GMT

70 & 77

MICROPHONES

" Omni is life"

cardio is good too...

The new serie GMT-70 & GMT77 microphone specially designed for capturing acoustic instruments and whatever you wish...

GMT-70

is made around a vintage-inspired M7 capsule polarized in omnidirectional direction.
the capsule becomes insensitive to proximity and softens, it responds in frequency with an expanded bass and an treble without harshness

GMT-77

is made around a vintage-inspired M7 capsule polarized in cardioid direction
the capsule becomes more colorful and warm.

the capsule and the electronics are mounted on suspension in order to avoid any structural vibration and microphony
the body is machined in aluminum + brass to be easily perched in height.
The microphones are equipped with the highest electronic quality with Lundahl transformers guaranteeing you the best sound result for your recordings.

Included

• Flycase
• Miniswivel clip
  
• Documents
• XLR 7M (tube version only )

A birdcage

the body is a birdcage which avoids harmful internal reflections as much as possible

the perfect hexagonal honeycomb mesh to guarantee the integrity of the structure and the solidity of the microphone.

The body is made of a mix of brass and aluminum, the body perfectly controls the microphony and mechanical resonance.

ELECTRONICS

The new GMT-70 & 77 is built around vintage military stock NOS triode tube electronics ,  a magnificent Jensen capacitor

and a high quality Lundahl output transformer.
Each element and diagram has been extensively studied and tested to improve the gain, the signal-to-noise ratio,

the frequency response.
A real obsession to gain a few mv of sensitivity

The GMT-70 &77 cardioid and omni are equipped with an M7 capsule in PVC clone of the famous vintage capsule used in the 50s and 60s.

after more than a year of studio tests
this latest version is now available

The GMT-70s and 77s are now available in a transistor version !
the microphones are equipped with the Jfet Toshiba transistor amplifier electronics and the lundahl 1538 transformer
this transistor version is very practical if you have to travel with your microphones

Specifications :

• Polar Pattern: 70 Omnidirectionnel or 77 Cardioide
  
• M7 capsule mylard
• Frequency Response: 20Hz to 20kHz
• Max SPL: appx. 125dB @ 0.5% THD
• Sensibility 20mV/Pa
  
• self noise 16 dBA
• Output Impedance: 200 Ω
• Vintage Toshiba jFet
• Balanced transformer Lundahl LL1538
• Jensen output cap
• Vishay RN resistor
• Silicon  wire
• Aluminium + brass body
• Handmade in France

What are the differences between the tube and transistor versions?  

• The tube version has a unique way of creating a "glue" effect on the sound, with slight compression due to the technology. It also slightly softens the high end of the spectrum.  
• The transistor version provides faster transients and allows for a slight boost in the highs.  
• The bass is more precise and tighter compared to the tube version.  
• The noise level is nearly identical between the tube and transistor versions.
• The high-end components are the same as those used in the tube and transistor versions. 

Included (transistor version )

• Flycase
• Miniswivel clip
  
• Documents