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PRE1-BLT can be added to your order for any Tube Preamp that has a single tube, including:

 - F-PRE
 - V-PRE

Add PRE1-BLT for EACH of the single-tube preamps you wish to obtain pre-assembled. For example, if your order contains both F-PRE and V-PRE and you wish to have both be assembled, add 2x PRE1-BLT. On the other hand, if you wanted only one of the preamps to be pre-assembled, add 1x PRE1-BLT and specify which preamp should be assembled.

About London Power

London Power was founded in 1990 by Kevin O'Connor, after two decades of research into innovative audio amplification techniques. Kevin is an audio designer, author and speaker, known for his proprietary methodology called Power Scaling, and for his eleven books on audio subjects. Whether you seek amps, kits or information, you'll find useful answers here on not just the "how" but the "why" of audio amplifier design. Please enjoy the information on this site, and don't hesitate to contact us with questions.

Contact Us

(807) 473-0952
11 am - 6 pm, M-F
PO Box 10012, Thunder Bay, ON P7B 6T6 CANADA