Advanced Audio CM800T Tube Microphone

The CM800t uses a double-sided, dual back-plate 32mm K67 type capsule with a HF rise similar to the original capsule utilized in the c800g.

The circuit is designed around a military spec'd GE/JAN 5654W tube which is configured the same way as the C800G circuit that used a 6AU6a tube.

PSU works on 100-240V, 50-60Hz

32mm double-diaphragm K67-type capsule
Selectable omni, cardioid and figure-eight pickup patterns
Class “A” single stage tube circuit coupled to a high quality dual bobbin transformer featuring bi-metal laminations that can handle the presence rise of K67 style capsule.
100Hz switchable roll-off (rumble filter)
Switched -10dB pad
Impedance: <200 ohms (load impedance <1.2K)
Noise: <14db (A-weighted)
Distortion: <1% @ 128dB without pad and 138dB with pad
Output: >10dBu with <0.5% distortion 20-20kHz
Robust shock-mount
Aluminum road case, regulated power supply and 7 pin gold plated Neutrix cable

US and EU parcels ship via UPS, ETA 1-7 working days from pickup day zero. That also applies to most locations worldwide.

All shipments are fully insured.

Bigger shipments requiring pallets or custom made crates ship to US, CA, JP, CN, AU and other outside of EU locations via DHL Air Freight, ETA is normally approx. 7-14 working days from pickup day zero.

Big shipments inside EU ship via different freight companies, recently mostly via ACE Logistics. Freight forwarders can use different courier companies for deliveries to final destinations.

Palletising and crating time can vary depending on the size of the shipment and packaging queue. We pack all our shipments with great care.

You are most welcome to pick your order up yourself from our Retrosonic Pro Audio showroom, studio and warehouse in Tallinn, Estonia.

We ship worldwide – contact us for a personal shipping quote or any other questions.

VAT (Value Added Tax) can be deducted if you have a company with a valid EU VAT number or if you're based outside of the EU. Non-EU buyers pay all and any import tax and duty as regulated by their local customs.