Pultec EQM-1A
Passive Tube Mastering EQ (stepped ELMA controls)
Equalizer$4,895Manufacturer list price
Specifications
- Type
- Equalizer
- Description
- Passive Tube Mastering EQ (stepped ELMA controls)
- Topology
- passive LC program EQ, tube makeup gain, stepped (21-position ELMA switch) controls for mastering recall
- Signal path
- Analog
- Channels
- 1
- Channel format
- mono
- Form factor
- 19-inch rack, 3U
- Rack units
- 3
- Powered
- yes
- Impedance (Ω)
- 600 (in) / 50 (out)
- Country of manufacture
- USA
Details
Controls: Low shelf boost/attenuate 20/30/60/100 Hz; high peak boost 3/4/5/8/10/12/16 kHz; high shelf attenuate 5/10/20 kHz; bandwidth control - all via 21-position (bandwidth 11-position) stepped ELMA switches with metal-film resistors, 0.5 dB increments
I/O: transformer-balanced input/output; input impedance ~600 ohms, output impedance ~50 ohms
Notes: Current maker Pulse Techniques LLC. Mastering-control version of EQP-1A: identical circuit but potentiometers replaced with stepped ELMA rotary switches for exact recall/stereo tracking. Tube complement: 12AU7, 12AX7, 6X4. Same circuit/topology as EQP-1A - separate row per brief (different control hardware/product line).