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OmnidirectionalCardioidBidirectionalRed Microphones Type A

Detachable-Capsule Tube Condenser Microphone

The Red Type A was manufactured by Blue Mics as one of a pair of low-cost microphone bodies that served as the foundation for a system of interchangeable capsules. The Type A was a tube condenser; the Type B was a FET condenser.

The tube was an ECC88; this is a dual-triode tube. The output circuit is transformerless; it uses 3 transistors (presumably one phase-splitter and two bipolars) to produce balanced output.

Type A KitAs of May, 2007, pricing for the Type A was as follows:

  • $1345 for the Type A body, no capsule
  • $649 for most of the Red capsules (R0-R7, not R4)
  • $849 for the R4, aka “The Big Omni,” described as a “small diaphragm sphere pressure omni” capsule

The Red mic line was discontinued in 2008, and rebranded by Blue as the Stage 1 and Stage 2; the capsules are now called Bottle Rockets.

The Red Microphones Type A is also known as: typea.

Specifications

Compatible Capsules
Blue Microphones B0 Large Diaphragm BottlecapCardioid Blue Microphones B0 Large Diaphragm Bottlecap
24mm large diaphragm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 20-20,000 Hz
MSRP: $649 | Still In Production
Blue Microphones B1 Small Diaphragm BottlecapCardioid Blue Microphones B1 Small Diaphragm Bottlecap
18mm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 35 - 20,000 Hz
MSRP: $649 | Still In Production
Blue Microphones B2 Figure-of-8 Lg Diaphragm BottlecapBidirectional Blue Microphones B2 Figure-of-8 Lg Diaphragm Bottlecap
24mm large diaphragm Bidirectional capsule
Sensitivity: mV/Pa
Freq. Resp.: 35 - 20,000 Hz
MSRP: $649.95 | Still In Production
Blue Microphones B3 Cardioid Mid-Size Diaphragm BottlecapCardioid Blue Microphones B3 Cardioid Mid-Size Diaphragm Bottlecap
22mm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $649 | Still In Production
Blue Microphones B4 Perspex Sphere Pressure Omni Small Diaphragm BottlecapOmnidirectional Blue Microphones B4 Perspex Sphere Pressure Omni Small Diaphragm Bottlecap
18mm Omnidirectional capsule
Sensitivity: mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $849 | Still In Production
Blue Microphones B5 Pressure Omni Large Diaphragm BottlecapOmnidirectional Blue Microphones B5 Pressure Omni Large Diaphragm Bottlecap
25mm large diaphragm Omnidirectional capsule
Sensitivity: mV/Pa
Freq. Resp.: 35 - 20,000 Hz
MSRP: $649 | Still In Production
Blue Microphones B6 Cardioid Large Diaphragm Dual Backplate BottlecapCardioid Blue Microphones B6 Cardioid Large Diaphragm Dual Backplate Bottlecap
24mm large diaphragm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 20 - 18,000 Hz
MSRP: $649.95 | Still In Production
Blue Microphones B7 Cardioid Large Diaphragm Single Backplate BottlecapCardioid Blue Microphones B7 Cardioid Large Diaphragm Single Backplate Bottlecap
24mm large diaphragm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $649.95 | Still In Production
Blue Microphones B8Cardioid Blue Microphones B8
25mm large diaphragm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $595 | Still In Production
Violet Design Ltd. VIN12Cardioid Violet Design Ltd. VIN12
26mm large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $1027 | Still In Production
Violet Design Ltd. VIN26Cardioid Violet Design Ltd. VIN26
26mm large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $1027 | Still In Production
Violet Design Ltd. VIN27Cardioid Violet Design Ltd. VIN27
27mm large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 22 - 20,000 Hz
MSRP: $1027 | Still In Production
Violet Design Ltd. VIN44Bidirectional Violet Design Ltd. VIN44
26mm large diaphragm Bidirectional capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 28 - 10,000 Hz
MSRP: $1027 | Still In Production
Violet Design Ltd. VIN47Cardioid Violet Design Ltd. VIN47
26mm large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $1068 | Still In Production
Violet Design Ltd. VIN55Omnidirectional Violet Design Ltd. VIN55
26mm large diaphragm Omnidirectional capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 24 - 20,000 Hz
MSRP: $1027 | Still In Production
Violet Design Ltd. VIN67Cardioid Violet Design Ltd. VIN67
26mm large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $1068 | Still In Production
Violet Design Ltd. VIN89Cardioid Violet Design Ltd. VIN89
22mm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $1068 | Still In Production
Pads & Filters Impedance SPL/Noise
n/a 50 Ohms (Low) Max SPL: 139 dB
Self-noise: 9.0 dB(A)
Weight Length Max Diameter Interface(s)
n/a n/a n/a
  • 3-pin XLR male (1)
Power Specifications
  • Includes tube power supply

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