Designed for speed and transparency, the Stage Two vacuum tube microphone’s transformerless, Class A discrete tube amplifier circuit delivers low noise, superb transient response and utilizes a single hand-selected ECC88 vacuum tube. Like the Bottle, the Stage Two has the ability to hot-swap up to nine different capsules for the ultimate recording experience. The Bottle Rocket Stage 2 is powered by Blue’s innovative Powerstream power supply, which not only ensures ultra-stable performance but features a soft-start feature for maximum tube life and minimal startup time.
Features:
- Tube microphone system utilizing the Bottle Caps
- Comes with B8 capsule, custom-built flight case, tube mic cable, shockmount and Powerstream power supply
- Transformerless Class A discrete amplifier circuit
- Utilizes ECC88 vacuum tube
Bottle Rocket Stage II:
Transducer Type: Pressure Gradient or Pure Pressure (Capsule-dependent)Polar Patterns: Cardioid, Omni, Figure 8 (Capsule-dependent)
Frequency Response: 20Hz - 20kHz
Sensitivity: 50.0 mV/Pa (+/- 10mV depending on capsule) at 1kHz (Pa = 94 dB SPL)
Output Impedance: 50 Ω
Rated Load Impedance: Not less than 1kΩ
Noise Level A-Weighted: Not more than 9 dBV - 14 dBV (IEC 651) (capsule-dependent)
Maximum Output: +28 dBV = 25.11 Vrms (2.5kΩ, 1% THD)
Maximum SPL: 139 dB SPL (2.5kΩ, 1.0 % THD)
Dynamic Range: 130 dB (@ 2.5kΩ)
Power Requirement: External Powerstream Unit
Current Draw: Heater (6V DC) 300 mA, Plate (120V) 5mA - Typical
