Shop Keyboard Deals, Financing, and More

Sorry, all demos of this item have been sold.

Since demo items are such a great deal, they often sell within hours of showing up on our web site. Order a new one below, or browse every currently available demo item here.

API The Channel Strip

1-channel Mic Preamp, Compressor, EQ, and Line Driver with Rear-panel Patching and LED VU Displays
$3,295.00

Or pay $549.16 for 6 months with Easy Pay

See all payment options
In Stock!

Only 4 left in stock! Order Soon!
Add to Cart
Notify me about deals

Ask An Expert

Our expertly trained Sales Engineers are ready to help!

What is a Sales Engineer?
Sweetwater Gear Exchange

Have one to sell?
Check out Sweetwater's Gear Exchange!
Learn More

Most Popular Accessories & Related Items

API The Channel Strip
In Stock!
$3,295.00
Add to Cart
Add to list
Back to navigation

This article was Written By

Our Product Research Team

Get to know them!

A Complete API Analog Front End

How'd you like to put the best features of a large-format API desk into your studio rack? With API's The Channel Strip, you can do precisely that. This enviable rackmount unit is jam-packed with sections based on classic API modules, including the 512c Mic Preamplifier, the 527 Compressor, the 550A Equalizer, and the 325 Line Driver. Moreover, you get complete patching facilities on the unit's rear panel, plus two 10-segment LED VU displays, multiple balanced insert points, a sidechain input, and an output mute switch. The Channel Strip's processing sections can be switched in and bypassed individually, and you get a switch to internally route the compressor after the EQ. Moreover, this indispensable piece of studio hardware includes API transformers and 2510 and 2520 op-amps throughout for real-deal API sound. Any engineer seeking to harness the high-performance sound of an API console will find everything they've been dreaming of in The Channel Strip.

API 512c Mic Preamplifier

The Channel Strip's 512c Preamplifier section is brimming with classic API sonic character, supplying you with a line preamp at unity gain, an instrument preamp with 50dB of gain, and a mic preamp with 68dB of gain. You get a -6dB line pad, a -20dB microphone pad, switchable +48V phantom power, and a polarity inverter. A +27dBu preamp output peak indicator and LED VU meter add even more utility to this world-class preamp. The engineers here at Sweetwater are blown away by the authenticity of The Channel Strip's 512c Preamplifier section — its 2510 and 2520 op-amps are the real API deal.

API 527 Compressor

API's The Channel Strip's multimode 527 Compressor section includes fully adjustable Threshold, Attack, Release, and Ratio controls, with selectable feed-forward/feedback and hard-/soft-knee compression. API's patented Thrust feature is on hand, providing ear-grabbing frequency-dependent sidechain control. You also get a 10-segment gain-reduction meter, a sidechain input, a Link switch for multiple-unit, interdependent compression linking, and a Comp Bypass switch with hard-relay switching. Finally, you get a switch to internally route the compressor post-EQ. And, like the rest of The Channel Strip's sections, the 527 Compressor boasts 2510 and 2520 discrete op-amps.

API 550A Equalizer

The API 550A Equalizer is a true classic — an EQ embraced since the late '60s and a standard by which countless EQs continue to be judged. The Channel Strip includes this fabled EQ, supplying you with three bands of classic API equalization. Each band includes seven API-selected frequency centers, with a maximum of 12dB of boost/cut per band. You get reciprocal and repeatable filtering, the section's Low and High EQ bands offer shelf/peak switching, and you get a bandpass filter. And, of course, the API 550A Equalizer gives you access to API's ultra-musical Proportional Q, which narrows the filters' Q at extreme settings. The Channel Strip's EQ section vaunts a traditional, fully discrete API circuit design with 2520 discrete op-amps.

API 325 Line Driver

At the end of API's The Channel Strip, you'll find a 325 Line Driver, culled from classic API console designs. This section includes a switchable insert return, a remote-controllable soft mute function, and full attenuation to +10dB of gain. You get a high-headroom, +30dB clip level, with an output level pot and a 10-segment LED VU meter that can be switched to display the output level of The Channel Strip's 512c Mic Preamplifier. A 2520 discrete op-amp and a transformer-coupled output complete the 325 Line Driver section.

API The Channel Strip Features:

  • Complete front-end solution with API console sound
  • API 512c Mic Preamplifier provides line, instrument, and mic preamplification with real-deal API character
  • API 527 Compressor includes fully adjustable controls, feed-forward/feedback, hard-/soft-knee, and Thrust
  • API 550A Equalizer supplies 3 bands of classic API equalization with loads of tweakability
  • API 325 Line Driver boasts an output level pot and output mute
  • Complete patching facilities on the unit's rear panel
  • 2 x 10-segment LED VU displays
  • Multiple balanced insert points and sidechain input
  • Sections can be switched in and bypassed individually
  • Compressor can be internally routed pre- or post-EQ
  • API transformers and 2510 and 2520 op-amps yield classic API sound

Additional Media

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
  • Fix it the first time with our award-winning, factory-certified Service Department
Learn More about Total Confidence Coverage

Free 2-year Warranty

Sweetwater's 2-year Total Confidence Coverage™ Warranty gives you extra peace of mind at no extra cost.

Learn More about Total Confidence Coverage
Tools Icon

Save money with free parts & labor!

Fast Icon

Get back to making music with the industry's fastest turnaround time.

Award Icon

Fix it the first time with our award-winning, factory-certified Service Department.

Back to navigation

Tech Specs

  • Preamp Type: Solid State
  • Number of Channels: 1
  • Phantom Power: Yes
  • EQ: Yes
  • Compressor: Yes
  • Analog Inputs: 1 x XLR (Mic), 1 x 1/4" (Hi-Z), 1 x 1/4" (Line)
  • Analog Outputs: 1 x XLR
  • Other I/O: 8 x 1/4" (Pre Out, FX 1-2 In/Out, Insert Return, Comp SC In, DC Link), 1 x 9-Pin (Ext Control)
  • Rack Spaces: 1U
  • Height: 1.75"
  • Depth: 11.5"
  • Width: 19"
  • Weight: 10.75 lbs.
  • Manufacturer Part Number: TheChannelStrip

What Makes Our Sales Engineers Great?

Sweetwater Sales Engineers are a world-class team of experts dedicated to you. Hand selected from across the globe, each brings a wealth of experience and expertise in the world of music gear to provide you with unparalleled service completely free of charge. Friendly relationships, real trust, and the right gear are only a call or a click away!

Back to navigation

Customer Reviews

Write your review
Rated 5/5

Versatile, endlessly useable, quality

I've had my API channel for a few months now. It's the second piece of outboard I've owned, after the BLA B173 MkII. Wow is the API an upgrade! Paired with my Neumann TLM 102, I am capturing the most professional sounding vocals of my career.
I go easy on the preamp and then dime the threshold on the compressor, and of course I utilize the glorious EQ (a little goes a long way I find.) It's still a natural sound, but with that perfect level of processing that you buy something like this for.
It's so good for vocals, but it's even better for guitars. I process rhythms through it and what comes out is more than twice as good as what came in, easily. It's so easy to find a good sound with the options they give you.
It's also fantastic on kicks, snares, etc. I want a second one to process stereo tracks! One day. Long story short if you are looking at investing in this for a home studio, it is overkill, in the best way.
Music background: Self-producing musician and vocalist for over a decade
Rated 5/5

Last Stop.

It surprises me how long this channel strip has been out and how few the reviews and info on it there are. It's basically an API Greatest Hits record in a rack unit. I was looking for a channel strip for my home studio. I only really needed one channel to cover everything, and the Shelford was getting all the love. -So I got the Shelford channel. I've had the Warm WA12 mkii, WA273, BAE 1073mpf with Distressor, and the Apollo X6 (Black lion modded with XB Clock).

I spent 3 weeks with the Shelford, and let me tell you, the headroom on that thing is incredible. It sounds great, the EQ is amazing, the Compressor is nice, etc. I guess it's personal preference, but after 3 weeks I was just not inspired to get to work on it. That's not to say I couldn't do great work with it, but for $4000 I need to be excited when I do lol. It felt vanilla as all get out, which is really just Neve's laid-back smooth character - so not a bad thing, but I wanted to try the API also.

I lost some money, but a good friend bought the Shelford from me and I got the API. He let me hang onto it to A/B between them for a bit before I sent it off. As it turns out, everything I recorded with the Shelford, I'd mix to sound like what the API already does. You are "there" waaaay faster. It's not harsh, headroom is just as great, the 527 compressor can be as punchy or transparent as you want, the 550A EQ is perfect no matter what you do. Nothing gets shrill or peaky. You can't break it. (You only need 3 bands for tracking in my opinion anyway.)

It's a hotter preamp than the Shelford. It sounds more forward, present, and intentional than any pre I've used. If you have an SM7, this is your channel strip...period.

My absolute favorite piece of the puzzle here though is the 325 line driver at the end. You drive the front end, then you push/pull the back end if you want. (It's all stepped as well). Between the pre and the line driver, you can dial up as much smoothness or grit as you want upfront, then push or attenuate at the end. The shaping options on this piece are amazing. It has insert points at every part of the chain. If you run an apollo, output a channel to the eq, another to the compressor, pre, etc. It basically breaks up like separate modules in a 500 rack to choose from in a mix. There is a "cut" button that mutes the output by default when you turn it on. No pops. Not a huge deal, but in practice, it's nice to just hit an actual button to mute it if you're tracking in the same room you're playing back from when you turn up the monitors. In short, this thing just sounds incredible with zero compromise, and it gets out of the way.

I sent the Shelford off to its new home, happily. I'll be getting another one of these for stereo.
Music background: Professional Recording engineer, Composer
Rated 5/5

Versatile Channel Strip

Sweet sounding, versatile channel strip with that API sound. I picked this up mostly as a match for my own vocals. Have used several high end channel strips (and tons of emulations) but always kept coming back to this as the best fit for me in getting that "radio ready" sound the moment it goes to "tape". Input and output gain help you decide how hard you want to hit the pre going in making the coloration very versatile—wide, open and clean or dial it up for that nice mid range focus that API is known for. The knob controls just feel "expensive" and the comp and EQ sound great and are musical to dial in. Great front end for vocals, drums or anything else you want to throw at it.
Music background: Musician, Producer, Mixing Engineer
Rated 5/5

All the power of a great channel strip at your fingertips

If you love the sound of API, or have worked on their consoles, you will love this strip. Redlining the pre for distortion sounds amazing on bass and stylistically on vocals. The compressor can be so gentle, smoothing over peaks and the eq sounds very musical. Has taken my frustration at getting my vocal tracks to "sit" in a mix with many ITB plugins to recording directly with a bit of comp/eq and hardly touching it. Price for me was worth it. I have a UA 8p with the API Unison pre and there is no contestant. The amount of low end harmonic saturation you get with the API makes it sound "real". This pre also makes standard mics like the SM7 sound fantastic without having to push them too hard. Love the sound!
Rated 5/5

API The Channel Strip

The best channel strip I have ever used. Why I didn't try API before?
Music background: Musician, producer.
Close Close $2,000 Pick Your PRS Giveaway -- input your email address below to enter or click here to learn more.

See giveaway details & rules or check out our past winners!

Success!

Your email, has been entered to win this giveaway. Good Luck!