Magnepan MG .5 QR Speakers

Description

The Magnepan MG .5 QR is a compact, two-way planar-magnetic loudspeaker from Magnepan’s Magneplanar range. Instead of conventional cone drivers, it uses a broad, thin diaphragm driven by magnets, with a quasi-ribbon element for high frequencies. The design is dipolar: sound radiates from both the front and rear of each panel. That open radiation pattern is a defining feature of Magnepan speakers and means placement in the room can strongly influence the sound.

The available MG .5 QR specifications describe a speaker with a stated frequency response of 50 Hz to 26 kHz, within ±3 dB, and 86 dB sensitivity. Its nominal impedance is listed as 4 ohms, and the recommended amplifier range is 40–150 watts. Those figures suggest it will benefit from a stable amplifier comfortable driving a 4-ohm load. The 50 Hz lower response limit also indicates that listeners seeking deep, powerful bass may want to add a subwoofer, depending on room size and listening preferences.

I could not locate an independent professional review of the MG .5 QR itself with attributable listening-review quotes. To avoid presenting another model’s review as if it were about these speakers, here are two quotes from a Stereophile review of the larger MG1.6/QR, offered only as context on the broader Magnepan design approach. Reviewer Brian Damkroger praised the MG1.6/QR’s “coherence and the wonderful disappearing act,” and called it “a spectacularly enjoyable loudspeaker.” Those comments do not establish how the smaller MG .5 QR sounds, but they describe qualities that listeners often seek in Magnepan’s panel-speaker designs.

The MG .5 QR’s panel format can appeal to listeners who value a spacious presentation and the visual simplicity of slim speakers. In practical terms, however, setup matters: allow room for the rear radiation, experiment with distance from the walls and listening position, and make sure the panels are stable and unobstructed. As with any older used loudspeaker, condition is crucial. Check that both panels play evenly across the frequency range, inspect the frames and fabric, and listen for buzzing, intermittent output, or signs of past repair. The model’s age makes a hands-on audition especially worthwhile.

Overall, the MG .5 QR is best considered as a used, niche speaker for someone interested in planar sound and willing to work with placement and amplification. The published specifications are useful starting points, but they do not tell the whole story: room acoustics, panel condition, amplifier compatibility, and listener taste will shape the experience.

• Type: Two-way quasi-ribbon / planar-magnetic loudspeaker
• Frequency response: 50 Hz–26 kHz (±3 dB)
• Sensitivity: 86 dB at 2.83 V, 500 Hz, 1 m
• Nominal impedance: 4 ohms
• Recommended amplifier power: 40–150 watts