Search Microphones

Share This Page

Groove Tubes Convertible

Pricing & Availability

  • MSRP: $149
  • Discontinued


Reviews & News

Convertible Documentation

HypercardioidGroove Tubes Convertible

Hypercardioid Pencil Condenser Microphone

The GT Convertible was a stage condenser microphone with a removable ball mesh grille. It was intended to be used either as an instrument mic, with ball grill removed, or as a handheld vocal microphone with the grille installed.

The circuit was transformerless, and was based on the popular Schoeps design.

ConvertibleThe capsule had a hypercardioid polar pattern, to aid with rejection and feedback issues in a stage setting. This capsule, unlike in the GT-44, was not removable. It was mounted on rubber shockmount posts to reduce mechanical noise.

The mic was introduced at Winter NAMM 2005, at an introductory price of $149.

The Groove Tubes Convertible is also known as: GT Convertible.

The mic was released in 2005.


Pickup Patterns Pads & Filters
Hypercardioid (5 mV/Pa; 20 - 18,000 Hz)
Capsule Dimensions Impedance SPL/Noise
Diaphragm diameter: 19mm
Capsule diameter: 21mm
Diaphragm gauge: 6 microns
200 Ohms (Low) Max SPL: 146 dB
Self-noise: 28.0 dB(A)
Weight Length Max Diameter Interface(s)
400g (14.11oz) 190mm (7.48'') 21mm (0.83'')
  • 3-pin XLR male (1)
Power Specifications
  • Requires phantom power

Did we get anything wrong on this page? Please let us know!