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The API Audio 2500+ is an analog stereo dynamics processor based on the famous API 2500 bus compressor. This powerful 1U rack processor features classic API 2520 op amps, a unique THRUST Filter, two compression modes, and a versatile Mix/Blend circuit. Combining classic API engineering with an enhanced feature set, this updated classic brings iconic API sound to any mix. If you're in search of a compressor with maximum versatility, look no further than the API 2500+.
Most importantly, the API 2500+ delivers the same characteristic tone and punchy dynamics made famous by the original API 2500. Combining tried-and-true circuit design with modern updates, it delivers the rich analog tone you expect, plus added flexibility. Enjoy classic API boldness on your mix bus as well as drums, guitars, vocals, and more.
Celebrated for their linear response and low distortion, API's classic 2520 op amps provide a clean signal path that preserves every detail of your sound. These op amps support consistent, noise-free performance, allowing you to dial in subtle leveling or aggressive limiting. These premium components give you a clean slate to process your sound without unwanted noise or distortion.
The THRUST filter precisely sculpts low frequencies using frequency-dependent sidechaining. Three available settings allow you to tailor the unit's low-end response for processing bass-heavy mixes, kick drums, bass guitars and more. This patented circuit minimizes muddiness and enhances punch, delivering a tight and impactful bottom end on any source.
The API 2500+ offers two selectable compression modes for ultimate flexibility. In "Old" (feed-back) mode, the detector signal is derived from the output, providing smooth, vintage-style compression. In "New" (feed-forward) mode, the signal is taken directly from the input for faster transient response. This dual-mode design provides maximum flexibility for different genres and instruments. Use this feature to achieve either classic warmth or modern precision with ease.
The innovative Mix/Blend Circuit provides detailed control over the compressed and uncompressed signal blend. When engaged, you can choose from two modes. Cross mode (X) automatically balances the dry and processed signals as you adjust the Mix knob. In Parallel mode (II), the Mix knob blends the compressed signal with a fixed dry signal. This flexible circuit lets you enhance mix depth and maintain natural dynamics simultaneously.
The API 2500+ introduces an expanded variable threshold range of -20 to +20 dB. This extended range allows for precise tailoring of dynamics, accommodating a wider variety of audio sources and mixing styles. Whether you want gentle dynamic control or heavy compression, this feature ensures optimal performance for any application. From delicate acoustic recordings to energetic drum busses, the expanded threshold lets you dial in the ideal level of sensitivity.
The API 2500+ features an optional Auto Makeup Gain function for maintaining consistent output levels. This setting automatically compensates for gain reduction without manual adjustment. No matter how hard you push the compressor, Auto Makeup Gain guarantees a smooth experience. Save time and focus on getting the sound you want without being tricked by volume changes.
I needed it so badly to add to what we already have and it come out with just what we've been searching for, the Ponch of API, is one of a kind 😇
Please don’t ever try to compare this monster to the plugin This thing just opens up a mix on so many different levels you have to hear it for yourself. I own the ssl bus plus and neve 2264 and they all play a role on the right mix but on a rock or acoustic or indie style this is the BOSS. Couldn’t be happier
Great. It does exactly what it is intended to do.
Truly a special unit. Lives up to the hype.
A wonderfully versatile compressor that works on everything. It takes awhile to learn, but once you get the hang of it, it’s magic!
If you're reading this, just buy it. Yes, it's that good.
Killer
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