Carvin Corporation CTM100

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Mods for the CTM100

Microphone Parts
MicParts offers a full suite of upgrades for the Apex 460 (and all other rebadged Alctron T11A microphones): C12 style grilles, upgraded K47, K67/K87, and CK12 style capsules, and two different circuits.

The “Fox 460” circuit is a massively upgraded CCDA topology, including a selected 6072 tube, custom-wound transformer, and a third-generation circuit made with the best parts on the market.

The “V-251” circuit is a single triode design with a T14 transformer.

Read more about Apex 460 upgrade options.

Pricing & Availability

MSRP: $260
Discontinued

Reviews & News

CMT100 User Guide

CTM100 Documentation

CTM100 Product Description

Multi-Pattern Tube Condenser Microphone

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.

Because Carvin has not supplied frequency-response graphs for the CMT100, the graphs below are from the HST-11A.

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Specifications

Frequency Response - OmnidirectionalClick Graph to Compare!

Frequency Response - CardioidClick Graph to Compare!

Frequency Response - BidirectionalClick Graph to Compare!

Pickup Patterns	Pads & Filters
Omnidirectional (25 mV/Pa; 20 - 20,000 Hz) Cardioid (25 mV/Pa; 20 - 20,000 Hz) Bidirectional (25 mV/Pa; 20 - 20,000 Hz)

Capsule Dimensions	Impedance	SPL/Noise
Diaphragm diameter: 26mm	300 Ohms (Low)	Max SPL: 125 dB

Weight	Length	Max Diameter	Interface(s)
824g (29.07oz)	240mm (9.45'')	46mm (1.81'')	3-pin XLR male (1)

Power Specifications
Includes tube power supply

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