Altec 34726 Symbiotic Replacement Diaphragm (production dates not documented)

Little is documented about the Altec 34726. The record shows it isn't a complete driver or loudspeaker. It's a replacement diaphragm and voice-coil assembly, listed in resale listings as an Altec Lansing Diaphragm Voice Coil Replacement Assembly. Those same listings describe it as a "Symbiotic" diaphragm, rated at 8 ohms, and note compatibility with a family of Altec drivers: 802, 808, 902, 908, 604, and similar. The examples that surface today are almost always described as new old stock (NOS) - original, unused replacement parts that survived in inventory or private stashes.

No official Altec engineering data, production dates, original retail pricing, or factory specifications have been located. Frequency response, power handling, sensitivity, and physical dimensions remain undocumented. The resale market tells a little: a single NOS 34726 diaphragm has been listed at €69, and a NOS pair of original Symbiotic diaphragms was listed at $305 with free shipping.

• Type: Replacement diaphragm / voice coil assembly ("Symbiotic")
• Impedance: 8 ohms
• Compatibility: Altec drivers 802, 808, 902, 908, 604, etc.
• Typical status today: New old stock (NOS)

eBay Listings

Da-Lite projection screen 34726 Model C w/CSR 50"x80"x 94' D

$500

Da-Lite 60 x 80 Matte White Mount-Ceiling Projection Screen

$500

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