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Post by jimangie1973 on Dec 11, 2010 9:07:05 GMT -5
I guess no ... maybe a Emo technician can give us some data for a Voltage divider (circuit diagram; resistor types etc.) to reduce the gain about 60%. I will solder a custom XLR cable to connect the XPA-1s then ... I'm not an Emo tech but I can answer your question. For 6 dB attenuation, use 5K series followed by 5K shunt to ground. This will have 10K input impedance, 2.5K output impedance. For 12 dB attenuation, use 7.5K series followed by 2.5K shunt to ground. This will have 10K input impedance, 1.875K output impedance. Place the attenuator at the end of the cable at the amplifier input.
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Post by ajani on Dec 11, 2010 9:35:20 GMT -5
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Post by jonsmith on Dec 11, 2010 16:27:55 GMT -5
I'll chime in here too: the lowest setting is .5, and connected directly to my Adcom GFA 555, this gets too loud for evening listening. That's with 28 decibals total gain. I'd hate to be running something with higher gain.
I think also that the lights are way too bright, and the center (numeric) display is a different hue of blue than the l.e.d.'s.
Mine came with an intelligence test. There was a non-conductive strip in the remote, and I had to figure out that the unit will only get turned on by the remote, and the remote will only work when you remove the nonconductive strip.
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Post by jonsmith on Dec 11, 2010 16:35:49 GMT -5
Also, if you want to attenuate only with a very simple single-ended class A circuit, I recommend that you consider building a B1 Buffer, which passively attenuates the volume by way of a potentiometer and presents high impedance at input and low impedance at output, which is what your Amp would want to see. It's designed by Nelson Pass and rumored to be the circuit in his (very expensive) pass labs preamps. The B1 Buffer a neat little device and you can buy printed circuit boards from the Pass DIY website. But you lose the remote control, which was one of the big things driving my purchase (Along with the $100 I won in the raffle at Emofest!--Thanks Emotiva for that). I'd really rather see a firmware update. Nobody needs that much gain unless they are running a discotheque or a club for the hearing-impaired or something.
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cawgijoe
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Post by cawgijoe on Dec 11, 2010 17:05:52 GMT -5
I'll chime in here too: the lowest setting is .5, and connected directly to my Adcom GFA 555, this gets too loud for evening listening. That's with 28 decibals total gain. I'd hate to be running something with higher gain. I think also that the lights are way too bright, and the center (numeric) display is a different hue of blue than the l.e.d.'s. Mine came with an intelligence test. There was a non-conductive strip in the remote, and I had to figure out that the unit will only get turned on by the remote, and the remote will only work when you remove the nonconductive strip. Mine came with a note telling me to remove the strip.
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Post by merlinwerks on Dec 11, 2010 20:21:39 GMT -5
But you lose the remote control, which was one of the big things driving my purchase (Along with the $100 I won in the raffle at Emofest!--Thanks Emotiva for that). I'd really rather see a firmware update. Nobody needs that much gain unless they are running a discotheque or a club for the hearing-impaired or something. Well since you'll be in a DIY mode anyway, you could pick up a remote volume kit from here: DantimaxVery high quality kits, good support, direct to you from Denmark via USPS with no hassles as I recall.
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Post by sharkman on Dec 14, 2010 19:12:16 GMT -5
The question for me is should XDA oweners have to purchase additional electronics to work around the volume issue? Especially since Emotiva clearly said the volume control would be in .5 db increments?(Also clearly indicated in the manual and the product page) Many of us made our purchase decision based on this information.
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Post by ajani on Dec 14, 2010 19:30:04 GMT -5
The question for me is should XDA oweners have to purchase additional electronics to work around the volume issue? Especially since Emotiva clearly said the volume control would be in .5 db increments?(Also clearly indicated in the manual and the product page) Many of us made our purchase decision based on this information. Clearly we should not... Also buying additional gear will likely degrade the sound...
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mrla
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Post by mrla on Dec 14, 2010 19:31:58 GMT -5
off topic, what is emo return policy? too lazy to search...
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Post by ajani on Dec 14, 2010 19:37:52 GMT -5
off topic, what is emo return policy? too lazy to search... I believe it's 30 days... Frankly, if I wasn't an overseas customer (and hence have to lose big time on shipping costs) I'd be seriously considering returning mine...
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Post by srb on Dec 15, 2010 1:52:27 GMT -5
At this point, they should probably at least modify their website and change Internal Volume Control: Digitally controlled in increments of 0.5dbThe XDA-1 website page has now been modified to say: " • Internal Volume Control: Digitally controlled in increments of 0.5 steps " Steve
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mrla
Minor Hero
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Post by mrla on Dec 15, 2010 2:16:49 GMT -5
what they need to do is to recall all xda-1's back to the lab and swap out out their digital controlled volume board (recalibrate the board?)...because it's the part that doesn't work as advertised or intended. even they don't advertise as 0.5 db step increment anttenuator, it's just doesn't sit well with anyone who buy this unit with the intent to use it as a pre-amp as well. emo silence on this issue is uncharacteristic for such a well-regarded online company.
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Post by sharkman on Dec 15, 2010 3:22:00 GMT -5
They still haven't said anything about the volume issue? The manual for the XDA that's been circulating still describes the volume as being in .5 db steps. I guess I'll be phoning them in the morning.
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Post by srb on Dec 15, 2010 3:34:42 GMT -5
The manual for the XDA that's been circulating still describes the volume as being in .5 db steps. Yes, and that same manual describes the Dim button as having "5 settings that allow you to adjust the brightness to your liking or turn the display lights off completely", which it does not. I think the silence from Emotiva should be broken and a dialogue established. I think people (myself included) would be more understanding of the situation if these two items as well as the apparent 16/48 limitation on the USB input were addressed. Waiting too much longer will cause a fair number of these units to be returned as the 30 day return window draws nearer without any proposed resolution. Steve
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Post by Chuck Elliot on Dec 15, 2010 8:05:04 GMT -5
At this point, they should probably at least modify their website and change Internal Volume Control: Digitally controlled in increments of 0.5dbThe XDA-1 website page has now been modified to say: " • Internal Volume Control: Digitally controlled in increments of 0.5 steps " Steve This smacks of bait and switch! And says to me that they are not going to do anything about the volume control!
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cawgijoe
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Post by cawgijoe on Dec 15, 2010 8:07:44 GMT -5
The manual for the XDA that's been circulating still describes the volume as being in .5 db steps. Yes, and that same manual describes the Dim button as having "5 settings that allow you to adjust the brightness to your liking or turn the display lights off completely", which it does not. I think the silence from Emotiva should be broken and a dialogue established. I think people (myself included) would be more understanding of the situation if these two items as well as the apparent 16/48 limitation on the USB input were addressed. Waiting too much longer will cause a fair number of these units to be returned as the 30 day return window draws nearer without any proposed resolution. Steve Ok.....slow down..........the manual that's in circulation was provided after the fact and is more than likely still in the editorial stage. It was not provided with the initial shipment of the XDA-1. It more than likely is not finalized. I'm not surprised that there is an error or two in it. If you want the silence broken at Emotiva, why not pick up the phone and call them?
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Post by Chuck Elliot on Dec 15, 2010 9:26:55 GMT -5
Yes, and that same manual describes the Dim button as having "5 settings that allow you to adjust the brightness to your liking or turn the display lights off completely", which it does not. I think the silence from Emotiva should be broken and a dialogue established. I think people (myself included) would be more understanding of the situation if these two items as well as the apparent 16/48 limitation on the USB input were addressed. Waiting too much longer will cause a fair number of these units to be returned as the 30 day return window draws nearer without any proposed resolution. Steve Ok.....slow down..........the manual that's in circulation was provided after the fact and is more than likely still in the editorial stage. It was not provided with the initial shipment of the XDA-1. It more than likely is not finalized. I'm not surprised that there is an error or two in it. If you want the silence broken at Emotiva, why not pick up the phone and call them?This change has nothing to do with the preliminary manual. It is a change to the on-line specs on the XDA-1 product page!!!! Also, various attempts have been made to call support by myself and others. They provided no info beyond that they knew about it. I do agree that anything in the preliminary manual should be treated as such.
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Post by Poodleluvr on Dec 15, 2010 9:50:55 GMT -5
Yes, and that same manual describes the Dim button as having "5 settings that allow you to adjust the brightness to your liking or turn the display lights off completely", which it does not. I think the silence from Emotiva should be broken and a dialogue established. I think people (myself included) would be more understanding of the situation if these two items as well as the apparent 16/48 limitation on the USB input were addressed. Waiting too much longer will cause a fair number of these units to be returned as the 30 day return window draws nearer without any proposed resolution. Steve Ok.....slow down..........the manual that's in circulation was provided after the fact and is more than likely still in the editorial stage. It was not provided with the initial shipment of the XDA-1. It more than likely is not finalized. I'm not surprised that there is an error or two in it. If you want the silence broken at Emotiva, why not pick up the phone and call them?Phone calls are the manner of which lawyers and politicians prefer to communicate. I'd suggest e-mail or a certified letter. Now, while batteries were included with the remote and electronic component, a printed 'User's guide' appears not; whereas later, the 'User's guide' was posted by a thoughtful and concerned lounge member, thank you, and NOT by the manufacturer. "Safety Precautions" "Read this User's guide thoroughly before attempting to install and configure the XDA-1 DAC. All the safety and operation instructions should be read before any operation of the component(s) begin." As other lounge members have noted publicly on the manufacturers website, when Jethro's teenage son received his XDA-1, he didn't receive a 'Users guide'; therefore unaware, his lawyer later commented that he personally didn't heed to any intended instructions by the manufacture when he operated his XDA-1 adjacent to the family's bathtub.... According to the family lawyer, when Cooter came home from work with nobody home, he noticed his XDA-1 on the kitchen countertop, apparently previously signed for by his wife upon deliver. At this same moment he was standing in 2 inches of water on the first floor since the line for the refrigerator's ice maker sprung a water leak. In a clean-up effort, Cooter got out the shop vac to address the flooding issue but figured he would plug-in his XDA-1 too to let it 'burn-in'...
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cawgijoe
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"We made too many of the wrong mistakes." - Yogi Berra
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Post by cawgijoe on Dec 15, 2010 9:52:53 GMT -5
Ok.....slow down..........the manual that's in circulation was provided after the fact and is more than likely still in the editorial stage. It was not provided with the initial shipment of the XDA-1. It more than likely is not finalized. I'm not surprised that there is an error or two in it. If you want the silence broken at Emotiva, why not pick up the phone and call them?This change has nothing to do with the preliminary manual. It is a change to the on-line specs on the XDA-1 product page!!!! Also, various attempts have been made to call support by myself and others. They provided no info beyond that they knew about it. I do agree that anything in the preliminary manual should be treated as such. Should have been clearer.....was referring to earlier post by srb on the manual. Online spec changes not-withstanding, the real issue here for folks using this product as a preamp is the volume issue and if the company has a plausible fix for it. People that want to use it in this manner need to know when/if it can be fixed soon so they can decide before the 30 day window expires on keep/return. Suggest you send an e-mail to Lonnie if you haven't already done so. Also, you may want to call back and see if you can speak to him.
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Post by ajani on Dec 15, 2010 10:00:29 GMT -5
While I understand all the arguments about calling Emotiva to check if a fix will be available soon... I must say that I strongly disagree with the idea that we (the customers) should have to be initiating contact individually at this stage...
It has been made clear that Emotiva is aware of the volume control issue (whether from phone calls or the load of posts about it on this forum). Emotiva should have made some sort of forum announcement on the issue already... Just changing the wording on the XDA-1 product page gives the strong impression that there is no intention to resolve the volume issue... If that is indeed the case, then this should be made clear so that persons can return the product before the 30 day trial expires...
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