We’ll be closed June 24th for St-Jean-Baptiste Day ⚜️ and July 1st for Canada Day 🇨🇦.
1 2
LINDELL AUDIO

Vintage OPA 1731

Outboard Parts

Vintage style op-amp, smooth and punchy sound, Melcor 1731 inspired design, pin compatible, plug-and-play for 500 series gear

$99.00 CAD
Shipping calculated at checkout.
Talk to our experts
Our team of experts is here to support you.

Delivery & Shipping

Free Shipping in Canada with orders over $200. Conditions apply. View details here.

Financing

Flexiti

Enjoy flexible financing options, including 0% financing on selected products. Quick application and convenient payment plans available.
Click here for more info.


Affirm

Break your purchase into easy monthly payments, quick approval and no hidden fees.
Click here for more info.


Equilease

Ideal for larger purchases, Equilease offers customized leasing solutions to fit your business needs.
Click here for more info.

Returns & Policy

You can review our terms and conditions here

Description

The VINTAGE OPA 1731 is a vintage-style operational amplifier designed to recreate the classic character of the original Melcor 1731, widely recognized as the predecessor to the well-known 2520 op-amp design. Built for engineers and audio professionals seeking classic analog tone, the VINTAGE OPA 1731 delivers a smooth yet punchy sound signature that adds warmth, depth, and musical character to recording, mixing, and signal processing applications.

Designed as a direct pin-compatible replacement, the VINTAGE OPA 1731 offers straightforward plug-and-play installation for compatible equipment including the 6X-500, 7X-500, PEX-500 Rev.2, and 18Xs MkII. Its fully compatible format allows users to easily customize the tonal response of their gear without requiring modification or additional setup.

Ideal for studio environments and analog audio enthusiasts, the VINTAGE OPA 1731 provides a classic sonic character that complements vocals, instruments, and mix processing with a rich and dynamic response inspired by vintage recording equipment.

Features

Vintage OPA 1731
Vintage-style operational amplifier inspired by the classic Melcor 1731 design, created for professional audio processing applications.

Classic Vintage Sound Character
Delivers a smooth and punchy analog sound signature ideal for musical tone shaping and vintage-style audio coloration.

Inspired by the Melcor 1731
Based on the legendary Melcor 1731 op-amp design, known as the predecessor to the classic 2520 style amplifier.

Plug-and-Play Compatibility
Pin compatible design allows simple installation without modification in supported hardware.

Designed for 500 Series Systems
Compatible with 6X-500, 7X-500, and PEX-500 Rev.2 audio units for flexible upgrade options.

18Xs MkII Compatibility
Supports direct integration with 18Xs MkII systems for expanded professional audio applications.

Professional Analog Audio Upgrade
Ideal for engineers seeking vintage-inspired warmth, punch, and character in recording and mixing environments.

Discrete Analog Performance
Built to enhance audio depth and musical response in professional studio signal paths.

Specifications

General Specifications
Device Type: Vintage style operational amplifier
Op-Amp Style: Melcor 1731 inspired design
Sound Character: Smooth
Sound Character: Punchy
Compatibility Type: Pin compatible
Installation Type: Plug-and-play

Compatibility Specifications
Compatible Devices: 6X-500
Compatible Devices: 7X-500
Compatible Devices: PEX-500 Rev.2
Compatible Devices: 18Xs MkII

Design Specifications
Circuit Style: Vintage op-amp design
Reference Design: Melcor 1731 predecessor to 2520

Included Information
Product Name: VINTAGE OPA 1731

Payment & Security

  • American Express
  • Apple Pay
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Back to top