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The ProLogue Three is true dual mono with TWO toroidal power transformers,
choke-regulation, point to point wiring, and premium parts including an Alps Blue
Velvet potentiometer and Solen and Swellong capacitors. Five coats of hand-
rubbed finish, removable tube cage, and ceramic tube sockets. It weighs in at 23.5
lbs, almost 50 percent more than the $3495 preamp and sells for more than 60
percent less.

But it's not about money. (Well...maybe a little)

The glory of tubes will breathe life into your solid state amplifier. The ProLogue
Three boasts tube rectification using TWO 5AR4 tubes, one for each channel. No
negative feedback and no cathode followers for a vibrant midrange that creates
the kind of three-dimensional soundstage rarely encountered.

Running it with a tube amp? Perfect. You will get wide bandwidth and real bass
and a top end that is not bitey, but goes on forever. If you have noise issues or use
high-efficiency speakers you will love it because it is so quiet. Only 11.5dB of gain
and the tube heaters are DC so it will be less picky of tube choices. The power
supply is perfectly de-coupled with an ultra-wide band (several MHz) constant
source impedance and low corner frequency of over two octaves below the audio
bandwidth (4Hz).

The ProLogue Three is non-inverting, and has two pairs of outputs so you can
easily bi-amp or add a powered subwoofer.

Prologue Three Preamplifier Specifications
Inputs 4 Pair RCA
Outputs 2 Pair RCA Preamp Outs
1 Pair RCA Fixed Tape Out
Gain 11.5 dB
Freq. Response (+/- 3dB) 4Hz - 85kHz
THD Less than 1% at full power
S/N Ratio >109 dB unweighted
Input Sensitivity 200mV
Input Impedance 100k Ohms
Output Impedance 2.8k Ohms
Power Consumption 48 watts
Standard Tube Complement 2 - 12AX7
2- 12AU7
2 - 5AR4
Dimensions (WxHxD) 11" x 7.5" x 15.5"
Weight 23.5 lbs

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