K804
Primary use:
Type:
Polar patterns:
Common name: Knif Audio K804
Production Status: In production
The K804 is a large diaphragm vacuum tube condenser microphone. It uses a Telefunken EF804S valve coupled to a Lundahl output transformer via a Mundorf thin foil capacitor. No electrolitics are used in the signal path. The power supply allows pattern selection from omnidirectional to bidirectional with intermediate steps for a total of nine settings. The microphone also features a switchable -15 dB attenuation Pad and Mogami cabling. The K804 can be ordered with a choice of different capsules. Power supplies are available in 1, 2 and 5 channel versions.
Electrical Characteristics
Frequency Response
Hz - kHz
Output Sensitivity
mV/Pa
Max SPL
Max SPL, THD:
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
dB-A
Output Impedance
-
Recommended Load
Powering
Supply Current
mA
Alternative Powering
Tube Brand
Telefunken
Switchable Options
Pad
Filter/EQ
Physical Characteristics
Connector
7-pin
Connector notes
Available Colours
Weight
Length
Min diameter width
Max diameter
Depth
Accessories
Included
Optional