RCA MI-9357A Resored Tube Mic Preamp Rackmount Psu BA-2A

( Brand: Rca ), ( Manufacturer Part Number: MI-9357A ), ( Type: 6j7 ), ( Country/region Of Manufacture: United States )

Review RCA Fully Resored Vintage Tube Mic Preamp Rackmount And Psu

The RCA MI-9357A Restored Tube Mic Preamp Rackmount BA-2A PSU is a vintage audio device that offers a unique and authentic sound experience. This preamplifier, modeled after the iconic RCA BA-6A, has been meticulously restored to preserve its original charm and quality.

The heart of this preamp is the 12AT7 vacuum tube, which lends a warm, rich, and harmonically complex sound to your microphone signals. The unit features a transformer-balanced output, ensuring minimal noise and maximum signal integrity. The BA-2A PSU, included in the package, provides stable power to the preamp for optimal performance.

The RCA MI-9357A boasts a simple yet functional design, with controls for gain, phase inversion, and a high-pass filter. The front panel features clear and easy-to-read VU meters for accurate level monitoring. The rackmountable design allows for easy integration into your studio setup, saving valuable space.

Whether you're recording vocals, acoustic instruments, or looking to add some analog warmth to your digital tracks, the RCA MI-9357A Restored Tube Mic Preamp Rackmount BA-2A PSU is a versatile and essential tool. Its vintage appeal, combined with its high-quality sound, makes it a must-have for any serious audio enthusiast or professional studio.

The RCA MI-9357A Restored Tube Mic Preamp Rackmount BA-2A PSU is a vintage audio equipment piece that offers a unique and warm sound quality, highly sought after in the music industry. Here are some pros and cons to consider:

1. Authentic Vintage Sound: The tube-based design provides a warm, rich, and musical tone, which is difficult to achieve with solid-state equipment.

2. Versatility: The MI-9357A can handle a wide range of microphone types and impedances, making it suitable for various recording situations.

3. Build Quality: As a restored piece, it has been carefully refurbished, ensuring it meets the original standards of quality and durability.

4. BA-2A PSU: The included BA-2A power supply is a bonus, offering a stable power source for the preamp.

1. Limited Quantity: Restored equipment like this is in limited supply, and prices may be higher than new equipment.

2. Maintenance: Tube equipment requires regular maintenance and tube replacement, which can be costly over time.

3. No Modern Features: The MI-9357A lacks modern features such as phantom power, Pad, and EQ, which may be limiting for some users.

4. Power Consumption: Tube equipment generally consumes more power compared to solid-state equipment.

The RCA MI-9357A Restored Tube Mic Preamp Rackmount BA-2A PSU is a great choice for audiophiles and professionals seeking a warm, vintage sound in their recordings. However, it might not be the best option for those who prioritize modern features, ease of maintenance, or power efficiency. Consider your needs and budget before making a decision. If you're willing to invest in a unique piece of audio history and appreciate the vintage sound, the RCA MI-9357A could be an excellent addition to your recording equipment.

Details:

It has also been fully restored and set up for this preamp. It is a similar circuit to the famed BA-2A with two 6J7 tubes and gain control between stages. The difference is that this unit rackmount and has an external power supply. It also has a 7kHz low pass filter switchable.

Total gain is 60dB from a 150 ohm source to 600 load. The face plate is custom and includes a vintage RCA logo knob. This is a fully restored and customized RCA MI-9367A tube microphone preamp.

part #: mi9357a price

• $2000.00

specifications tubesocketvintagego:

• brand: Rca
• mpn: Mi-9357a
• type: 6j7
• country/region of manufacture: United States

payments tubesocketvintagego:

• wallet: Google-pay
• other
• credit card: Visa

seller tubesocketvintagego:

• rating: 100.0%
• city: Brooklyn, New York
• # reviews: 1833

general tubesocketvintagego:

• condition: Used
• Vintage Audio Video > Vintage Parts Accessories > Vintage Tubes Tube Sockets

shipping tubesocketvintagego:

• class: Standard
• carrier: USPS
• type: Calculated
• cost: $88.35
• transit: 5-10 Days
• service: USPS Ground Advantage

offer tubesocketvintagego:

• availability: In Stock
• sold: 0
• started: October 1, 2025
• options: Ship-to-home
• quantity: 1
• best offers: True

returns tubesocketvintagego:

• policy: No Returns

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