Yes. We are using Li-ion batteries in the new Micro and Desktop Portable. We've talked a lot about battery life with these products and the consensus is that 10-20 hours is about where we want to be. What ends up happening is we put together the unit and then turn up the biasing to make it sound better, we stop turning up the biasing when we hit the point when we're down to the minimum desired battery life.
Our assumption is that you don't really need more battery life than your player has. My feeling is most players get about ten hours, so 15 hours is a pretty safe number. But I think we're still open to adjustment here; I'd love to hear how you guys would want your amps dialed in? More battery life, but slightly reduces sound quality? Other way round? Where would you draw the line on battery life?
Any way you could offer 2 or 3 customized settings? Some people only need 2-3 hours, others might want 30 hours.
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Microbomber rig: iRiver h140, iRiver 550 cdp, HeadRoom microstack, etymotic er4p+s.
Tiny rig: iRiver h140, Core Sound HeadLine, etymotic er4p+s.
Wus rig: iRiver h140, original Portaphile V2^2 max, etymotic er4p+s.
The "I forgot to recharge the batteries" rig: iRiver h140, etymotic er4p.
We don't have particular plans at the moment, but I'm sure there will be packages. What would you like to see in one?
Personally, I'd maybe like to see a good, sealed headphone package. I'm thinking: Micro Portable w/ DAC option, Beyer DT770 (250 ohm), Micro Bag, and a baseball cap.
1. Can the DAC be added later? If yes, how much?
2. Does the pre-amp out (back panel) allows me to use the output of the DAC to feed a signal to another amp?
And a further question. I see from the Micro Portable Web page that the battery is supposed to last 20 hours. I'm assuming that figure is DAC free. How long will the battery last if the Micro is purchased with the DAC?
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Rig: (notebook -> USB A to mini b) or Iriver (H340 -> 6" Cardas mini to mini) -> Headroom Total Bithead Clear 2006 -> (Grado 1/8 to 1/4 cable -> Senn. HD555) or Senn. HD25-SP
...and yet more questions.
1) Is the estimated availability still Sept/Oct?
2) I see that the battery is 7.4VDC. Will the AC adapter provide more than that when plugged in?
3) Tyll stated that the DAC is comparable to the Micro DAC and the amp is comparable to the current Desktop module. Is this still about right?
Member of the Trade: HeadRoom Corp.: Product Manager
Quote:
Originally Posted by mrarroyo
Jamey, two/three questions:
1. Can the DAC be added later? If yes, how much?
2. Does the pre-amp out (back panel) allows me to use the output of the DAC to feed a signal to another amp?
Thanks.
1. WE haven't talked about it officially but I'm going to have to assume yes. I'm not sure how much at the moment but my best guess is that it would be about $50 more to do it later.
2. Yes it does but it is not a fixed level output, you would need to get a good level by using the volume control. It is intended to be used as a speaker output for your desktop speakers.
Quote:
Originally Posted by bradman
And a further question. I see from the Micro Portable Web page that the battery is supposed to last 20 hours. I'm assuming that figure is DAC free. How long will the battery last if the Micro is purchased with the DAC?
That is actually a pretty conservative estimate. With the DAC running, it's more like 25 hours of playtime. Without it, probably closer to 30.
Quote:
Originally Posted by Jamfan16
...and yet more questions.
1) Is the estimated availability still Sept/Oct?
2) I see that the battery is 7.4VDC. Will the AC adapter provide more than that when plugged in?
3) Tyll stated that the DAC is comparable to the Micro DAC and the amp is comparable to the current Desktop module. Is this still about right?
1. Yes
2. No, the amp will always run off of the batteries.
3. I'd say that's pretty close.
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1. WE haven't talked about it officially but I'm going to have to assume yes. I'm not sure how much at the moment but my best guess is that it would be about $50 more to do it later.
I assume that means $50 on top of the existing $199 upgrade?
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TOGA RIG: Parasound D/AC 1600HD --> Rockhopper Audio Balanced B22 --> AKG K701/ Grado HF-1/Sennheiser HD580(EA Senn cable)/AKG K1000
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