Explore inspiring sonic versatility at the highest fidelity for your recording sessions with the Blue Bottle Mic Locker, a tube condenser microphone system with four interchangeable cardioid capsules. The included capsules deliver expressive textures ranging from crisp and modern to vibe-heavy vintage, giving you the power to capture vocals and a variety of instruments with the perfect complementary sound.

The quick-change bayonet capsule mount lets you swap capsules without having to power down the microphone, making it incredibly easy and efficient to audition different mic tones. Plus, an entire family of Bottle Cap mic capsules is available should you want to add more tonal variations and polar patterns to your palette.

With discrete Class-A circuitry, an EF86 vacuum tube, a custom transformer, and specially designed power supply with adjustable sensitivity, the Bottle provides premium analog character and performance at every point.

Four Iconic Mic Capsules

The Bottle Mic Locker includes four Bottle Caps, each delivering its own sonic inspiration. The B0 gives you a bright, silky tone that's perfect for vocals. The B6 offers crisp "modern presence" for larger-than-life vocals, piano, percussion, and more. Go back in time with the B7 for big vintage tube tones, or use the B8 for excellent detail on a wide range of sound sources.

Versatility for Every Session

Shoot out all four capsules to find the right sound, layer tracks with different capsules for richer, larger-than-life mixes, and explore new tones for your instruments—all with one portable package. The system comes housed in a road-ready, velvet-line SKB hardshell case complete with the Bottle microphone, four capsules, and a power supply. Plus, you can always expand your capsule collection for endless inspiration via the entire family of Bottle Caps (mic capsules other than the B0, B6, B7, and B8 are available separately).

Always Get the Right Tone

Featuring four interchangeable Bottle Caps that deliver distinct tonal characteristics, the Bottle Mic Locker enables any recording engineer to accomplish a full vocal mic shootout with a single mic on a single stand. Simply hot swap (no power off/on needed) between capsules to find the sound that brings out the magic in any vocal performance; the bayonet capsule mount makes changing capsules quick and easy.

Power Supply with Adjustable Sensitivity

Power Stream power supply offers a nine-step polarization switch for sensitivity selections. Set at the top (zero), the microphone capsule is set at 60 volts for the suggested performance. When the switch is tuned counter fully clockwise, the polarization voltage is reduced to deliver a 6 dB lower output for louder signal sources. When turned fully clockwise, the polarization voltages are increased, delivering up to 4 dB more output for quieter sound sources.

Vacuum Tube Amplifier

The Bottle vacuum tube amplifier consists of a classic common cathode circuit using a current source for the plate load, rather than the more commonly used simple resistor. The amplified signal is taken from the plate and fed through a high-quality polypropylene capacitor, bypassed by a smaller value polystyrene capacitor (Russian MIL spec), and output to a Blue custom hand-built transformer. Both capacitors have a low dielectric absorption coefficient and a low equivalent series resistance. These parameters are essential to high-end audio and are not present in lower priced microphones. All of the Bottle's internal wiring is Teflon-insulated, oxygen-free copper.

Champagne Tube Microphone Cable

Designed collaboratively by Blue and an engineer with over 30 years of experience in the audio cable industry, the Champagne tube microphone cable uses premium proprietary materials such as two-conductor twisted pair, tinned copper braid, and five additional 24-gauge conductors. The result is a top-tier blend of performance and protection.

Specifications:

• Sound Field: Mono
• Operating Principle: Pressure Gradient
• Capsule: Condenser
• Polar Pattern: Cardioid
• Circuitry: Tube
• Pad: None
• Frequency Range: 20 Hz to 20 kHz
• Maximum SPL Cardioid: 134 dB SPL
• Impedance Cardioid: 200 Ohms
• Load Impedance: 1000 Ohms
• Sensitivity Cardioid: 20 mV/Pa at 1 kHz
• Dynamic Range Cardioid: 126.5 dB
• Signal-to-Noise Ratio Cardioid: 56.5 dB A-Weighted
• Equivalent Noise Level Cardioid: 7.5 dB A-Weighted
• Output Connectors (Analog): 1 x XLR 7-Pin (on Mic), 1 x XLR 3-Pin (on Power Supply)
• AC Input Power (PSU): 115 to 230 VAC, 50 / 60 Hz