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Studio Projects T3 Tube Multipattern LDC Microphone  From Studio Projects

Perhaps the best Tube microphone value on the market today!

Studio Projects

What We Think

This is unquestionably the finest microphone value on the market today. When we first received the Studio Projects T3's into stock, they were viewed as a sort of joke. However, when we facilitated an actual microphone shootout where the T3 literally beat out and held it's own against a stunning list of competetive products costing in some cases 10 times its price, we were completely blown away. The microphone has a nice smooth, but boosted high end, and is very warm throughout its range. At its price point literally no studio big or small should be without one of these! Impressive anywhere you'd want to use a vintage AKG C12 (that's what they were going after when they made this thing), the microphone is especially well suited for vocals, and more specifically female vox. We're all about this microphone, so feel free to give us a call to chat about it!

Studio Projects C1 Large Diaphragm Condenser Microphone Quick n' Dirty

In this video, Sound Pure pro audio expert Nick Prather describes the many benefits of the Studio Projects C1 Large Diaphragm Condenser Microphone.

Manufacturer's Description from Studio Projects

The Studio Projects T3 vacuum tube mic is based on classic 1950's era designs, combined with present day technological refinements. It is a versatile microphone with abundant applications in the studio from pianos and strings to guitar cabinets and saxophones. Also a serious vocal mic, the T3 will please even the most discerning ears.

The T3 is a variable pattern vacuum tube (valve) condenser microphone. It features our 1.35" (34.5mm.) precision dual membrane capsule coupled through a minimalist tube circuit designed around the 12AY7 (6072) triode and a balanced transformer output. Pattern control is variable between omni directional, wide cardioid, cardioid, supercardioid, hypercardioid and figure of eight via a nine-position switch located on the front of the remote power supply (SPT3). This allows the T3 to be used in all manner of recording situations whether as a room mic, a single point mic for bluegrass or as a spot mic when attenuation from the side and rear is needed. The circuit design of the T3 uses as few components as necessary to prevent added noise and coloration. A hand selected 6072 "dual triode" vacuum tube is used for its low noise, sonic characteristic and reliability. The T3 provides warm transparent sound associated with large capsule tube microphones and it is the absolute stand-alone value in its price class.

As a result of uncompromising dedication and advanced production capabilities, Studio Projects will continue to broaden the range of quality pro audio microphones & electronics for today's recording environment.


  • Pressure-Gradient Transducer, Dual 1.35? (34.5mm) capsule 
  • Selectable patterns (omni, wide cardioid, cardioid, hypercardioid and figure of eight) 
  • Low noise vacuum tube circuitry 
  • Transformer balanced Output


  • A superb vocal microphone with warm natural transparent character 
  • Great for overhead choirs, strings, pianos & percussion 
  • Useful in production, broadcast, and voice over work 
  • Perfect for both the professional and home project studio

Included Accessories

  • Foam windscreen 
  • Elastic suspension 
  • 7pin interface cable 
  • Variable pattern control power supply 
  • Aluminum carrying case
Studio Projects

About Manufacturer

Many microphone manufacturers on today's market bring microphones in from Asia with their brand name on it. It's a very common thing, and they are all pretty good. Some buy all their parts from Asia and assemble them from down under somewhere. Other's go so far as to deceive you by making you think they actually make their own mics right here in the USA or other Country of origin. We won't mention names, but during our travels to many different manufacturers in Asia, we saw plenty of brands come off the assembly lines. Now not all brands do this, but many do. You need to know this. Not that the product is bad, but no one wants to be tricked! Studio Projects partner company, 797 Audio, has a long history (more than 40 years) in the production of professional microphones. The photos to the left and below are from their early 1950's models when their first vacuum tube microphones hit the market The company has a strong contingent of engineers engaged in electro-acoustic products and structural design. With a complete set of B&K electro-acoustic measuring instruments, a first class anechoic chamber, and a high level testing facility, Studio Projects microphones are manufactured at the highest standards available. You wont find real cool new ?buzz? words on this site, or stories of how long it took to create our mics from the latest and greatest materials known to both humans and little green men from outer space. We won't go into how passionate we are for our microphones by showing you our esteemed leader holding his microphone with a look of love in his eyes, as we think that is a bit kinky, and quite frankly, what has that got to do with microphones! After all, we are talking microphones here, and with so many on the market, why should you buy ours, especially since we are a new company? Well, that is a good question so let's address it. We think it's quite simple. Our mics are every bit as good or better at a fraction of the cost you would pay for a world class German microphone. No, we are not a German mic, but we sure do sound like those $3,000.00 models. We use an outstanding capsule based on a 1950's German design, but we have made it sonically better due to advanced manufacturing techniques. We know as much as about mics as any microphone company out there with the exception of what we charge for them. After all, PMI Audio Group knows good sound and by bringing Studio Projects in directly without the added middleman stepping all over the product, we can make them very affordable. If you're not convinced just yet, you will be soon enough. We have plenty of time to wait it out. So keep the Studio Projects name in the back of your mind as you have nothing to lose, and everything to gain. You see, we may be priced like the other low cost brands, but the quality and sound you get will compare with the expensive German models.


Type: Dual diaphragm large capsule vacuum tube condenser.

Polar pattern: Omni directional, wide cardioid, cardioid, hypercardioid, figure 8

Frequency response: 20~20000Hz.

Sensitivity: 14mV/Pa=-37dB(0dB=1V/Pa).

Output impedance:<250 Ohm.

Load impedance: >1000 Ohm.

Maximum SPL: 125dB SPL for 1% THD @1000Hz (0 dB SPL=0.00002Pa)

Noise: Line)---28dB (A weighted)---18dB-A.

S/N: 76 dB.

Power requirement: Supplied Power Supply (SPT3) 110/220

Current: 200V DC high voltage, <1.5mA - Filament 6.3V DC, <370mA.

Connector: Gold-plated 7-pin XLR

Size: dia: 2.1" length: 8.9"

Weight: 26.9oz