Check out a used Marsh 2000t for under 1k at AG. I use it with my Maggie 3.6 and Bryston 4B-ST and conveys incredible detail and music, SS amp and tube pre is the way to go with Maggies. Only drawback is no remote and occasional microphony which probably can be cure with new/better tubes. The SS version received accolades from TAS . Some info from website:
A superior perfromance tube preamp with triode tube, one of the most linear devices ever developed was designed for the lowest distortion possible. Here it is combined with the FET, creating a new and entirely modern circuit called the " Trans-Mu amplification stage." This brings out all the benefits of the triode tube- extremely low noise, wide frequency response, low distortion - and eliminates the triode's drawbacks.Each channel uses two triode tubes with a push-pull output for low output impedance. The P2000t is able to drive even the longest cables without music deterioration.The filament voltage is direct voltage through a powerful C-multiplier filter, which ensure the lowest noise and the longest, most reliable operation. How low is low? Dead quiet-so you can hear event the most subtle elements in the music. Marsh-designed capacitors provide great accuracy and high-resolution of details- for the most realistic music reproduction possible and for reliable, long-life performance.Both line amplifiers are fitted with remote 12VDC control for custom installation and easy on/off control of other equipment in the system.
MSD-P2000T Specifications:
Frequency Response, 20-20,000 Hz +/- 0.1 dB
THD+noise at 1 Vrms, 20-20,000 Hz <0.05%
Input Impedance 50 kOhms
Maximum Gain 23 dB
Signal to Noise ratio, A weighted 90 dB
Maximum Output at 1kHz 8 Vrms
Crosstalk at 1 kHz -90 dB
Crosstalk at 10 kHz -90 dB
Input Power AC 110-120 V, 60 Hz
Power consumption 30 W
Size 19" W x 4 1/2" H x 13" D
Weight Net 13 lbs (5.8 kgs), Shipping 16 lbs (7.2 kgs)