If we assume this is a temporary arrangement, how temporary is temporary? Are we talking months or years?
The Emotive USP-1
seems nice and has Bass Management built it, and there seem to be many of them for sale used. Certainly worth considering.
But the Emotiva PT-100
is well within your budget at $330 -
The Schiit at $299 in nice, but you also have to ask what else
you need the Pre-Amp to do?
The Emotiva PT-100
has MM/MC Phono, Coaxial, Optical, and USB Inputs,
and can be adapted for Bluetooth
, plus it has an FM Tuner.
Emotiva BTM-1 Bluetooth Module - $49 -
The Schiit is certainly first rate but it is analog only -
Schiit Sega-S Pre-Amp - $299 -
No Tone Control, no Tuner, no DAC, no Phono. Tough if it matters to you, Schiit does make a Tone Control (small equalizer) for $150 -
Schiit Loki Tone Control - $149 -
And Schiit does make very good DACs -
Schiit Modi DAC - $99 -
And they make very good Phono Stages -
Schiit Mani Phono Pre-Amp - $130 -
Add all those extras together and it is getting pretty expensive. Still, if my math is right, the total of all those is about $680.
$300 = Saga-S Pre-Amp
$150 = Loki Tone Controls
$100 = Modi DAC
$130 = Mani Phono Pre-Amp
$680 = Total
I suspect that is a little more than a Get-By
Pre-Amp, and really only $180 over your max budget. A lot of boxes though.
But best value in a NEW full featured quality Pre-Amp has to be the Emotiva PT-100
which is dead on your stated budget.