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Tube Simulator in a Pipe (TSP)


For years, Blue Circle has been trying to build equipment that represents the best qualities of both tube and solid-state components.
From the very first BC2, the 20s, AG, to the 200 series amplifiers and the 2K series amplifiers successfully incorporated tube and
solid state features in the same box, but we wanted to try it without the tubes… Let’s face it, tubes wear out and they can be a little
unreliable from time to time. Tubes also have to be replaced regularly, and they can be expensive.

So, since the 200 series was discontinued, we have been trying to configure a circuit that would accurately replicate tube tone, and
not diminish the advantages of soild state technology. Also, we wanted to keep the circuit simple, durable, and low cost. Enter the TSP…

We have tried the TSP unit in enough systems, and in comparison to enough tube components that we feel it is ready for production.
There has been a lot of positive response, the most common comments centering on the ability of the TSP to inject sweetness to the
overall sound of a system without removing any of the focus, punch, energy, and detail that are the strengths of solid state gear. It is
pretty much a win-win scenario.

Best of all, we tried to keep it inexpensive. The TSP comes in both balanced and single ended configurations, and it’s all in a pipe to
keep the cost down. The balanced version uses two pipes, which is why it is more expensive. Yes, we can do a boxed version, but it
will cost more money and have no real sonic advantage.
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Technical Specs
Physicall Dimensions (per pipe) – Outer diameter 4.5”, Length 3.75”
Minimum input impedance (from output of TSP to device) – 5K Ohms

Don’t take our word for it… try one at home and see what it does for your system!
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Contact:  bcircle@bluecircle.com  /  519-469-3215
   
Balanced version.
Single ended version.
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Balanced and Single-Ended
Single Channel 1/4" Tip/Sleeve with optional bypass switch