This auction is for a vintage AKG, model D310, Cardioid Dynamic Microphone with XLR connector.

Technical data

• Type: Pressure gradient

• Directional characteristics: Frequency independent cardioid

• Frequency range: 60 to 18,000 Hz

• Sensitivity at 1,000 Hz: 1.3 mV/Pa (0.13 mV/µb) ≅ −78 dBV, ref. 1 µb

• Impedance at 1,000 Hz: 270 ohms

• Max. sound pressure for THD of 1%: 50 Pa ≅ 128 dB SPL

• Hum sensitivity at 50 Hz: 3 µV/5 µT
  at 100 Hz: 6 µV/5 µT

• Permissible climactic conditions: Temperature range: −10° C to +65° C
  Relative humidity: 90% (20° C to 65° C)

• Connector: 3-pin XLR type

• Housing material: die-cast zinc alloy, non-reflective nickel plated

• Dimensions: 45 × 190 mm (1.8 × 7.5 inch)

• Net weight: 240 g (8.5 oz) 

Used, good condition. Checked and tested. Ohio residents must add 7.25% sales tax. Buyer pays shipping. PayPal, MC and VISA accepted. OH PB Lic. #100051    3