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Post by Ted O. on Jan 9, 2017 20:07:25 GMT -5
I can confirm that my S12 has the exact same problem. I noticed it as soon as I plugged it in and turned on the power. It is quite audible in my defiantly not quiet living room whenever the unit is powered up (it goes away when in standby).
I've been spending the past week trying to determine if it was some problem with the AC lines in my house (which are a bit of a mess) before contacting tech support. I borrowed an isolation transformer from work to check if it was some kind of ground loop or DC bias from an electronic dimmer or something else on the AC line at my house. It is not either of these problems. It does not appear to come from the speaker driver either. Sounds alot like transformer hum from the amps power supply to me.
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Post by Axis on Jan 9, 2017 20:10:25 GMT -5
I can confirm that my S12 has the exact same problem. I noticed it as soon as I plugged it in and turned on the power. It is quite audible in my defiantly not quiet living room whenever the unit is powered up (it goes away when in standby). I've been spending the past week trying to determine if it was some problem with the AC lines in my house (which are a bit of a mess) before contacting tech support. I borrowed an isolation transformer from work to check if it was some kind of ground loop or DC bias from an electronic dimmer or something else on the AC line at my house. It is not either of these problems. It does not appear to come from the speaker driver either. Sounds alot like transformer hum from the amps power supply to me. Emotiva will repair every one that has a problem or my name is Mud.  |
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Post by Deleted on Jan 10, 2017 11:09:15 GMT -5
This has been an issue with my S10 from day 1 along with turn on pop.. Info is on another thread in subwoofer section. These subs definitely have a problem... Sometimes it doesn't pay to be first to buy... If you are experiencing a turn-on "pop" sound, that is isolated to your unit as I have not seen that with any of the other units we have, or any that we have received back. When powering on the subwoofer, you should hear two relays click, the mains relay for the transformer and the output relay to the speaker. You may also hear a quiet thump when coming out of standby or powering on for the first time, and this is not a problem for the unit. But this is not the issue Dan was referring to in his post. If anyone believes they are having an issue with their Airmotiv subwoofer behaving in a way that is undesirable, contact our customer support. Any support issues will be handled exclusively via the support system. We will not be resolving any support issues (diagnosing, troubleshooting, issuing RMA) via the forum, although you are still welcome to help each other if there appears to be an obvious cause with an easy solution such as a ground loop or faulty cable, both of which can also cause quiescent noise or "hum" from a unit at idle. Also, keep in mind that any units coming back to us for service MUST, in every case, have an RMA number or they will not be accepted. |
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Post by Andy Proctor on Jan 10, 2017 19:51:13 GMT -5
I got two S12s just after Christmas and discovered this hum in both units almost immediately. I tried all sorts of cable changes and different power outlets with no joy. The support reply said that some noise was inevitable with high gain amps and that when you hear the noise in a quiet room you tend to keep hearing it as a sort of psychological response. I compared the noise to a Martin Logan subwoofer I have and concluded that the Airmotivs could not be lived with. I returned both units just before new year. Nice to see that there has been a real issue detected and a fix is in the works, however I paid $279.18 to ship both the units back, it would be nice if this could be refunded to me. Quality issues like this are not acceptable and it is most certainly true that you should never, ever get the first of anything. Finally having dissed the company a little I would like to say that Emotiva is a very fine company in general and responses and actions are mostly prompt and on the mark and I enjoy my amps and pre-pro every day. AP
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Post by Jim on Jan 10, 2017 19:55:30 GMT -5
I got two S12s just after Christmas and discovered this hum in both units almost immediately. I tried all sorts of cable changes and different power outlets with no joy. The support reply said that some noise was inevitable with high gain amps and that when you hear the noise in a quiet room you tend to keep hearing it as a sort of psychological response. I compared the noise to a Martin Logan subwoofer I have and concluded that the Airmotivs could not be lived with. I returned both units just before new year. Nice to see that there has been a real issue detected and a fix is in the works, however I paid $279.18 to ship both the units back, it would be nice if this could be refunded to me. Quality issues like this are not acceptable and it is most certainly true that you should never, ever get the first of anything. Finally having dissed the company a little I would like to say that Emotiva is a very fine company in general and responses and actions are mostly prompt and on the mark and I enjoy my amps and pre-pro every day. AP If you genuinely want to pursue this, you will probably want to call Emotiva. |
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Post by Dan Laufman on Jan 11, 2017 18:33:04 GMT -5
Hi all,
Ok, we have found the issue and a corrective action is in place and units are being tested and modified as we speak.
The hum level varies from unit to unit, so some people may not have an issue, while others may. However, we are modifying all units in stock.
If your unit is humming and you have service order in place, your unit will be replaced and you will receive notice of the new unit being shipped and return instructions for the original unit. If you do not want to ship the entire subwoofer back and are mechanically inclined, you can have a replacement amplifier sent to you at your option.
You'll need to contact us and let us know if this is what you'd like to do, otherwise we'll send a replace subwoofer to handle your service request.
My apologies for the inconvenience.
Cheers,
Big Dan
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Post by brutiarti on Jan 11, 2017 18:50:50 GMT -5
Dan, would you put the basx s12 in the same level of the svs sb-2000. I got a pair of the ultra 10 and i like them a lot, but thinking getting a 12" to match the other 12" that i currently have.
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Post by jra on Jan 11, 2017 20:52:54 GMT -5
Hi all, Ok, we have found the issue and a corrective action is in place and units are being tested and modified as we speak. The hum level varies from unit to unit, so some people may not have an issue, while others may. However, we are modifying all units in stock. If your unit is humming and you have service order in place, your unit will be replaced and you will receive notice of the new unit being shipped and return instructions for the original unit. If you do not want to ship the entire subwoofer back and are mechanically inclined, you can have a replacement amplifier sent to you at your option. You'll need to contact us and let us know if this is what you'd like to do, otherwise we'll send a replace subwoofer to handle your service request. My apologies for the inconvenience. Cheers, Big Dan Dan, thanks *SO MUCH* for the quick response on this ! I've had occasional issues with Emotiva equipment, but IMHO the measure of a company isn't when everything goes right, but how they respond when something (inevitably) goes wrong. Emotiva passes that test with flying colors ! Could you give a little more detail on what a customer has to do to manually replace the amp in the S12 units ? I'm very confident with software, a little less so with hardware :-). |
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Post by klinemj on Jan 11, 2017 21:33:08 GMT -5
Another great example of Emotiva customer service in action!
Mark
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Post by Deleted on Jan 12, 2017 10:09:18 GMT -5
Dan, would you put the basx s12 in the same level of the svs sb-2000. I got a pair of the ultra 10 and i like them a lot, but thinking getting a 12" to match the other 12" that i currently have. Hello brutiarti, In my testing of both units, using CEA2010 distortion limits, I found that the BasX S12 produces approximately equal distortion-limited output to the SB-2000 (less than 0.5 dB separating them, with only 300W in the BasX vs 500W in the SVS, so the BasX S12 is more efficient), and actually produces greater distortion-limited output between 20 and 30 Hz. The vented enclosure of the S12 gives greater efficiency and output, while avoiding "loose" or "boomy" character, through careful design to ensure an "overdamped" vented alignment which is a compromise between the sound of a ported enclosure and a sealed enclosure. You would be quite happy with the BasX S12. Best regards, Rory Buszka Emotiva Engineering |
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Post by brutiarti on Jan 12, 2017 10:15:51 GMT -5
Hello brutiarti, In my testing of both units, using CEA2010 distortion limits, I found that the BasX S12 produces approximately equal distortion-limited output to the SB-2000 (less than 0.5 dB separating them, with only 300W in the BasX vs 500W in the SVS, so the BasX S12 is more efficient), and actually produces greater distortion-limited output between 20 and 30 Hz. The vented enclosure of the S12 gives greater efficiency and output, while avoiding "loose" or "boomy" character, through careful design to ensure an "overdamped" vented alignment which is a compromise between the sound of a ported enclosure and a sealed enclosure. You would be quite happy with the BasX S12. Best regards, Rory Buszka Emotiva Engineering Thank you Rory. I will pull the trigger then |
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Post by Deleted on Jan 12, 2017 11:16:07 GMT -5
Hello brutiarti, In my testing of both units, using CEA2010 distortion limits, I found that the BasX S12 produces approximately equal distortion-limited output to the SB-2000 (less than 0.5 dB separating them, with only 300W in the BasX vs 500W in the SVS, so the BasX S12 is more efficient), and actually produces greater distortion-limited output between 20 and 30 Hz. The vented enclosure of the S12 gives greater efficiency and output, while avoiding "loose" or "boomy" character, through careful design to ensure an "overdamped" vented alignment which is a compromise between the sound of a ported enclosure and a sealed enclosure. You would be quite happy with the BasX S12. Best regards, Rory Buszka Emotiva Engineering Thank you Rory. I will pull the trigger then Great! Let me know what you think of it. |
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Post by pedrocols on Jan 12, 2017 11:21:36 GMT -5
I now need someone to test this babies with Magnepan speakers...
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Post by pedrocols on Jan 12, 2017 11:29:31 GMT -5
Hello brutiarti, In my testing of both units, using CEA2010 distortion limits, I found that the BasX S12 produces approximately equal distortion-limited output to the SB-2000 (less than 0.5 dB separating them, with only 300W in the BasX vs 500W in the SVS, so the BasX S12 is more efficient), and actually produces greater distortion-limited output between 20 and 30 Hz. The vented enclosure of the S12 gives greater efficiency and output, while avoiding "loose" or "boomy" character, through careful design to ensure an "overdamped" vented alignment which is a compromise between the sound of a ported enclosure and a sealed enclosure. You would be quite happy with the BasX S12. Best regards, Rory Buszka Emotiva Engineering Thank you Rory. I will pull the trigger then The SVS has 45 days free shipping and return. In addition, it has a 5 year warranty and when you buy two you get a substantial discount. Just saying. It is a jungle out there my frends. |
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Post by Deleted on Jan 12, 2017 11:38:05 GMT -5
Hi all, Ok, we have found the issue and a corrective action is in place and units are being tested and modified as we speak. The hum level varies from unit to unit, so some people may not have an issue, while others may. However, we are modifying all units in stock. If your unit is humming and you have service order in place, your unit will be replaced and you will receive notice of the new unit being shipped and return instructions for the original unit. If you do not want to ship the entire subwoofer back and are mechanically inclined, you can have a replacement amplifier sent to you at your option. You'll need to contact us and let us know if this is what you'd like to do, otherwise we'll send a replace subwoofer to handle your service request. My apologies for the inconvenience. Cheers, Big Dan Dan, thanks *SO MUCH* for the quick response on this ! I've had occasional issues with Emotiva equipment, but IMHO the measure of a company isn't when everything goes right, but how they respond when something (inevitably) goes wrong. Emotiva passes that test with flying colors ! Could you give a little more detail on what a customer has to do to manually replace the amp in the S12 units ? I'm very confident with software, a little less so with hardware :-). Hello JRA, Replacement of the plate involves removing 10 screws and unclipping the driver leads from the spring terminals on the back of the driver. Next, connect the new plate and install it, being careful not to pinch any wires in the flange area of the plate. Then box up the old plate in the shipping box for the new plate and send it back. Best regards, Rory Buszka Emotiva Engineering |
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Post by Deleted on Jan 12, 2017 11:45:06 GMT -5
Thank you Rory. I will pull the trigger then The SVS has 45 days free shipping and return. In addition, it has a 5 year warranty and when you buy two you get a substantial discount. Just saying. It is a jungle out there my frends. Never mind - see Dan's response below. |
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Post by Dan Laufman on Jan 12, 2017 11:52:09 GMT -5
Just saying...
BasX12 = SB-2000 in terms of practical performance and build quality....
$399.00 vs. $699.00 You save $300.00!! No brainer.
Buy two...
BasX12 x 2 = $799.00
SB2000 x 2 = $1,298.00
With Emotiva you save $500.00. Again, no brainer.
And if you buy BasX in the next two days you'd save $620.00. Really.. are you kidding?? It's basically two for the price of one!!
Free shipping, 3 year warranty, 30 day in-home trial, Emotiva quality... and more output in the deep bass region, where you need it!
You're right, it's a jungle out there and Emotiva is KING!!!
Peace and love,
Big Dan
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Post by pedrocols on Jan 12, 2017 12:06:38 GMT -5
The SVS has 45 days free shipping and return. In addition, it has a 5 year warranty and when you buy two you get a substantial discount. Just saying. It is a jungle out there my frends. Whose side are you on anyway? If this is going to be an "us vs them" thing, consider the price delta. The discount from SVS for buying two subwoofers is not that "substantial"... at least not enough to tip the balance. We also offer free shipping on our subs, and 30 days return. I know I've never needed more than 30 days to know whether a product works for me. The SB-2000 as a competing product is a little bit smaller, it has a little more power, and it has a driver with a cast frame and a shorting ring, but that doesn't buy it any extra distortion-limited output, which is what you are really paying for. If you really are dead-set on a sealed box sub, and it must be a cube, then you might go with the SB-2000 at additional cost. If you need a more robust driver and want even more distortion-limited output down low, there's our Airmotiv S12. It goes louder and lower (to the tune of +6 dB at 20 Hz). It's a cube. It has a robust and extremely reliable Class-AB amplifier. (And, when there's an issue, we take good care of you. We stake our reputation on it.) That's all I'm going to say on the question. SVS is a top-notch operation, and they sell some really excellent subs in the larger size and price classes, particularly their vented subs. There's no denying that. Our focus has been to deliver a very competitive offering in our size and price category, and we're quite happy with where we are. The amp issue in the Airmotiv S10 and S12 was unfortunate, but we stepped in quickly, verified the issue, developed a fix, and now it's been solved. My post it is just a reflection from a customer and potential buyer perspective. I am not taking sides here really. Maybe I am just thinking out loud and this is one of the things that crossed my mind when it comes to a buying decision. I did already express my interest in your product a few posts back... |
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Post by jmilton on Jan 12, 2017 12:09:48 GMT -5
Dan. You and your company are mad.
Mad, I tell you!
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Post by Deleted on Jan 12, 2017 12:19:55 GMT -5
Dan. You and your company are mad. Mad, I tell you!  |
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