Pultec EQP-1S3 Program Equalizer – Pulse Techniques Reissue – Excellent Condition

Description

Up for sale is a flawless Pultec EQP-1S3 two-band program equalizer in Excellent condition. Hand-built by Pulse Techniques, this is the definitive, officially licensed recreation of the legendary vintage tube EQ.

The EQP-1S3 is a rare and highly sought-after variant of the classic EQP-1A. It features the exact same legendary line amplifier stage, but offers unique, modified frequency curves and a selectable peak boost shelf, making it an incredibly versatile secret weapon for tracking, mixing, and mastering.

The Sonic Character & Differences from the EQP-1A

While it delivers the same massive, three-dimensional tube warmth and famous "low-end trick" (simultaneous boost and attenuate) as the standard EQP-1A, the EQP-1S3 introduces key enhancements:

• Different Low-Frequency Points: Offers 30, 50, 100, and 800 Hz shelf frequencies (swapping out the EQP-1A's 20 and 60 Hz options for more mid-bass punch and low-mid flexibility).
• High-Frequency Shelf Option: The high-frequency boost section gives you a choice between a traditional Peak curve or a smooth High Shelf boost.
• Expanded High Frequencies: Adds 1, 2, 3, 4, 5, 10, and 12 kHz cut/boost selections alongside a 5 and 10 kHz shelf, perfect for adding silk, air, and massive presence to vocals, acoustic instruments, or the entire mix bus.

Key Features & Technical Specs

• 100% Authentic Reproduction: Built to the exact specifications of the original vintage units using custom-wound Triad input, interstage, and output transformers.
• Tube Complement: Premium, quiet 12AU7, 12AX7, and 6X4 vacuum tubes running on a true linear power supply.
• Gain Stage: Passives-only EQ section followed by a high-headroom, discrete tube gain restoration amplifier stage.
• Chassis: 3U rackmount design with the iconic vintage Pultec blue-grey faceplate and premium, heavy-duty chicken-head knobs.

Condition

• Cosmetic: Excellent condition. The faceplate is pristine, text markings are crisp, and the chassis shows virtually no rack rash. Maintained meticulously in a smoke-free, climate-controlled professional studio environment.
• Functional: 100% fully operational. Every rotary switch stepped frequency selector is quiet, the potentiometers are silky smooth, and the tube stage runs incredibly quiet with vast headroom.

What’s Included

• Pultec EQP-1S3 Rack Unit (Pulse Techniques)
• IEC Power Cable

Shipping, Insurance & Terms

• Origin: This item ships directly from the United States.
• Carrier: Shipped via UPS Ground for reliable, traceable domestic transit.
• Full Insurance: Premium declared-value insurance coverage will be added to the shipment to guarantee your investment is completely protected.
• Costs & Duties: The buyer assumes full responsibility for all calculated shipping costs, as well as any applicable local import duties, VAT, or customs clearance fees if purchased internationally.
• Packing Standards: High-end boutique studio processors require maximum protection. The unit will be wrapped securely, cushioned with dense foam inserts, and shipped inside a heavy-duty, crush-resistant shipping box.