InnerTUBE Audio Tube 87 Retro-Fit Kit
Turn your U-87 from standard solid state, into a true tube microphone. The changeover is accomplished quickly and easily by the user in one minute or less.
This retrofit is non-destructive, and can be reverted back easily if one should ever want to use the retrofit at another studio. There are identical retrofits for both the older standard type as well as the newer a-i, with equally impressive results.
As one U-87 owner who utilizes the retrofit in a variety of applications said, "I used to like how my solid state 87 sounded until I heard it tubed. Now because of the added sonic dimension and clarity, I won't use it unless it is tubed".
The retrofit has been a consistent winner time and again, in critical blind listening tests between itself and top world class solid state and tube microphones. Those who have conducted these microphone "shootouts" are like yourself, professionals in the audio field. They have been surprised and are greatly impressed when they learn the microphone they chose as best sounding overall is the retrofit.
The Retrofit Kit Includes:
- The internal Tube Retrofit pre-amp assembly
- Power Supply with continuously variable pattern pot
- Cables for the mic (7-pin), and power supply (Grounded AC)
- Instructions for change over (click for instructions)
- All components are pre-assembled and ready for installation.
|Tube or Solid State||Tube|
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