1 4
QUAGLIARDI PRO AUDIO  |  SKU: 25028

QUAG-501+

500 Series Preamps

500 series preamp module featuring custom transformers, XRELmode for color options and a front-facing combo jack for XLR and DI input

$975.00 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

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 501+ Preamp is the blue crème de la crème of 500 series preamps, designed to deliver both pristine transparency and bold character on demand. At lower and medium gain levels, it provides a clean, open response that captures every nuance of your source. Push it harder, and the 501+ adds a rich, colorful saturation that brings depth and personality to vocals, instruments, and more.

Built around a permalloy transformer and the legendary 2520 operational amplifier, the 501+ combines classic analog warmth with modern reliability. A convenient front-panel combo connector allows quick connection of microphones via low-impedance XLR or instruments in high-impedance DI mode, making it versatile for both studio and live applications.

Compact yet powerful, the 501+ Preamp is an essential addition for any producer, engineer, or musician seeking professional-grade tone shaping in a 500 series format.

Features

2-slot horizontal 500 Series chassis designed to fit seamlessly into a standard 1U rack space

Recessed slots accommodate and protect all standard 500 Series modules

Delivers up to 300mA of current per voltage rail for stable power to each module

Rear-panel Stereo Link switch for flexible routing between modules

Per-slot Ground Lift switches eliminate unwanted 60-cycle hum and prevent ground loop issues

Compact and durable design, perfect for studio racks or mobile integration

Provides a clean, reliable power solution while keeping modules neatly racked and easily accessible

Specifications

Core Features

Transparent to Colorful: Clean and clear at low to medium gain levels, Adds warmth and harmonic richness when driven into saturation

Transformer & Op-Amp Based: Built around a Permalloy transformer, Equipped with the legendary 2520 discrete operational amplifier for classic analog tone

Connectivity

Front Panel Combo Connector: XLR for low-impedance microphone sources, 1/4" Hi-Z input for direct instrument (DI) use

Format

500 Series compatible

Designed for modular studio racks and portable setups

Payment & Security

  • American Express
  • Apple Pay
  • Diners Club
  • 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