The API Audio 525 is a single channel compressor inside the confines of a 500 series rackable piece of gear. It is made up of all analog components, and in terms of general make up has some interesting and unique features. You make your microphone connections after you plug this into an API Lunchbox, which has XLR inputs and output for each module and powers everything up via it's own power supply. These 525's are exact copy reissues of the vintage versions from the 70's. This is only rack mountable in a Lunchbox type of casing.
In general, the make up of the API Audio 525 is unique, but there are some familiar features to it as well. Even with some unique parameters, I haven't found that the 525 is at all hard to use. For starters you've got two knobs on the top that control your input level (threshold), and your output level (gain make up). It then has different sections of buttons for release and mode, the former of which has two buttons for four different settings that will range from .01 to 2.0 s. The two modes are for a 20:1 ratio and a 2:1 ratio. It also has a de-esse button, an off button, and a bypass button. Lastly, it has a large knob for ceiling, which basically controls how much compression you're going to get. A manual might be necessary if you are unfamiliar with the make up of preamps, but I've never seen one.
To say the least, the API Audio 525 is a versatile compressor that sounds great for a number of different applications. I've found that it is easy to adapt this versatility to most applications out there if I'm looking for some beefy compression. I've used it on vocals, electric guitar, and snare drum - all of which I found it sound great when run through the 525 or even when tracked right through it. I've never used an original 525, so I can't say how it would compare them, but they say it is an exact copy, so you've got to take their word.
If you're putting together a Lunchbox collection of 500 series out board gear, the API Audio 525 is definitely something you should consider for your rack. For a compressor that sounds this great, the price isn't unresonable, and like I said earlier this is incredibly versatile and can be used for all sorts of different applications. Add a couple of these to your home studio and you're in a whole new ballgame...
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The compressor-limiter loop rgnration 525 uses op-amps 2510 and 2520 and thus offers the reliability and life luniformit are all CHARACTERISTICS API products.
Rdition the original API 525 of the beginning of the 70
Compressor-limiter feedback peak-detection
Output levels and threshold variables
CONTRL unique combination of features ceiling cls
VU display for viewing the rduction gain
Choice of four modes of time relchement
Dlimination function of sibilants
Traditional circuit design Fully discrte API
- The configuration gnrale Is it easy? YES
- The edition of sounds and effects is it easy? YES
- The manual is clear and sufficient? YES
- Effects are they effective, suitable and adequate ralistes? YES EXCELLENT
- Which instruments do you use? VOICE, GUITAR, DRUMS, etc ...
Sre value and recognized, high quality, excellent no doubt