Peluso P-24 Stereo LDC Tube Microphone
Peluso P-24 Stereo Condenser Tube Microphone
***Not currently in stock. Please inquire about pre-order lead times***
The P-24 hosts two complete large diaphragm condenser (LDC) vacuum tube microphone systems within a single microphone body. The two capsules are located directly above each other with the upper capsule capable of rotating 180 degrees. This configuration provides for quick coincident capture in X-Y, Mid-Side, and Blumlein techniques. Both the upper and lower capsules have 9 independently selectable polar patterns controlled remotely at the microphone power supply. The two signal chains run independently through individual high impedance circuit boards and isolated custom transformers, both powered by a single vintage 6072AM glass triode vacuum tube. While the similarities between the P-12 and the P24 (as with the C 12 and C24) run very deep, there are a few key differences. The primary differences are subtle and come from running both circuits from the single 6072AM tube. The tube grid is biased differently with the load of both circuits yielding a better low-end response. Additionally, the anode of the tube is grounded differently providing a smoother and fuller top end.
When we set out to pay tribute to the C 24, we wanted to start at the heart of the microphone and re-engineer the capsule from the beginning. The vintage CK 12 is a very unique capsule. Like most multi pattern LDC microphones the P-24 has a two-sided capsule. Dual edge terminated 6-micron gold mylar membranes tensioned over charged backplates are sandwiched together to create the capsule. As sound pressure waves move the diaphragm, electrical signal passes from between the back plate and diaphragm, creating the signal. The movement of this diaphragm creates sound pressure waves within the internal volumes of the capsule backplate. The design of the venting, chamber sizes and pathways within the backplate has a dramatic effect on the responsiveness of the capsule at different frequencies. The amazing sound quality of the CK 12 capsule comes from the unique and rather complicated design of the backplates and the extra chambers they employ. As a sound wave hits the front of the capsule, the pressure passes into the capsule, through the backplate chambers and in turn passes to the diaphragm on the other side. The capsule must be tuned so that the delay in this wave passing through the capsule matches the diffractive delay of the same sound traveling around the outside of the capsule. The intricate design of this backplate is different between the front side and back side of the capsule. After many decades of restoring these capsules, we wanted to produce an exact historically accurate build. This provides our P-24 with the most accurate CK 12 capsule in production today. Additionally, in our repair department, we now stock diaphragms, and all other replacement parts for a vintage CK 12 capsule. Providing repair clients seeking vintage restoration of damaged CK 12 capsules the options to either re-skin their original capsules, replace the original diaphragms with P-CK-12 diaphragms, or replace the entire capsules with a full replacement P-CK-12 capsules. We are very proud of the results of this painstaking process to recreate this masterpiece of condenser microphone technology.
- Dual Large Diaphragm Condenser Capsules
- 32mm P-CK-12 Edge Terminated Capsule
- Glass 6072AM Vacuum Tube Amplifier Stage
- Dual Custom-Wound T14/1 Output Transformers
- 9-Polar Patterns
Microphone kit comes as a complete system including:
- P-24 Microphone
- Stereo Power Supply
- 12-Pin Screw-on Stereo Cable Assembly
- Shock Mount
- Locking Padded Flight Case