Helios

Common name: Sontronics Helios

Production Status: Discontinued / Vintage

The Helios is a large-diaphragm condenser microphone fitted with a 1.07 dual diaphragm capsule. It is similar in design to the Orpheus but has valve electronics and fully-variable polar patterns. The pad and filter switches are mounted on the PSU. Includes power supply, cables and wooden storage case.

Electrical Characteristics

Frequency Response
20Hz - 20 kHz
Output Sensitivity
20 mV/Pa
Max SPL
125
Max SPL, THD:
0.5
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
18 dB-A
Output Impedance
200Ω
Recommended Load
Powering
Proprietary unit
Supply Current
mA
Alternative Powering
Tube Model
ECC83/12AX7

Switchable Options

Pad
10dB
Filter/EQ
low cut

Physical Characteristics

Connector
8-pin MIL
Connector notes
8-pin connector on microphone body
Available Colours
Weight
900 g
Length
204 mm
Min diameter width
Max diameter
Depth

Accessories

Included
PSU, cables, wooden case.
Optional