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xDuoo XQ-100 Bluetooth Audio Receiver and Converter
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xDuoo XQ-100 Bluetooth Audio Receiver and Converter
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Product Description
xDuoo is already known for accessible gear that incorporates high-quality components—and the XQ-100 is a Bluetooth oriented receiver and DAC that brings that classic componentry to the wireless world. Handling conversion, you’ll find a CS8406 digital transmission chip and two ES9038Q2M chips capable of outputting rich, detailed sound Read More
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radpoodle
259
Keyboard Club Member
Jul 3, 2023
zero watts as it is not an amp. its a "wireless dac" that takes bluetooth 1s and 0s and turns them into analog signal to send to an amp or powered speakers.
radpoodle
259
Keyboard Club Member
Jul 3, 2023
chewjfshyep, exactly. lots of devices to do that particular task. i use the wiim air play 2 as it has more features for lower price. no xlr balanced outs but i dont really need that. this xduoo looks much better though and probably a better build quality. wiim works for me though as its pretty much hidden anyways.
SuperFlyEDSguy
63
Feb 25, 2024
radpoodleYou make a very solid point as this is most definitely a DAC, with the very specific job of signal conversion as opposed to signal gain as that comes later down the audio chain. In terms of amplification, I would generally use dB power in place of either Volts (V) or Watts (W) unless we also know the other relevant factors, primarily I (Amperage) and Z (Impedance). Of course you could state it as the gain conversion factor, but being exponential as opposed to linear, remember that you would have something like 3dB=2x, 10dB=10x, 20dB=100x, etc. You get the idea. That would show the actual effect with a “proper amplifier” without needing all of those other basic electrical variables. The thing that I also like to point out is that such gain factors do get confusing if stating in V (most common), instead of W (far less common); simply because there are BOTH “voltage gain” AND “current gain amplifiers.”
Getting “back to the basics,” we know that W=IV or (P=IE, as most prefer), so you could have a static voltage, but the wattage will become fully dependent on current (I) as a result. That means V will never change, resulting in a “current gain amplifier” (as opposed to one that operates on the principle of voltage gain). The question is, is that practical?
Hell yeah, it’s VERY practical as most amplifiers that give you a “linear voltage gain multiplier,” with the famous O2 and various JDS models being prime examples, will have a “Low” setting of EXACTLY 1x! 😮 That certainly does NOT mean a lack of amplification as you could clearly HEAR it or even SEE it on a scope! The reasoning comes down to those other basic electrical variables as you get the most ideal amplification scenario when you have matching Z or nearly matched Z and a 1:1 scenario or “1x” allows for this! So, as V=IR or ~IZ here, if current (I) increases, as a result the Wattage (W) will also increase, and you’ll have “current gain,” all while proportionally decreasing the ~Z value! So, this is how a “buffer” works when it comes to terminology in amplifiers. Using a buffer in place of a typical voltage gain amplifier would be highly beneficial when employing only a couple of gain settings, like we see on the O2 amp. Sometimes, increasing the voltage again by a factor of just 3x or 4x will be a very bad choice and could very well result in blown speakers! Using a buffer as the “low gain” option while reserving the high gain for those with truly high impedances (Z) would result in a very noticeable amount of gain even with only 1x, for the reasons above! Therefore, it was an extremely wise decision going this route with the original O2 amplifier design. All said, my point being, there are too many factors (maybe a little pun was intended! 😂) with basic electrical variables going on behind the scenes even with a DAC, so to keep it simple and ensure that others would be behooved to understand that there’s absolutely no gain whatsoever, simply saying “0dB” inherently shows no gain of any kind as a simple “1x” still points to current gain being a more than viable option. (Remember that when using the Log Scale, 0dB shows a TRUE 1:1 relationship being that the “1x,” really is nothing more than “1x!” There’s just no easier way to use electrical terminology and make this point 100% valid.) Again, great job noticing the difference! I would just go with 0dB Gain for those reasons above. Thanks! ✌️
Hell yeah, it’s VERY practical as most amplifiers that give you a “linear voltage gain multiplier,” with the famous O2 and various JDS models being prime examples, will have a “Low” setting of EXACTLY 1x! 😮 That certainly does NOT mean a lack of amplification as you could clearly HEAR it or even SEE it on a scope! The reasoning comes down to those other basic electrical variables as you get the most ideal amplification scenario when you have matching Z or nearly matched Z and a 1:1 scenario or “1x” allows for this! So, as V=IR or ~IZ here, if current (I) increases, as a result the Wattage (W) will also increase, and you’ll have “current gain,” all while proportionally decreasing the ~Z value! So, this is how a “buffer” works when it comes to terminology in amplifiers. Using a buffer in place of a typical voltage gain amplifier would be highly beneficial when employing only a couple of gain settings, like we see on the O2 amp. Sometimes, increasing the voltage again by a factor of just 3x or 4x will be a very bad choice and could very well result in blown speakers! Using a buffer as the “low gain” option while reserving the high gain for those with truly high impedances (Z) would result in a very noticeable amount of gain even with only 1x, for the reasons above! Therefore, it was an extremely wise decision going this route with the original O2 amplifier design. All said, my point being, there are too many factors (maybe a little pun was intended! 😂) with basic electrical variables going on behind the scenes even with a DAC, so to keep it simple and ensure that others would be behooved to understand that there’s absolutely no gain whatsoever, simply saying “0dB” inherently shows no gain of any kind as a simple “1x” still points to current gain being a more than viable option. (Remember that when using the Log Scale, 0dB shows a TRUE 1:1 relationship being that the “1x,” really is nothing more than “1x!” There’s just no easier way to use electrical terminology and make this point 100% valid.) Again, great job noticing the difference! I would just go with 0dB Gain for those reasons above. Thanks! ✌️
eddiezr
113
Dec 8, 2023
wrhallBut not enough watts to earn a place in the discussion. Embarrassing low watts. Lol 😉
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