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side-address large-diaphragm tube alctron multipattern condenser
Specifications and Reviews
Mods for the CTM100
- Advanced Audio Microphones
Dave’s suite of improvements to the HST-11A (and its rebadged equivalents) includes replacing electrolytic capacitors with Mylar, bypassing unnecessary capacitors, changing the capsule to a Peluso (model varies by application, e.g. a CEK-89 provides U67-like response, CEK-367 provides U47-like response, CEK-12 for C12-like response), swapping the 12AX7 tube for at 12AT7 or 12AY7/6072a (providing a 6-8dB gain in headroom), and changing the output transformer (e.g. to a Cinemag CM-2480), resulting in a microphone “which will go head to head with a C12 or Tele U47.” - Marik
Marik’s suite of mods for the HST-11A (and rebadged equivalents, including the TCM1150 and Apex 460) includes upgrading tubes and electronics to higher-quality parts, upgrading transformers to Cinemag/Lundahl or Marik’s own custom-wound tube mic transformers, and redesigning the circuit for optimum tube/transformer match.
Related Microphones
Carvin CTM100
MSRP: $260 Multi-Pattern Condenser Tube Microphone
Description
The Carvin CTM100 is an Alctron HST-11a, manufactured in China and available in the US and Europe under numerous brand names.
It is a 9-pattern tube mic with included power supply and shockmount. As do all the rebadged HST-11a mics, the CTM100 responds well to modification; search the web for “Apex 460 mod” to find relevant message-board discussions, or see our Apex 460 page for a starter list of common mods.
Permalink: Carvin CTM100
| Pickup Patterns | Pads & Filters |
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| Diaphragm size | Impedance | Max SPL |
|---|---|---|
| 26mm (1.02'') | 300 Ohms (Low (50-1000 Ohms)) | 125 dB |
| Weight | Length | Max Diameter | Interface(s) |
|---|---|---|---|
| 824g (29.07oz) | 240mm (9.45'') | 46mm (1.81'') |
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| Power Specifications |
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