Learn More
Fall into savings! Fresh deals added daily. Shop Now.
$ 1,299 .00
No interest if paid in full within 18 months Learn more
Ships directly from Useful Arts
Note: This item may not be returnable or could require a restocking fee. Contact one of our Audio Consultants for more details.
This item ships directly to you from the manufacturer. To ensure that the manufacturer currently has stock, please chat, call or email for the latest availability status.

SKU

131372

Useful Arts SFP-30 Single Channel Tube Microphone Preamp

1-channel tube microphone preamp with variable harmonic distortion
MFR# UAA-SFP-30

Product Description

The concept behind the Useful Arts SFP-30 Single Channel Tube Microphone Preamp is simple: Take the exact audio and power circuitry from the SFP-60, put a single channel into a tabletop format, and make it less than half the price of the SFP-60. Done. Everything about the SFP-30 signal path is identical to the SFP-60, except that the SFP-30 lacks the DI input. Other than that, you can now get the finest, most flexible tube preamp available. A better sonic toolkit for recording simply isn't available at this price. Anywhere.

Features:

  • High voltage soft start power supply puts out over 270 volts of clean, regulated power to ensure maximum headroom and the lowest noise possible
  • Each gain stage is single-ended, inherently Class A
  • Audio Magnetics (Input and Output Transformers, Plate Inductor) custom wound by Cinemag
  • Output Transformer with 50% nickel core
  • Frequency response is flat within 2 dB from 20 Hz-30 kHz
  • Each channel of the SFP-30 features 4 switches: High Pass Filter, Input Pad, Phase Reverse, and Phantom Power
  • Front panel switches control sealed, gold-plated relays to ensure years of operation without pops and clicks
  • The input and output levels of the triode stages of the SFP-30 are separately controllable by detented attenuators, and combined with the color control, the SFP-30 provides just over 55 dB of useable gain
  • Voltage selector for 115/230 volt operation in the IEC fuse block on black panel, gold-plated XLR connectors are on the front panel
  • The only active devices in the signal path are the three tube gain stages, consisting of 1 EF806 and 1 ECC82 per channel
  • New-manufacture JJ tubes for long life and easy replacement
  • Each channel features an output level VU meter, which is op-amp buffered to ensure that the signal is not loaded by the meter
  • The audio power supply features a toroidal dual-primary transformer and linear regulation for lowest noise

Product Specifications

Condition New
Tube or Solid State Tube
Chassis Desktop
Input Connectors Analog XLR
Output Connectors Analog XLR
Tube Complement ECC82, EF-806

Product Reviews

No one has written a review yet. Be the first!

* Required Fields

Share Your Opinion

The best gear advice always comes from those who use it the most. That's where you come in! Let the pro audio world hear your voice with a review of the Useful Arts SFP-30 Single Channel Tube Microphone Preamp. Once you submit your review, please check your email and verify your address to have it posted.

How do you rate this product?
I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.
The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
James P.
Thank you so much! Vintage King has been so fair and easy to work with. I can't thank you enough. It feels good to trust such a hefty purchase to folks who are so helpful and knowledgeable. Vintage King is a sound designers dream store.
Noa L.
You guys have excellent customer service and I am excited about the next upgrade I complete on my fifth recording facility. I've been in the studio business for forty plus years. The salesman I worked with at Vintage King was the best of the best. You all rock!
Robby T.
I would recommend Vintage King to any one looking for top-class gear, unbeatable customer service and the best prices on the map!
Jake D.
My experience with Vintage King was excellent. The order was here fast considering it was out of stock. The sales person had SKB send it to me directly and I couldn't have been more pleased.
Michael D.
From the minute I placed my order I was kept well-informed through each step in your process. Even though I was buying a comparatively modest piece of gear, your attention to detail made me feel like I was purchasing a six-figure mixing desk.
Thomas W.
I am a new customer of yours. You guys provided me the absolute best deals in ordering all the equipment to power my brand new recording studio. Your customer service is amazing and i will always deal with you from here on out.
Rob M.
Thanks for your great service and getting this out today. You guys really are the Kings!
Alan B.
Better than expected! Truly impeccable service. Your team was professional, knowledgeable, provided speedy delivery above and beyond standard. Vintage King Audio is definitely my go to for all of my audio and information needs.
James O.