Technical Specifications

• CUSTOM WA-12-B-60V EDGE TERMINATED, DUAL-BACKPLATE, ALL-BRASS VINTAGE CK12-STYLE CAPSULE
• CINEMAG USA OUTPUT TRANSFORMER
• JJ SLOVAK 12AY7 VACUUM TUBE
• GOTHAM 5 METER GAC-7, 7-PIN TUBE MICROPHONE CABLE
• WIMA, SOLEN FRENCH, AND POLYSTYRENE CAPACITORS
• POLAR PATTERNS: 3 PATTERNS – CARDIOID, OMNI, FIGURE-OF-EIGHT
• FREQUENCY RANGE: 20 HZ~20 KHZ
• OUTPUT IMPEDANCE: 200 OHMS
• MAXIMUM SPL: 132DB  (<0.5% THD)
• RATED LOAD IMPEDANCE: ≥2KOHMS
• S/N RATIO: 80DBA
• EQUIVALENT NOISE: 12DBA (IEC651)
• EXTERNAL IEC GROUNDED PSU
• TOTAL WEIGHT (MIC, PSU, SHOCKMOUNT, CABLES) – 12 LBS
• MIC DIMENSIONS: 247MM X 46MM
• DYNAMIC RANGE: 125DBA
• INCLUDES: MICROPHONE, WOOD BOX, PSU, SHOCK-MOUNT AND GOTHAM CABLE

WA-251 三指向性收音

Omnidirectional全指向式	Cardioid心型指向	Bi-directional雙指向

WA-251 提供了 3 種指向性，做為錄音時的最佳調整，指向性可區分為三類:

• 全指向性 (Omni-directional) 任何一方向來之音源能量均被拾取轉為電能。

• 單指向性 (Uni-directional) 正前方之聲波能量被拾取的比例最大。

• 雙指向性 (Bi-directional) 前方與後方被拾取之能量最大。