ESC
EQP-1A

EQP-1A

ManufacturerPultec
FunctionEQ (Program Equalizer)
Produced1951 - 1980s
CountryUSA
Form Factor19" Rackmount
Signal PathAnalog Hardware
Dimensions19" x 5¼" (3U) depth 7¾"
Weight15 lbs
Power117 V, 50-60 cps, 25 W
Frequency Response20 - 20.000 cps
Channels1 Channel
Connections
  • input · Terminal Block
  • output · Terminal Block
Controls
  • LOW FREQ selector (4 pos.) · Rotary Switch · 20, 30, 60, 100 cps
  • LOW FREQ boost · Rotary Pot
  • LOW FREQ atten · Rotary Pot
  • HIGH FREQ selector (7 pos.) · Rotary Switch · 3, 4, 5, 8, 10, 12, 16 kcs
  • HIGH FREQ boost · Rotary Pot
  • ATTEN SEL (3 pos.) · Rotary Switch · 5, 10, 20 kcs
  • HIGH FREQ atten · Rotary Pot
  • BANDWIDTH · Rotary Pot
  • ON/OFF · Rotary Switch
  • IN · Toggle Switch
NotesINPUT IMPEDANCE: 600/250/150 ohm. OUTPUT IMPEDANCE: 600/300/150 ohm. Noise: 92 db below + 10 dbm. Distortion: 0.15% at + 10 dbm into 600 ohms. TUBES: 1x ECC-82 / 12AU7, 1x ECC-83 / 12AX7, 1x 6X4