AudioLineOut Studio Six Headphone Amplifiers was recalled on August 27, 2026 in cooperation with the U.S. Consumer Product Safety Commission because when the amplifiers are used with aftermarket metal base tubes, the bare metal can become electrified, posing a risk of serious injury or…
This recall involves Studio Six Headphone Amplifiers with model ST6. The amplifiers are black or silver. The amplifiers measure 15-3/4 inches high by 12 inches wide. The height for the lower level of the unit, top to bottom, is 5-3/4 inches; the height from the top of the upper level to bottom of the unit is 20-3/4 inches. In the front of the unit, there are four audio connectors for headphones. In the back, there are three sets (L and R) of RCA inputs. Also in the back is a connector for an auxiliary power device.
Units affected: About 90
Where it was sold: Sold At: Independent stereo stores nationwide and online at aloaudio.com from December 2014 through December 2022 for about $3,900.
Compare the codes above against the label on your product — usually on the bottom, the back panel, or the packaging. If your unit isn't listed, it is not part of this recall.
When the amplifiers are used with aftermarket metal base tubes, the bare metal can become electrified, posing a risk of serious injury or death from electrocution.
Consumers should stop using the recalled amplifiers immediately and contact AudioLineOut for a free repair. Consumers should contact AudioLineOut at support@aloaudio.com for a prepaid shipping label to ship back the product for repair. Alternatively, consumers can utilize the originally supplied vacuum tubes. (Remedy: Repair)
Contact: AudioLineOut at 971-279-4357 from 8 a.m. to 5 p.m. PT Monday through Friday, email at support@aloaudio.com, or online at https://aloaudio.com/ and click on “Safety Notice” or go directly to https://aloaudio.com/pages/studio-six-headphone-amplifier-safety-recall for more information and to fill out a contact form.
Not sure what you're entitled to? Read our guide: what to do if your product is recalled.
Always confirm details on the official notice from the U.S. Consumer Product Safety Commission before acting.
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