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

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CPSCRecall 26720Electronics & appliances

What to do

Repair

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.
Text from CPSC, unedited.

Contact (CPSC): 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.

Read the official notice on cpsc.gov (opens in a new tab)

Hazard

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.
Text from CPSC, unedited.

Incidents and injuries (CPSC): None reported

Recalled Studio Six – Silver (top)
Recalled Studio Six – Silver (top) Photo: CPSC.

Is it yours? Products and codes

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.
Text from CPSC, unedited.

  • Studio Six Headphone Amplifiers

    Quantity
    About 90

Where it was sold (CPSC): Sold At: Independent stereo stores nationwide and online at aloaudio.com from December 2014 through December 2022 for about $3,900.

More photos from CPSC

  • Recalled Studio Six – Silver (back)
    Recalled Studio Six – Silver (back)
  • Recalled Studio Six – Black (front)
    Recalled Studio Six – Black (front)
  • Recalled Studio Six – Black (back)
    Recalled Studio Six – Black (back)

About this record

Issued by
U.S. Consumer Product Safety Commission
Firm
AudioLineOut

If someone was hurt or swallowed something: call 911, or Poison Help at 1-800-222-1222.

About this recall

What is the hazard?

CPSC states: “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.”

What should owners do?

CPSC 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.”

Which products are included?

CPSC states: “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.”

When was this recall published?

CPSC published recall 26720 on August 27, 2026.

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