the way up so you're not double filtering the signal. Last edited by dorokusai; 11-04-2009 at 03:51 PM..

11-03-2009, 04:40 PM	#3
levlhed Polkie Member Sales Rating: (0) Join Date: Nov 2009 Posts: 21	I don't want to run 2 long cords through my wall and I don't want to split the signal. I'd rather run only one long cable and one shorter cable between the two and not split the signal if it works.

11-03-2009, 04:50 PM	#4
Matt34 Polkster Member Sales Rating: (1) Join Date: Jun 2008 Posts: 214	I don't think you can dasiy chain(salve) the micro-pros like you can say the JL audio subs. A spilter will not degrade the signal. I could be wrong in regards to the slave ability as I'm on my BB and can't confirm.

11-03-2009, 04:58 PM	#5
levlhed Polkie Member Sales Rating: (0) Join Date: Nov 2009 Posts: 21	certainly the line out would at least pass the line in, right? Otherwise what is the line out for? I suppose it's possible that the line out would be passing the line in, but not pass the LFE in. In that case I'd run it that way and keep the crossovers inline. It'd be preferable to bypass the crossovers though since they are not needed. Splitting a signal does degrade the signal. It may not be a readily-audible degradation, but there's no way it doesn't degrade.

11-03-2009, 05:41 PM	#7
Matt34 Polkster Member Sales Rating: (1) Join Date: Jun 2008 Posts: 214	Like dorko said, you will lose signal strength which can be compensated for through gain controls but there should be no audible lose in quaility.

11-03-2009, 05:44 PM	#8
levlhed Polkie Member Sales Rating: (0) Join Date: Nov 2009 Posts: 21	Yes, I get it. Splitting the signal works. Thanks. I'd still like to know if what I'm asking works. I can't find any info yet that definitively confirms/denies.

11-03-2009, 06:07 PM	#9
dorokusai Hardcore Member Sales Rating: (41) Join Date: Feb 2003 Location: 6 Feet Under Posts: 17,650	No, I'm told you cannot do that with the Micro-Pro. Just get a Y splitter that has male outputs and connect both subwoofers as you would a single subwoofer.

11-04-2009, 04:23 AM	#10
Cpyder Polkster Member Sales Rating: (0) Join Date: Jul 2009 Location: Iowa Posts: 236	I checked the manual and it didn't really say. You might want to take a look, I skimmed and may have missed it though. Online manual on polkaudio.com

11-04-2009, 10:06 AM	#12
concealer404 Polkologist Member Sales Rating: (5) Join Date: Jun 2008 Location: Indianapolis, IN Posts: 2,564	If the manual doesn't say you can do it, then chances are that you can't. If nobody here says you can do it, then chances are that you can't. If you still don't believe anyone, then try it and see what happens.

11-04-2009, 10:25 AM	#14
levlhed Polkie Member Sales Rating: (0) Join Date: Nov 2009 Posts: 21	I've been around long enough to know better than to just readily take someone's words as the gospel truth on a forum. I don't believe everything I read. Since I'm new to this forum I do not have the benefit of knowing who's word to trust and who is just talking out of their behind. As usual in most public forums, I asked a question that didn't specifically get answered until I asked it again and again. Instead I got advice and guesses. If I wanted advice I'd have asked for advice. Advice is in abundance on public forums. If dorokusai was specifically told by someone at Polk who knows what they are being asked and knows what they are talking about, then I believe that what I want to do can not be done. Though I will be trying it anyway because I can Taking delivery of two of them today. I'll report back my findings for posterity's sake. Cheers!

11-04-2009, 11:03 AM	#15
concealer404 Polkologist Member Sales Rating: (5) Join Date: Jun 2008 Location: Indianapolis, IN Posts: 2,564	After all that you're going to try it anyways... Well... at least that's the right attitude.

11-04-2009, 11:23 AM	#16
levlhed Polkie Member Sales Rating: (0) Join Date: Nov 2009 Posts: 21	yeah I know.... I just wanted to know what cables I was going to need

11-04-2009, 11:24 AM	#17
concealer404 Polkologist Member Sales Rating: (5) Join Date: Jun 2008 Location: Indianapolis, IN Posts: 2,564	Two sub rcas.

11-04-2009, 12:27 PM	#18
Cpyder Polkster Member Sales Rating: (0) Join Date: Jul 2009 Location: Iowa Posts: 236	You could just give Polk customer service a call today. Pretty sure they'd know more about their products than anyone here. They did design it by the way.

11-05-2009, 12:08 PM	#21
levlhed Polkie Member Sales Rating: (0) Join Date: Nov 2009 Posts: 21	Now that is the kind of specific clear answer I was looking for in the first place. And yes, it is exactly my experience now that I have them. Though the seller actually sent me a 2000 and a 1000 I don't need the added features of the 2000 and the finishes don't match! Not sure what I'm going to do about it yet...

11-05-2009, 01:03 PM	#22
xcapri79 Polkhead Member Sales Rating: (0) Join Date: Jun 2007 Location: North of New Orleans Posts: 1,096	As others have said, connect a RCA splitter jack to one subwoofer LFE input, then use two RCA cables to connect to your AVR LFE out and the second subwoofer LFE input. This works for me. http://www.radioshack.com/product/in...ductId=2103638 or this, http://www.radioshack.com/product/in...ductId=2103709 __________________ Main System Pioneer KRP-500M Plasma Monitor, SC-07 AVR, BDP-51FD Bluray/DVD/CD, DV-49AV DVD/SACD/CD, PD-F407 25 Disc CD player Sony XDR-F1HD Radio Tuner, Toshiba DVR670KU DVDR/VHSR/TV Tuner, Polk Audio SB50 via SC-07, Emotiva XPA-5 X 2 amps, Polk Audio LSi25 x 2, LSi15 x 4, LSiC x 2, PSW1000 x 2, DSW600 x 2 Monster HTS 2000 MKII Powerbar Last edited by xcapri79; 11-05-2009 at 01:10 PM..

11-05-2009, 01:08 PM	#23
concealer404 Polkologist Member Sales Rating: (5) Join Date: Jun 2008 Location: Indianapolis, IN Posts: 2,564	I was trying to figure out why you posted a manual boost controller in this thread for a minute...

11-05-2009, 01:59 PM	#24
levlhed Polkie Member Sales Rating: (0) Join Date: Nov 2009 Posts: 21	I hadn't considered putting the splitter at the first sub instead of the LFE-out of the receiver. This would at least save me from two long cables through the wall. Thanks for the suggestion.

11-05-2009, 02:41 PM	#25
xcapri79 Polkhead Member Sales Rating: (0) Join Date: Jun 2007 Location: North of New Orleans Posts: 1,096	You are welcome. That's how I connect two Polk PSW505 subs stacked one top of the other.

11-07-2009, 06:26 AM	#27
mak99 Polkie Member Sales Rating: (0) Join Date: Sep 2006 Location: redmond wa Posts: 46	Levlhed - I have two microPro 1000s fed by an Onkyo 805. I used an AudioQuest splitter at the Onkyo's sub connection, with equal lengths of sub cables into the subs LFE inputs. This works perfect for my setup as the subs are about three feet to either side of the amp. I didn't have to worry about long cable runs like you do - see pic below... Enjoy your microPros, they are amazing for their size! Though I am thinking about upgrading these to an HSU or SVS sub as I'd like to get deeper bass response. From what I've read about certain scenes in Transformers 2 , the 1000's might not go low enough...always something to upgrade. BTW, watch the Big Screen Edition from Walmart - amazing IMAX scenes! __________________ Main HT: Pioneer PRO-141FD Onkyo TX-SR805 Pioneer BDP-51FD (fw 1.32) Toshiba HD-XA2 (fw 4.0) Comcast/Motorola HD STB Panamax M5410 Pro Polk RTi70s main Polk CSi40 center Polk RCi80s surround Polk microPro 1000 (x2) I/Cs: Kimber 8TC/WBTs (fronts); BJC 12-White (surrounds); Monoprice HDMI (all sources) Salamander Triple 20 C/B

11-09-2009, 10:55 AM	#28
levlhed Polkie Member Sales Rating: (0) Join Date: Nov 2009 Posts: 21	Thanks again for all the help. I'm working on adding some weight to the subs to keep them from jumping(!) across the hardwood/laminate floor. I picked up some 12"x12"x1.5" concrete paving blocks. I got three for each sub. I want to put one underneath with dynamat between the slab and the floor and two on top of each sub probably with dynamat between the sub and concrete. I quickly tried it last night and they seem to do the trick! I am going to seal/paint the concrete yet and put on the dynamat/etc. My question is though what are the threads for the feet/spikes? I want to get some spikes.

11-10-2009, 03:25 PM	#29
levlhed Polkie Member Sales Rating: (0) Join Date: Nov 2009 Posts: 21	That is to ask, what is the thread type/size for the feet/spikes on the bottom of the DSW's? Will these work? http://www.parts-express.com/pe/show...number=240-725 Thank you

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