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Heritage Audio LANG PEQ-2 Program Equalizer

1-channel Solid State Program EQ with 26 Frequency Options for Simultaneous Boost and Cut
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Item ID: PEQ-2
Heritage Audio LANG PEQ-2 Program Equalizer
Price:$899 and 00 cents
Special Financing - Ends Jun 30, 2026. $19/month with 48 month financing*

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Heritage Audio LANG PEQ-2 Program Equalizer
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Price:$899 and 00 cents
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This article was Written By

Our Product Research Team

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Return of the Classic “Secret Weapon” EQ

The audio world is abuzz with the news of Heritage Audio’s acquisition of LANG Electronics Inc. Sweetwater is very pleased to announce that you can now get your hands on their new-and-improved Heritage Audio LANG PEQ-2. This program EQ unit offers everything recording professionals loved about the original LANG PEQ-2 and more. Its simple layout, independent controls that boost and cut at different frequencies, and magical 20kHz High Peak Boost option are all here, as well as some new Heritage Audio touches like custom I/O transformers for a consistently clean signal. By playing with its 26 frequency options for simultaneous boosts and droops (cuts), you can sculpt your tones in exciting combinations that aren’t possible with other EQs. The Heritage Audio LANG PEQ-2 makes the low end, in particular, remarkably manageable, and a pair of PEQ-2s on your 2-bus can open up the top end of your mix like nothing else. Plus, its controls are stepped for easy recall and matching. Heritage Audio has made the sound of this legendary “secret weapon” EQ unit more accessible than ever, and Sweetwater studio engineers are thrilled!

The secret weapon

During the 1950s and 1960s, LANG earned renown for producing quality pro audio equipment and parts at affordable prices (much like Heritage Audio is today). The company’s most popular offering was arguably the PEQ-2 Program Equalizer, which still has many devotees even now. Unfortunately, LANG Electronics produced very few PEQ-2s, and the ones that still function are doggedly safeguarded by their owners. These days, you’re unlikely to find an original PEQ-2; even if you do, expect the seller to ask for an obscene amount of money. But, with the Heritage Audio LANG PEQ-2 reissue, that no longer matters.

Heritage additions

Heritage Audio was not content with simply bringing this gem of an EQ and standing pat. The company upped the ante by equipping their reissued LANG PEQ-2 with custom Input and Output transformers, ensuring you’ll always have a clean signal. The Heritage Audio LANG PEQ-2 features a Low Shelf boost and cut control, a High Shelf cut, and a High Peak Boost with a variable Q (bandwidth) that ranges from Sharp to Broad settings. Additionally, the Boost range varies depending on your selected Q setting, which always gives the Heritage Audio LANG PEQ-2 an incredibly smooth and natural response. Last but certainly not least, the attractive price tag of the Heritage Audio LANG PEQ-2 means that this legendary EQ unit is now within everyone’s grasp.

Heritage Audio: legendary performance and epic value

Founded in 2011 by engineer/producer Peter Rodriguez, Heritage Audio immediately set about designing and manufacturing equipment inspired by legendary vintage British console modules. The company leverages the same handwired, transformer-coupled Class A circuitry, with functionality aimed at today’s studio workflows. Designed to stringent tolerances and meticulously crafted in the company’s factory in Spain, Heritage Audio gear delivers clean, problem-free audio with generous headroom and the vintage-flavored sonics we all crave. Sweetwater is proud to offer you this distinguished line of high-performance pro audio equipment.

LANG PEQ-2 Program Equalizer Features:

  • Authentic LANG PEQ-2 reissue
  • Customer Heritage Audio transformers for balanced input and output signal
  • Same exact inductors and tone capacitors as in the original PEQ-2
  • Stepped controls for easy recall, matching, and selection of 26 different frequency options
  • High Peak Boost with variable bandwidth and magical 20kHz option
  • High Shelf Cut with extended frequency choices
  • Low Shelf Boost and Cut each with different frequency selections

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Tech Specs

  • Type: Solid State
  • Number of Channels: 1
  • Number of Bands: 2
  • Q Type: Variable
  • Freq Range High: 2.5kHz-20kHz
  • Freq Range Low: 20Hz-240Hz
  • Inputs: 1 x XLR Female
  • Outputs: 1 x XLR Male
  • Rack Spaces: 2U
  • Power Source: Standard IEC AC cable
  • Manufacturer Part Number: PEQ-2

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Reviews

Oh my!
I got the Lang to replace something I had to sell that cost three times the Lang. That said, I let her sit for awhile thinking it could never match up. Boy, I couldn't have been any more mistaken. The Lang is an incredible EQ. The curves are so musical and you don't really wanna look at it when you're twisting the dials, all which are extremely responsive and have a satisfying feel. I wasted two months of it sitting in my rack. I would've had a big smile on my face and would've sold the other unit when and if I had the chance to pair the two. That good. It's very dark when you wanted to be in very bright when you wanted to be an all of the in-between without ever sounding bad. This thing is worth more. I would expect to put out a lot more in a blind test. Haha! that shouldn't give heritage audio any reason to charge more. This company is making amazing products at very little coin. I also own the 73 with the EQ, which is lovely. Do yourself a favor, and get the LANG. you won't be sorry.
Music background: 50+ yrs and still running!