FiiO RETRO BOX Audio Cassette-Style Bluetooth Stereo Supports LDAC USB Decoding, Cassette Window for M33/M21 Bluetooth Speakers
Computer Peripherals
“The FiiO RETRO BOX is a niche desktop speaker featuring dual 40mm full-range drivers and rear-facing passive radiators. While it offers a unique aesthetic and tactile metal controls, the conservative gain tuning can result in quiet output, making it best suited for near-field desktop listening rather than room-filling audio.”
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Tactile, high-quality metal buttons and volume knob provide satisfying physical feedback.
headfonia.comThe volume knob in particular made of metal, not plastic offered a satisfying haptic click
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Dedicated docking bay integrates FiiO DAPs to transform them into a visual cassette player.
the-gadgeteer.comDrop one into the front bay, pair it over Bluetooth, and the players own screen
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Conservative gain settings can cause the speaker to sound quiet even at maximum volume.
hifihub.com.brthe speaker may occasionally sound quiet even at maximum volume
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Requires 3D-printed adapters to fit smaller compatible DAP models like the JM21 and M21.
hifihub.com.brit is necessary to install a 3D-printed insert included in the product packaging
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Limited frequency response (65Hz–20kHz) lacks sub-bass performance due to small driver size.
the-gadgeteer.comFrequency response runs 65Hz to 20kHz, so sub bass was never part of the plan