Technics EAH-88 (c. 1974)

Little is documented about the Technics EAH-88. The record is a pair of Japanese archive listings that date it to around 1974 with an original price of ¥9,800. No period reviews, production dates or collector history have turned up.

The EAH-88 uses an unusual driver arrangement. Instead of a single full-range unit, each earpiece has an 8 cm woofer and a 5 cm tweeter, and the user can adjust the low-band and high-band levels independently. That was an unusual feature in a headphone of the mid-1970s. The rest of the known spec sheet is respectable for the era: 102 dB/mW sensitivity, a rated range of 16 Hz to 22 kHz, 1,000 mW allowable input, and 4 - 16 Ω matching impedance. The cord is a 3 m braided type, and the headphones weigh 780 g without it.

Known specifications:

• Type: Stereo headphone, dual-driver (8 cm woofer + 5 cm tweeter per side)
• Independent woof/tweeter level adjustment
• Sensitivity: 102 dB/mW
• Frequency range: 16 Hz – 22 kHz
• Allowable input: 1,000 mW
• Matching impedance: 4 – 16 Ω
• Cord: 3 m, braided
• Weight: 780 g (without cord)
• Original price: ¥9,800 (c. 1974)

No dimensions, construction materials or cable connector details are recorded. The two archive sources agree on the essentials, but they ultimately trace back to the same lineage of Japanese catalog data.

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