Simple, small footprint tube preamp ?

I believe what you need is a all tube integrated amplifier (pre+power amp in single chassis). 

@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.