Chris Adams
New member
I am ready willing and able to pre order. 
Battery Supply kit
- Thread starter Doc B
- Start date
Chris Adams
New member
THAT is amazing! ;D
The enclosure would have to be bigger than the battery supply for both DAC and battery supply in one box. And customers would have had to ship their DAC back to us for the upgrade. Considering how crazy the shipping gets between countries (I was going to order some $80 gloves from Germany until I found out shipping was $55!) let alone the potential for shipping damage, we chose to make the upgrade a separate unit.
Natural Sound
New member
How long on average does it take to recharge the battery after say a five or six hour listening session on battery only? Also, I'd be curious to know what battery chemistry you guys settled on. Unless of course that is a trade secret. On my quickie I'm using NiMh and the class D amp I'm using an SLA. The reasons are not scientific. It's just what I had on hand.
I too am saving up for this upgrade. I'd like to get my hands on a Stereomour II as well.
I too am saving up for this upgrade. I'd like to get my hands on a Stereomour II as well.
The way we run the DAC here is to leave it on all the time. If we are not listening it stays in BAT/CHG mode. When we listen we switch to BAT mode. When it gets low it goes back to BAT/CHG. So I don't have a number for full recharge time in charge only/DAC off mode. PB knows the charge rate and can probably come up with a realistic estimate of full recharge time.
The battery is SLA. We listened to several different chemistries and SLA offered the best combination of sonics and practicality. LiFePO4 sounds good too but is not practical from a standpoint of shipping - USPS won't ship the size of LiFePO4 battery we would need to use.
The battery is SLA. We listened to several different chemistries and SLA offered the best combination of sonics and practicality. LiFePO4 sounds good too but is not practical from a standpoint of shipping - USPS won't ship the size of LiFePO4 battery we would need to use.
Natural Sound
New member
I'm close to pulling the trigger on this. One more question if I may. Does the circuit offer under-volt cutoff? I almost hate to admit this but I frequently fall asleep during my listening sessions. Its a great way to relax at the end of the day. Running an SLA into too deep of a discharge will shorten its life. Will the circuit shut down when running on battery power if a certain (low) voltage is reached?
The DAC itself will cease to function before the battery dies, and this give some protection on the battery for an overnight listen.
You could also just leave it on the charge/listen setting.
You could also just leave it on the charge/listen setting.
Grainger49
New member
I PMd him. I wanted him to know that he is not the only one who snoozes while listening. And I was happy to find out too.
Tubejack
New member
http://www.theabsolutesound.com/articles/q-up-automatic-tonearm-lift/
You can find it at several vendors, including Amazon, but pcX recently had it on sale ....
..... now I don't worry about nodding off ..... works flawlessly on my VPI SSM.
You can find it at several vendors, including Amazon, but pcX recently had it on sale ....
..... now I don't worry about nodding off ..... works flawlessly on my VPI SSM.
OH NO! I just realized that my on-order battery supply cannot be turned on and off by my 12V trigger system. I will have to get up out of my chair and walk 10 feet to turn it to bat only and then 10 feet back to my chair. I'll be exhausted after that. I'll have to build some kind of remote hand to turn the switch for me. 
I have an Uptone Audio Regen on order as well - this DAC is going to look awesome with things hanging from it and below it - hopefully someone will invent a new accessory for this DAC every 3 months or so and it will grow into some kind of transformer. BTW, the Uptone piece was designed using the Bottlehead DAC so I feel sure it will be a great addition.
I have an Uptone Audio Regen on order as well - this DAC is going to look awesome with things hanging from it and below it - hopefully someone will invent a new accessory for this DAC every 3 months or so and it will grow into some kind of transformer. BTW, the Uptone piece was designed using the Bottlehead DAC so I feel sure it will be a great addition.
glynnw said:
caffeinator
New member
Hey Doc & PB,
Would there be any issues with putting a wooden cover over the battery unit (e.g., heat, etc.)?
I mean a non-intrusive case that wouldn't require opening the unit itself, which I'm guessing would void one's warranty.
thanks,
David
Would there be any issues with putting a wooden cover over the battery unit (e.g., heat, etc.)?
I mean a non-intrusive case that wouldn't require opening the unit itself, which I'm guessing would void one's warranty.
thanks,
David
There shouldn't be any issue as long as there is a little airflow. We do apologize for these taking so long to get out the door. We've had a couple of hangups in getting materials from vendors. The last bits should be in early next week and hopefully the first units will be shipping then.
