The Pultec EQP-1 filter is a classic equalization unit in the form of a rackable piece of outboard gear. It is an all analog unit and it will take up two rack space units.
The configuration of the Pultec EQP-1 is very easy to follow and to use. It basically has two bands - one for low frequency and one for high frequency. For each of these, it has a knob to choose the exact frequency, and knobs for boost and attenuation. It also has a bandwidth knob that applies to both of the bands and has an attenuation selector that also applies to both of the bands. I don't have the manual for this EQ, as it is old and rare, but I never needed it and if you have ever used a basic EQ you should have no issues with this.
The sound quality of the Pultec EQP-1 is awesome in every aspect. It is an effective EQ, with all the parameters needed to do the job well. It has become a classic piece of gear for one reason, and that is because it just sounds so good. I have used this on everything from lead vocals to guitars and drums, always with great results. In terms of outboard EQs, it doesn't get much better than this.
I've been using the Pultec EQP-1 filter for about two years and whenever I have access to it, I always use it. It is extremely expensive now because of how rare and coveted they are, so I would only recommend trying to purchase this to those who are really looking to put together or add to a top flight professional studio. For the rest of us, we are lucky to be able to use these. Overall, the Pultec EQP-1 is one of the best EQ/filters ever made.
No manual, just empirical: We do everything by ear as cases to be treated.
I pricipalement used on vocals. Then I rebooste kicks, synths, guitars and acoustic bass. Lately on stems, return in Pro Tools.
I use since August 2013. A small adjustment period is necessary because there is a tendency to start to add in more than enough, knowing that EQ is used sparingly.
Why this review? Sound: Here's what I can share with you in terms of sensations: The Pultec subtractive removes any feeling of aggressive medium inherent in some digital processing (I get to remix tracks sometimes inadequate, often very aggressive, "harsh "say the Anglo-Saxon). To give a little air on vocals (12k or more) is a pure delight. I use it more on stems to put some items in my mixes, this playing on the midrange frequencies that add a je ne sais quoi, a patina very nice, warm, analog and some would say.
In the end, very complementary with EQ Neve or SSL because of those three is the Pultec sweetness incarnate.