Bam!

[Paul Birkeland]

Another question: it seems headphone output isn't lowered at all (the resistors across the jack seems 0 ohm), isn't it a bit dangerous?

Ciao!

There are provisions for padding resistors in the manual (and we include them).  A 4 Watt amplifier isn't dangerous to power hungry planars or orthos.  If you'd like to run Grados with this amp, you will need to install the supplied padding resistors.  (But really, running hyper efficient, low impedance headphones on a 4 Watt per channel amplifier isn't the most sensible plan to begin with)

[Bonzo]

Thank you and sorry for the dumb question, but I fried my beloved koss for not having buying from you 

[corndog71]

Note to PB - I have attached a link to the full bill of materials for the Quicksand SLA battery adapter kit.

http://www.mouser.com/ProductDetail/3M/FDI18-250Q/?qs=SfU69DRKVGBj%252bw1YFkqIaw%3D%3D&gclid=CjkKEQjwodmdBRDm_ZLhorWm68UBEiQAKhO3_TzDJjUcXQ6SeXN3xDP2uRsp9BVJ2xyUV4oStf2a5Wjw_wcB

Can we get those cryoed? 

[Cary]

Any updates?

[ALL212]

A pound and a half package coming from Redmond tells me these may be shipping!!

[fullheadofnothing]

The first handful are either shipped or are in a pre-shipping limbo. The limbo ones will be out the door tomorrow. Still have some parts to get in for the rest, not really sure about timing quite yet.

[cspirou]

I like the idea of having a portable battery powered amp to use with a sensitive low maintenance speaker, like the Blumenstein Thrasher. Is there any particular reason why I wouldn't be able to integrate a volume pot with this?

[Paul Birkeland]

The volume pot is doable, but most portable sources tend to already have a level control built in.

-PB

[irishpatrick33]

This is so close to what I have been longing to build: a hybrid loudspeaker power amp that can run off batteries (even better if it could be remotely triggered)--the holy grail, I'd say.

I don't have the know-how or the bravery to mod the Quickie and Quicksand into my true desire (bypassing: headphones, source switching and volume controls).

[Paul Birkeland]

I don't have the know-how or the bravery to mod the Quickie and Quicksand into my true desire (bypassing: headphones, source switching and volume controls).

The source selector on the Quickie is also the power switch.  To mod it to just be a power switch, you can reduce its switching positions from 3 positions to 2 before installing the switch.  To bypass the level control, you can move the wiring on the pot slightly once it's working to turn the pot into a pair of 100K resistors.

The headphone jack doesn't interrupt the speaker feed from the Quicksand, so there isn't a huge need to bypass it. 

[tulz43]

Can the quicksand handle a 6 ohm speaker?  I'd like to try my hand at diy and the quickstand seems like a good place to start. Right now I currently only have a pair of the pioneer sb22 speakers but plan on getting something from Blumenstein. I'm in a townhouse so volume isn't that important.  Maybe 75db max.

[Doc B.]

Sure, 6 ohms is no problem.

[tulz43]

Thanks Doc. Is the quicksand a skill level 1?

[Doc B.]

It's a nice clean, easy and compact layout. It does require soldering up a PC board. The TPA3122 chip is socketed, which makes the process of stuffing and soldering the components pretty easy.

[m17xr2b]

Would the quickie work with an IEM using balanced armatures? I enjoy the quickie with and a matching set would be nice. In my case they are about 40ohm with 114db sensitivity. Main concern would be about the noise floor.