The AKG SolidTube, the flagship of the Project Studio Line, is the first microphone that combines the sound of classic vacuum tube technology and the benefits of advanced solid state componentry at an affordable price. Mechanical ruggedness, high SPL capability, and low self noise are as natural SolidTube features as its warm tube sound. The heart of the SolidTube is the ECC 83 (12AX7) vacuum tube. It provides excellent transfer characteristics and is readily available from musical instrument dealers carrying spare parts for guitar amps. A ground lift switch on the power supply eliminates unexpected ground loops quickly and easily. Standard accessories include a spider type shock mount, pop screen, power supply, cable, and strong carrying case.

Tube microphones are very popular for their warm sound. The SolidTube emphasizes even harmonics and adds low-level distortion that the ear perceives as an enhancement to the sound.

Features:

• Dedicated cardioid pattern with response tailored to solo vocals and instrumentals in the modern studio
• Wide dynamic range of 110 dB in the studio
• Integral 20-dB pre-attenuation switch
• Low frequency cut at 100 Hz
• Includes aluminum flight case, with all necessary cabeling, shock mount and windscreen
• Transducer type: 1 in. (25 mm) diaphragm - pressure gradient
• Diaphragm material: Gold-sputtered mylar foil
• Tube type: ECC 83 (12AX7)
• Frequency response: 20 Hz - 20 kHz
• Polar pattern: Cardioid
• Impedance: 200 ohms +/-25%
• Recommended load impedance: greater than 600 ohms
• Sensitivity at 1 kHz: 20 mV/Pa; -34 dB (dB re 1 V)
• Equivalent noise level (A-weighted): 20 dB-A (DIN 45412)
• Sound pressure level for 3% THD: 130 dB (145 dB SPL with - 20 dB pre-attenuation)
• Dynamic Range: 110 dB
• S/N ratio re 1 Pa (A-weighted): 74 dB
• Pre-attenuation switch: -20 dB
• Low frequency roll-off: 12 dB/octave below 100 Hz
• Current consumption: less than 2 mA
• Microphone size: 2.5'' (63.5 mm) diameter; 8.6'' (219 mm) length
• Microphone net weight: 2 lb. (0.92 kg)