Mercury EQP2 MKII is a dual tube program equalizer in a 3U chassis: two independent mono paths in Pultec EQP-1A topology, with transformer balancing on input and output. This is the version for people working on a stereo bus rather than single tracks.
An equalizer that adds something even when you boost nothing
A Pultec works differently from an EQ in a DAW: the filters are passive, so they only subtract, and the lost level is made up by a tube gain stage. It is that stage, not the curve, that adds the characteristic density — which is why the unit changes the sound even with the controls set flat.
Two paths matched for bus work
On a stereo bus two separate mono equalizers always differ at least slightly, and every difference between channels shifts the stereo image. A dual-mono build in one chassis solves that at the source. Input and output transformers break ground loops and add their own audible layer — on a full mix that is not a detail.
KEY FEATURES
- Two independent mono channels in one chassis
- Passive circuit in Pultec EQP-1A topology
- Transformer-balanced inputs and outputs
- 3U chassis for rack mounting
- Stereo bus work without channels drifting apart
- Designed and built by Mercury Recording Equipment
TECHNICAL SPECIFICATIONS
- Type: tube program equalizer, passive filters
- Channels: 2 (dual-mono)
- Reference circuit: Pultec EQP-1A
- Inputs and outputs: balanced, transformer-coupled
- Format: 3U rack
- Revision: MKII
