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SKU

259

Purple Audio MC77 FET Compressor

New model of the re-engineered 1176 FET limiter
MFR# MC77

Product Description

Inspired by the renowned Universal Audio 1176 FET limiter, the Purple Audio MC77 painstakingly recreates the audio circuitry of the Revision E model using high-quality modern components. Based on user feedback from the MC76, the MC77 introduces a number of new improvements such as True Bypass, improved stereo linking and a dedicated side chain insert.

HIGH-QUALITY COMPONENTS

In 2002, Clarostat quit making the custom J series T-pad input attenuator used in the original UA 1176 A-F revisions, as well as the Purple MC76. After finding a replacement design that identically matched the response of the original, the MC77 was born. With the same discrete transistor audio path electronics, single element Class-A output amplifier, and transformer-balanced design as the award-winning MC76, the new MC77 combines classic analog tone with versatile new features.

CLASSIC CONTROLS

The Purple Audio MC77 features the same classic push-button controls for ratios of 4:1, 8:1, 12:1 and 20:1—as well as the legendary “all buttons in mode”. The MC77 is equipped with two rugged knobs for smooth, precise adjustments of input and output levels. Two smaller knobs in the center control attack and release times.

The 1176 was known for its lightning-fast attack times and the MC77 captures the same legendary punch with variable attack times from 20 to 800 microseconds. The attack control also features an “off” setting, allowing you to color signals with the classic sound of FET circuitry without having to alter your dynamics. Release times are variable from 50 milliseconds to 1.1 second, making the MC77 versatile enough to use on drums, vocals, guitars and more.

MODERN FEATURES

The Purple Audio MC77 is equipped with a number of modern new features and workflow enhancements. A new Bypass button on the front engages a True Bypass so you can accurately A/B mixes. Stereo linking is easier than ever with a dedicated Link button on the front panel. A new Sidechain Insert button enables side-chain compression for massive pumping effects. An upgraded VU meter can be set to monitor gain reduction, input or output levels at +4 dBu.

Features:

  • True Bypass via sealed relay with front panel switch
  • Improved stereo linking with front panel switch
  • Side-chain insert loop or key input with front panel switch
  • Buffered VU meter can monitor input or output level at +4dBu
  • LED meter lights that don't burn out as incandescents do
  • Heavy gauge black stainless steel enclosure
  • 115v/230v operation switchable from rear panel (serial# 600)
  • Discrete Transistor Audio Path Electronics
  • Single Element Class A Output Amplifier
  • Transformer Balanced XLR Inputs and Outputs
  • Zener Shunt Regulated Audio Power Supply
  • Compression Ratios - 4:1, 8:1, 12:1 and 20:1
  • Fast Attack Time - 20 microseconds to 800 microseconds
  • Release Time - 50 milliseconds to 1.1 second
  • Gain of 45dB (full gain with no limiting)
  • Rugged Design - PCB stiffener, chassis mount transformers
  • Purple Anodized Aluminum Front Panel
  • 3 year warranty

Product Specifications

Condition New
Tube or Solid State Solid State
Channels Single-Channel
Chassis 19-inch Rack-mount
Rack Spaces 2U
Digital I/O No
Compression Type FET

Product Reviews

4.6 out of 5 stars.
Review Count (8)

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The MC-77 was at the top of my budget, so it was a big decision for me, but the right decision! I’m kind of blown away with how much it brought to my vocals. I’m not a professional by any means, but I’ve steadily worked my way towards the purple, with entry and mid level compressors, so I have at least a point of reference. I’ve heard people say the purple can be bright, which I’m not sure is the right word, but it does add a certain color and rounds out my darker AKG 214 mic perfectly. I am curious though, what the purple would add to say, a Neumann, but I’ll know soon enough. I’m currently pairing the purple with with a Bae 1073 pre and another compressor, the IGS one (rack version), which is a LA2A clone. The purple is now a permanent piece in my studio and I don’t believe there’s a better unit for the money, the proof is in the sound!

By Cliff M on March 14, 2023

Adds nice coloration, warmth, and body, but noisy as heck. Might sell.

By david m on December 19, 2022

Upgraded to this unit from a warmer clone of an 1176 which was OK but not great. This unit is great. It adds a nice weight, depth and grit to everything that passes through it. I've found that a little goes a long way with this unit, but if you take the time to really dial everything in, it's just awesome.

By Shawn C on January 17, 2022

Worth the money. Goes from natural and more transparent, to full on smashed. Sounds good even when you have it set wrong. Works great as preamp, tons of headroom. Adds a little extra excitement and clarity on the top end. BEST. COMPRESSOR. EVER. I will be getting a 2nd one eventually.

By Nathan L on January 9, 2022

Good warm sound!

By Shingo Y on December 1, 2021

Did some research and grabbed one of these over the UA reissue. Can't even explain the depth this compressor has. Vocals sound so focused and three-dimensional. Drums have punch and clarity. Theres something amazing it gives to anything you run through it. Props to Purple for the bypass button. Believe the hype.

By Tony on November 28, 2020

Love it! - It's a real workhorse.

By Alex M on August 12, 2019

Solid - great sounding full feature compressor/limiter

By John P on March 1, 2019

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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.
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