The Margules QR-2 Noise Line Suppressor, thanks to its advanced LC filters and high-quality autotransformers, delivers richer tonal balance, greater detail, and quieter backgrounds, creating a truly engaging musical experience

The QR-2 Noise Line Suppressor provides a richer tonal balance, enhanced detail, and quieter backgrounds, allowing you to rediscover your favorite recordings with exceptional clarity and enjoy a truly engaging sound experience.

Equipped with advanced LC filters, high-quality autotransformers, and a proprietary circuit, the QR-2 suppresses high-frequency noise and attenuates power line transients, significantly improving audio quality.

It also corrects DC offset, preventing the mechanical hum produced by the transformers in your audio equipment and provides added protection to your components by acting as a natural peak suppressor.

The QR-2 is the perfect match for Margules line of products, especially the U280 SC amplifier and SF220 preamplifier. However, the QR-2 will enhance the clarity, detail, and resolution of any connected audio or video equipment.

Dedicated LC Filters:

Thanks to its dedicated filters for digital and analog components, the QR-2 enhances tonal richness and balance, as well as detail, dynamics, and soundstage depth.

With three independent, specialized filters for digital and analog signal paths, the QR-2 ensures optimal performance of connected audio and video equipment by preventing signal degradation and rejecting high-frequency noise.

Proprietary circuit and high-quality autotransformers:

The QR-2 features a proprietary circuit and high-quality autotransformers.

These components provide energy reserves for power-demanding equipment, improve system stability, suppress electrical transients, suppresses power line noise, correct DC offset eliminating mechanical hum from audio transformers, and protect your gear against voltage spikes and surges.

Switched AC Outlets:

The QR-2 offers 10 switched AC outlets. These outlets are energized when the AC output of a preamplifier is connected to one of the two unswitched (direct) outlets, maintaining the harmonic integrity of the audio signal and allowing for centralized system power control.