Recall #26-720 · Published August 27, 2026

AudioLineOut Studio Six Headphone Amplifiers

AudioLineOut Recalls Studio Six Headphone Amplifiers Due to Risk of Serious Injury or Death from Electrocution Hazard

CPSC published a recall notice for Studio Six Headphone Amplifiers from AudioLineOut on August 27, 2026. CPSC identifies this hazard: 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. The official remedy states: 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.

Recalled Studio Six – Silver (top)
Recalled Studio Six – Silver (top)
Image: CPSC recall notice

What to check on the product label

Compare the model on your label, then check any serial numbers, date codes, and exclusions in the notice. A model match alone does not confirm that your unit is included.

The CPSC data does not provide a discrete model-number list for this record. Compare the product description and identification details on the official notice.

Which products are included?

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.

Confirm these details on the official CPSC notice

Why it was recalled

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.

Incidents and injuries

None reported

Official remedy

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 type: Repair

Product and sales details

Brand
AudioLineOut
Product type
Speakers
Recall number
26-720
Units
About 90
Manufactured in
United States
Sold at / sales period
Sold At: Independent stereo stores nationwide and online at aloaudio.com from December 2014 through December 2022 for about $3,900.
Distributor
AudioLineOut LLC, of Portland, Oregon

Studio Six Headphone Amplifiers

CPSC product type: Hi-fi and Stereo Equip., Amplifiers, Speakers

Recall contact information

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.

Verify phone numbers, hours, and websites on the current CPSC notice before contacting the firm.

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