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Re: EP 350 Stand-by Problem
BrenR #151256 11/15/06 07:56 AM
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lol. Bren, you crack me up.

I just finished sending a very long winded email to Axiom, so I'll be hearing back from them shortly.


____________________________ M22 VP100 QS8 EP500 Yamaha HTR-5960
Re: EP 350 Stand-by Problem
JasonB #151257 11/15/06 05:50 PM
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Jason, I am having the same problem.

I am running the EP350 from a brand new Yamaha RX-V2600 amp. I tried cranking the subwoofer level to +9 db and the EP350 still goes to sleep too often when I watch Fith Element (which has plent of low freqs.)

I also tried running the EP350 off of my older Cambridge Audio A500 stereo amp (pre-amp outputs). I had the same problem there so I was pretty sure it wasn't a sub-out problem on the yamaha.

Now I am on my second EP350 and I have the exact same problem. I really think Axiom has an issue with this circuit. A manual bypass would have been nice.


M60, QS8, VP100 Yamaha RX-V2600
Re: EP 350 Stand-by Problem
Jc #151258 11/15/06 05:59 PM
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Quote:

Hi Jason,

Your situation seems to be quite unique. However, I believe that it can be easily solved. I suggest that you increase the trim level on your receiver and decrease your volume level on your EP350 it should solve your problem. Try it and please, let me know the result.

Jc
Axiom Audio Expert




I would say his problem is not unique. So far I have found similar posts from posters JasonB, Gena, n8wrj and I have this problem myself. In several cases the above fix did not, in fact, fix the problem.


M60, QS8, VP100 Yamaha RX-V2600
Re: EP 350 Stand-by Problem
AndyBaj #151259 11/15/06 05:59 PM
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This is strange, prior to my current EP500, I owned the EP350, and never had this problem matched with my Denon 2805.


M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
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Re: EP 350 Stand-by Problem
AndyBaj #151260 11/15/06 10:12 PM
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Hey AndyBaj,
Sorry to hear I'm not the only one with this problem. I'm waiting to hear back from axiom to see what they have to say about this issue. I'll post any progress or updates to this thread as I go along.

A manual bypass would be nice, but that's somewhat annoying to remember everytime you shut your stereo off (I've heard this sub draws a fair amount of current if left idle). I just wish the stand-by circuit worked like its supposed to.


____________________________ M22 VP100 QS8 EP500 Yamaha HTR-5960
Re: EP 350 Stand-by Problem
JasonB #151261 11/15/06 10:30 PM
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Quote:

A manual bypass would be nice, but that's somewhat annoying to remember everytime you shut your stereo off (I've heard this sub draws a fair amount of current if left idle). I just wish the stand-by circuit worked like its supposed to.


Well, I'll have to defend Axiom's choice here - the voltages it has to look at are in the tens to hundreds of millivolt range. Trying to compromise on a trigger voltage that will keep the sub on during quiet listening and keep it from turning on from electrical noise when, say, a furnace or washing machine motor starts up isn't an exact science... ask anyone who's ever tried to set a squelch control on a CB radio.

I leave my sub powered on all the time - I figure there's enough things in the house stealing less useful kilowatt hours than an idling amplifier circuit... then again I live in MB where hydroelectricity is cheap.

Bren R.

Re: EP 350 Stand-by Problem
AndyBaj #151262 11/15/06 11:21 PM
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Hi Jason,

Axiom applies a very elaborate quality control program to all its products and all its finished products are extensively and individually tested during and after its fabrication. Furthermore, a finished sample of every model has to pass a torture test on a short cycle rotation.

Trim level and dB adjustments are not objective measures and can be misleading. There is an easy way to scientifically test and verify the integrity of the sensitivity of your EP350. The EP350 will awake when it is submitted to a very low electrical impulse of one (1) to three (3) millivolts on its RCA line level input or six (6) to nine (9) millivolts on its XLR balanced input or one hundred (100) to one hundred and twenty five (125) millivolts on its high level inputs. These figures are some of the lowest ones of the industry.

Using a common electrical multitester you should be able to easily verify if your A/V receiver is producing and maintaining these low minimum figures.

Please, keep me posted and do not hesitate to let me know if I can be of further assistance.

Jc
Axiom Audio Expert

Re: EP 350 Stand-by Problem
Jc #151263 11/16/06 03:11 AM
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Well I just checked and my receiver does put out more then 1-3 mV AC when the sub works. When I turn the volume down a little, the voltage fluctuates from 0-8 mV AC, and the sub does not turn on here. This is all with my receiver set at +10 db trim for tue sub. So what does this mean then? The sub is working as designed, except I listen to music quieter then the sub was designed to work at, and I have no way to make it stay on at this volume...

If this is the case, it looks like I have a few options:
1)suck it up and play music louder all the time ;
2)return the sub and buy a different brand that doesn't have an auto stand-by, or at least has an override;
3)upgrade to one of Axiom's larger subs which don't have a stand-by mode (as far as I understand).

I don't think option 1 is going to work, since I've found orchestrated music has to be pretty loud before the sub kicks in.

Options 2 is a possibility, but then there's most likely going to be shipping involved, and the finishes won't match. I do think this sub looks awesome in high gloss cherry, and its even better that it matches all my other speakers as well.

Option 3 is also a possibility, but its more money . That's always the catch. From what I've heard, it is a far superior sub in all respects, but its nearly double the price. I'm just waiting for someone to say "come on, its just money"

I'll have to consider my options. I would appreciate any opinions you guys have to offer, as well as any other ideas that may solve my problem.

Oh ya, one other thing I tested. I pulled the high level connections out of one of my mains and fed it into the sub. I changed the fronts to large and set bass out to fronts. Same result as before; the sub even cuts out a little earlier I think. I'm not too sure since I didn't test this extensively, just wanted to see if by some miracle it worked. It may be because I only fed one of the fronts into it instead of both. Either way, I doubt I'd run my sub this way in the end anyways.


____________________________ M22 VP100 QS8 EP500 Yamaha HTR-5960
Re: EP 350 Stand-by Problem
JasonB #151264 11/16/06 03:39 AM
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Hang in there Jason, not sure I can be any help. I'm sure Axiom will work with you. There might be a part or replacement amp they can try to send you. Many times the problem is a configuration issue, however, it sounds like you've covered all the bases.

Randy


M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85


Re: EP 350 Stand-by Problem
JasonB #151265 11/16/06 03:31 PM
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Quote:

If this is the case, it looks like I have a few options:
1)suck it up and play music louder all the time ;
2)return the sub and buy a different brand that doesn't have an auto stand-by, or at least has an override;
3)upgrade to one of Axiom's larger subs which don't have a stand-by mode (as far as I understand).





Although I'm on the side of playing music loudly , I do have option number 4 for you - we can actually get the amp back and override the auto-off for you. This will cure the shut-off issue, but not potential upgrade-itis ("it's just money . . ."). PM me and we'll get the details sorted out for you ASAP.

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