Specifications

deteriorate the valuable microphone tube. After approximately
80 seconds-- when the cathode is fully heated-- the plate voltage
is gradually applied starting from 10V to 120V (or other voltage
depending on the microphone circuitry). During this time the
output of the microphone is muted.
After about three minutes the tube is settled in its correct operat-
ing mode, the muting is disabled, and audio is present. Both the
heater and the plate voltages are ultra stable and non-dependent
on AC main changes or fluctuations. For AC rectification, the
Power Stream uses only high frequency diodes to obtain the pur-
est DC possible. And most importantly, the plate voltage supply is
of low impedance, which improves sonics and clarity.
Power Stream Pattern Select Switch
All the potentiometer switches on the Power Stream are discrete
military type with enclosed contacts. The nine-position switch
on the Cactus power supply allows you to determine the pickup
pattern selection for your microphone capsule ranging from
omnidirectional (fully-counter clockwise) to figure of eight (fully
clockwise).
Power Stream AC Voltage
The Power Stream operates at either 110 or 240 AC voltage. Your
power supply has been set for the proper voltage required in your
country. If a voltage change is needed, remove the fuse holder
located above the AC receptacle. Reinsert the specified fuse (AC
110V 500mA or AC 220V 250mA) and select the correct voltage
(110 or 220) using the voltage selector switch.
Champagne Tube Microphone Cable
All microphone cables are reactive, energy storing devices with
independent voltage and current components. The subtlest as-
pects of recorded sound are dependent on the physical construc-
tion of these cables, as well as size, material, and wire placement.
To realize the perfect blend of the best materials, the Champagne
tube microphone cable was designed collaboratively by Blue and
an engineer with over thirty years of experience in the audio
cable industry.
This top-quality cable uses only finest available virgin proprietary
materials, including two-conductor 22 awg with 60 strands of 40
awg. The two-conductor pair is twisted to totally eliminate noise,
and covered with the finest tinned copper braid for additional
protection. To guarantee voltages and power, the Champagne cable
incorporates five additional 24-gauge conductors. The result is a
tube microphone cable that unveils every nuance captured by the
Cactus, to tickle the taste buds as well as warm the coldest critic.
Technical Specifications:
Transducer Type • Vacuum Tube Condenser
Polar Patterns • Multipattern
Frequency Response • 20Hz – 20KHz
Sensitivity • 18.0mV/Pa at 1kHz (1 Pa = 9 4dB SPL)
Output Impedance • 50Ω
Rated Load Impedance • Not less than 1 kΩ
Maximum SPL • 134 dB SPL (2.5kΩ, 0.5% THD)
S/N Ratio • 84 dB–A (IEC 651)
Noise Level • 10 dB–A (IEC651)
Dynamic Range • 124 dB (@ 2.5kΩ)
Power Requirement • Cactus Power Supply Unit 115/230 VAC, 50/60 Hz
Weight • 800g
Dimensions • 235mm x 50mm x 30mm
Recommended Optional Accessories:
• The Pop (universal windscreen)
• Quad Cable
• S2 Shock
Included Accessories:
• S2 Shock
• Flight case
• IEC cable
• Champagne Cable
• Powerstream