QUICK UPDATE: Just arrived on our 'B-stock' webpage today are our last batch of 9-volt HeadRoom Micro Amp and Micro DACs. We currently show about 10 DACs and about 25 Micro Amps available. Only 2 HeadRoom Micro Stack bags remain. Once these are sold, they are all officially discontinued & goners 4evah!
HR 'Micro Stack' 15% discount and Stack Bag offers mentioned in this thread remains in effect while supplies last.
we've indeed had some reports that these rechargeables are slightly 'fatter' designs and will not slide in & out of the tight Micro Amp housing easily. The rechargeable MaHa 9v we carry on the website are there only because we know they are very slim-profile and will fit!
we've indeed had some reports that these rechargeables are slightly 'fatter' designs and will not slide in & out of the tight Micro Amp housing easily. The rechargeable MaHa 9v we carry on the website are there only because we know they are very slim-profile and will fit!
Cheers,
Jorge
HR Sales/ Product Manager
I am using Tenergy 250mah NiMH re-chargables, but noticed yours are 9.6v and mine are 8.4v
Can you confirm the 9.6v and tell me if that will have a positive impact on either sound (it should improve voltage swing unless you are regulated down) or battery life (on Ma Hour should matter) ??
Thanks!
__________________
Quote:
Originally Posted by Sovkiller
There is no doubt that getting older is mandatory, but to mature remains still optional...
LarryHead-Fi Feedback MAIN RIG: Marantz CD5001 > Synergistic Research Coax > Apogee mini-DAC with Sigma 11 PSU > ALO SXC XLR IC's > Single Power Square Wave XL balanced amp > HD600 with APS V3 balanced cable >>> ALO SXC mini-RCA IC > Woo GES > Sennheiser HE60 >>> or to Woo Audio Maxxed WA6 w/Sophia Princess rectifier/RCA 6DE7 > Grado RS-1 with APS V3 cable. BEDSIDE RIG: Sony D-303 or iRiver H140 > Sysconcept.ca optical > HeadRoom Micro DAC > barqy silver plated copper mini-RCA > Travagans Red and Black > Edition 9 with APS V3 cable. BASEMENT RIG: iBook > USB PICO > Dark Voice 336i "RCA5692/TS5998" > Denon D2000 APS V2 cable. PORTABLE RIG: iMod 80gb 5.5G > barqy silver in silk LOD > ALO portable V-Cap dock > ALO Cryo Silver X mini-mini > RSA Predator > Livewires T1. LAPTOP RIG: MacBook > USB iBasso D2 > RS-1 or Edition 9 with APS V3 cable. FS: Stax SRM-1 Mk2 Pro - with SR-5 headphones optional
...We've found the 9.6v MaHa batteries to sound slightly superior versus the lower voltage rechargeables we have tried --along with a tiny bit better battery life as well.
Oh yeah, we'll nicely sweeten the pot here:
The first five orders for the HR 'B-stock' Micro Stack pair can also receive the HeadRoom Micro Stack travel bag, the Micro Strap player platform, and the Micro Strap Stack extender for an additional $59usd upon request - a HeadRoom bag value of almost $130.
We only have 5 HR Micro Stack bags left so this offer is limited to the first five customers wanting the Stack bag & accessories ... Give us a call asap!
NEW UPDATE:
WE'RE DOWN TO OUR VERY LAST 'MICRO STACK' BAG, YA'LL!
I took advantage of the offer and got the whole deal: MicroStack and bag, and having never used a dedicated DAC before, I have to say that I'm really amazed at how much of a difference the DAC makes (I'm using the optical outs of my MacBook Pro and an Airport Express). The amp, as well, sounds great and is a definite improvement over my old (2AA-battery) Total AirHead.
I have noticed one thing, though, that I'm wondering about. If I use the amp with batteries (I've tried both Energizer alkalines and Ultralife non-rechargeable lithiums), there are certain moments in certain tracks that reliably lead to distortion, using either my (new) K701s or (old) K240Ms. If I use AC power, there's no distortion, and in fact, if I just use the headphone jack of my MacBook Pro with the K701s (there's no point in trying to use it with my K240Ms), I can also get similar volume levels without distortion. At first I thought it was just that my batteries were dying, since I first noticed it after about 4 hours off battery use, but when I swapped out the alkalines for the lithiums, I had the same problem.
If anyone has any info on what I can expect from batteries or what batteries I should be using, that would be great. It's not really a big deal, since I got the MicroStack to use primarily at work at my desk and at home with the Airport Express.
David
P.S. I should also say that it's always a great experience dealing with HeadRoom, and I'd recommend them to anyone. Thanks, guys!
Here I thought I was on top of the heap.
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