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207D

207D Tube Microphone / Instrument Preamp

The Model 207D is an affordable, audiophile quality tube mic preamp that meets or exceeds the performance of preamps costing many times more. The Model 207D will reveal the subtlety and power of vintage condensers, ribbons, electrets, and popular dynamic mics. Even the world's most respected microphones will sound better. Plus, with its AES/EBU and S/PDIF digital outputs and Word Clock connection, the Model 207D offers direct digital connection throughout your signal chain, with up to 96kHz sampling rates. The instrument inputs also are quieter and have more gain, than conventional instrument preamps. The MicLimT circuitry, previously only available in our flagship Model 1100 2 channel and Model 1788 8 channel mic preamps, makes the Model 207D virtually crashproof - making it a perfect front end for digital recorders. By combining the best traits of tube and solid state circuitry, the Model 207D captures a sound that is warmer, fuller and more true to life. Whether you are recording, mixing live, broadcasting or webcasting, the signal has to travel a long journey before its final delivery. So give your sound a great start with the Aphex Model 207D Tube Mic/Instrument Preamp with Digital Outputs.

BENEFITS


  • Dramatically improves microphone performance Greater dynamic range and frequency response
  • Dramatically improves instrument performance Fuller, more realistic sound
  • Improved Detail and Intelligibility Record hotter tracks with the highest possible resolution
  • Tighter lows; clearer up-front mids; Strong highs without edginess
  • MicLim™ offers up to a 20dB increase in dynamic range and makes the Model 207D virtually crashproof
  • Direct connection to digital mixers, DAW's and other digital equipment

 

FEATURES

  • Two independent low noise channels of tube amplification
  • AES/EBU and S/PDIF digital outputs with up to 96k sampling rates
  • Microphone and Instrument inputs on each channel
  • MicLim™ on each channel
  • Mic Input: 20 to 65dB of continuously variable gain
  • Instrument Input: -infinity to 65dB of continuously variable gain
  • Switchable 48 volt Phantom Power with ramp up feature
  • Delayed Turn On
  • Polarity, 20 dB pad and Low Cut Filter switches
  • LED Headroom Meter Display for each channel
  • Switchable -10 dBv / +4 dBu operating level
  • Balanced 3-pin and 1/4" TRS Inputs and Outputs
  • Internal Switch Mode Power Supply
AUDIO    
  Frequency Response +0, -0.5dB 30Hz - 30 kHz
  EIN -129dBu (input shorted)
  Crosstalk (10 Hz - 22kHz) -79 dB or better
  THD (10 Hz-22kHz at -11dBfs) < 0.18%
  Tube Type 12AT7 / ECC81 Dual Triode
MIC INPUT IF OPERATING LEVEL SET TO +4 dBu IF SET TO -10dBv (-7.8dBu)
  Connector XLR-3F same
  Type Transformerless, NPN active balanced same
  Balanced 2k ohms nominal same
  Maximum Level 0 dBu +12.5 dBV (+14.8 dBu)
  CMRR Greater than 70dB @ 60 Hz same
  Nominal Preamp Gain 20 to 65dB minus OUTPUT TRIM loss 8 to 53 dB minus OUTPUT TRIM loss
INSTRUMENT INPUT    
  Connector 1/4" Phone Jacks same
  Type Unalanced JFET amp same
  Input Z 1M ohm nominal same
  Maximum Level 10V RMS same
  Nominal Preamp Gain infinity to 65dB minus OUTPUT TRIM loss infinity to 38dB minus OUTPUT TRIM loss
OUTPUT    
  Connector XLR-3M and 1/4" TRS Phone Jacks  
  Type Impedance balanced (may be used unbalanced)
  Output Z Balanced XLR: 66 ohms - TRS: 1200 ohms  
  Output Z Unbalanced XLR: 33 ohms - TRS: 600 ohms  
  Nominal Level +4 dBu -10dBv (316 mVRMS)
  Maximum Level +21dBu Unloaded +6.75 dBV Unloaded
  Output Trim 0 to -12 dB same
INSERT    
  Connector 1/4" TRS Phone Jack  
  Send Tip  
  Return Ring  
  Nominal Operating Level -10dBv (316 mVRMS)  
  Point of Insertion Between front-end and Tube Output Stage
OTHER SPECIFICATIONS
  Power requirements 90-250 VAC 50-60 Hz 12W  
  Dimensions 19"W x 1.75"H x 8.25" D   1 Rack U  (482.6mm x 44.5mm x 209.6mm)
  Depth behind front panel 7.5" (190.5 mm)
  Net Weight 6 lbs (2.73 kg)  
  Shipping Weight 9 lbs (4.1 kg)  
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