AD1audio offer a paper diaphragms for LOMO Altec JBL TAD Tannoy horn drivers.
1)LOMO drivers 1A-16, 1A-17, 1A-20, 1A-22 with hole (Price 80$ for one).
2)Altec 802 and similar, for 288 and similar and 290, ( Philips EL5502 ). (Price 120$ for one).
3)JBL 075 and similar, 175 and similar, 375 and similar, ( Coral H-104 ). 076, 077, 2402, 2403, 2404, 2405, 2420, 2421, 2425, 2426, 2440, 2441, 2445, 2446, 2447, 2450, 2451. (Price 120$ for one).
4)For the high-frequency section of Tannoy dual concentric speakers with a 2" coil for models before 1979 and after 1979 (the difference is in the center diameter). Fit for HPD series, Monitor Gold, Silver and etc. (Price 120$ for one).
5)TAD drivers TD-4001, TD-4002, TD-2001, SONY SUP-T11 (Price 200$ for one).
After purchase tell me please for what driver do you need diaphragm, what impedance and material of voice coil.
Offer voice coil material three options, Aluminum, Copper or Copper lite.
Aluminum coil - better reproduces high frequencies.
Copper coil - weighs more than an aluminum coil, so it works better at lower frequencies, but high frequencies are cut a little, and the sound by ear is more calm, stable.
Copper lite coil - weighs like aluminum coil, frequency range is similar to an aluminum coil, but the sensitivity is 3-4 dB lower, and sound is a little better by ear (aluminum coil, have unpleasant, aluminum overtone).
Any resistance up to 2500 ohms!
The paper pulp is based on long-fiber Siberian larch cellulose, which is very durable.
Approximately 30% lighter than original metal ones.
The frequency response and impedance characteristics are practically no different from the original ones, with the exception of a slight, smooth decline at higher frequencies.
The sound is without metallic coloring, more natural and stable.