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©2006 PrimaLuna USA

ProLogue Three Preamplifier

We want you to take a moment, please,
to take a close look at what you're getting for your hard-earned cash.
Looking at the picture above, you'll see some of the finest point-to-point wiring and assembly that we have in our showroom at any price. Why point-to-point wiring? It's the way it used to be done when cost was not the #1 priority back in the 1950's and 60's. It's much less expensive to stuff circuit boards instead of the fine finishing you see here, but the benefit is obvious. Point-to-point wiring is more dependable, easier to service, and you have less of a chance of large problems, like circuit boards cracking.

The number one reason for point-to-point wiring, is that it sounds better . It gives your amplifier a soul, its what McIntosh and Marantz did back in the hey-day of hifi, but had to stop doing because it requires skilled craftspeople and time. Now there are some companies that still have point-to-point wiring. The best ones being Cary and Atma-Sphere, but these are hardly products that everybody can afford. There are also some products that are less expensive that have point-to-point wiring, but the workmanship is shoddy at best.

That's why we want you to look carefully at how these are made. Look at the ceramic stand offs, where wires are joined, at the perfect solder joints, and superb machining. We're very proud of how this product is made, and especially proud with how it produces music.


Looking at this picture above, you will see the ceramic stand offs, and precision tie bars where the wires are joined. Note the ceramic tube sockets, Solen coupling capacitors, and the vents surrounding the rectifier sockets to help dissipate heat through the amplifier up and out from the bottom vents.
No other product that we've seen at this price offers these features.
Both channels are tube-rectified, giving you that pure, smooth midband that only tubes can bring.


The ProLogue Three boasts a very sophisticated choke-regulated power supply. Above is a picture of the regulator board, which controls each choke-regulation transformers. The preamp is dual-mono, so each channel has its own choke (that's four transformers... and this is the preamp)! The result in sound is an extremely low noise floor, making for the ultimate in depth an dynamics throughout the soundstage.