Simple, small footprint tube preamp ?


Please be kind. I'm pretty ignorant about computer audio. My source is a laptop, into a Sabre DAC, to the amplifiers. 
I'm wondering if there is a more simple, small footprint tube preamp that could be set on my desk near the laptop? I'd prefer to be able to tube roll, but know NOTHING about this really. I'd prefer to spend less that $500, but $1000 is okay. Normal sized chassis will not work in my application. Kits are okay too. Thank you
flaxxer
@flaxxer, since you want something smaller in chassis size and want to tube roll, would suggest you try out the Chinese clone of the Marantz 7 tube preamp. Its a line stage only, has excellent sonics and you can tube roll and capacitor roll to your hearts content.

Remote PRT-07B stereo 12AX7 Tube preamplifier base on Marantz M7 preamp L12-46 | eBay
@ atmasphere, are you saying I should use you amp as a preamp?
@flaxxer No. I completely misread something and thought you were talking about a desktop amp, not a preamp. Sorry about that.
Oops, my amps just changed. And my preamp needs MAY have because of this. So i need some advice on the best way to go about getting volume control for these Icepower ASP1000 amplifiers. I've read about the high input impedance. I use a computer for my source playing Flac, wav or hi-res audio files. I'm using a very simple dongle Style USB DAC that sounds okay. I have choices, but do not know what my best bet is. For simplicity, it would seem I should just buy a better desktop DAC, such as and SMSL M500 and use the volume control knob on front. Or ANY other DAC with a volume control for that matter. I know I can use my volume control the USB. Provides through the keyboard on my computer. But with amplifiers this powerful, I figure I should have a volume control to prevent issues such as full volume noise blasts, which have happened before when the computer glitches. My second option would be to purchase a regular preamp. This would be the most expensive option, as I would want something at least as good as the Schitt Freya +, and that is $900! I would still need a decent DAC upgrade. This gets expensive with my health issues at hand. The last way I could go, is something like an all tube gain stage. I would still need a DAC, but a simple gain stage kit should only be a few hundred at most. The other two options I can think of, would be the pass B1 buffer clone kit preamp for 150 dollars, but I don't know if it would play nice with a high input impedance of the icepower amp. The most simple and cheapest route, would be be using the Sure digital volume control option. But I do not know how high fidelity that would be. I could really use some help. I've been out of this hobby for about 10 years now. I feel a bit lost and appreciate everyone who has helped so far.
Maybe use a passive pre between DAC and amp.