Apex Electronics 205
Bidirectional Ribbon Microphone
The Apex 205 is the best-known retail version of Alctron’s HRM-8B, a large-format ribbon design that has, according to Oktavamod’s Michael Joly, “obvious internal resemblance to the AEA R84.” The same ribbon motor design can be found in the Nady RSM-2 and the Shinybox 46 (the latter being remarkable in that it has all the mods you’d want to do built in from the vendor).
Common mods for these mics include:
- Re-tensioning sagging ribbons
- Removing blast filters from behind grille
- Swapping the stock transformer for a Cinemag (e.g. CM-9888) or Lundahl (e.g. LL2911) or Edcor (e.g. RMX1)
For sound samples of a shootout between the AEA R92, Coles 4038, and a pair of OktavaMod-modded Apex 205s, see drBill’s ribbon mic shootout on solo piano.
The Apex Electronics 205 is also known as: Apex205.
|Frequency Response - BidirectionalClick Graph to Compare!|
||Pads & Filters
(2 mV/Pa; 30 - 18,000 Hz)
| 50x5mm, 2-micron aluminum ribbon
||600 Ohms (Low)
||Max SPL: 165 dB
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