API 527 500 Series Discrete Compressor/Limiter #1

The API 527 joins the family of API VCA-based compressors, alongside the 225L and the 2500 Stereo Bus Compressor. Those familiar with these units will feel right at home with the 527. Like its counterparts, it offers both "feed-forward" (NEW) and "feed-back" (OLD) gain reduction methods, selectable from the front panel. This provides maximum flexibility, allowing users to choose between the traditional "old way" of compression or the more modern approach.

The "feed-back" method, used in most classic compressors, relies on gain control circuits that react to the processed signal. In contrast, the "feed-forward" method, common in newer VCA compressors, utilizes RMS detectors to determine gain reduction.

Features:

Audio circuit with 2510 and 2520 discrete op-amps and transformer output
Continuously variable, detented controls for Threshold, Attack, Release, and Ratio
Output Fader level control
10-segment VU/Gain Reduction meter with selector switch
Overload LED indicator
"Link" switch for multiple-unit compression linking
"New"/"Old" switch for feed-forward or feed-back compression selection
"Hard"/"Soft" knee compression curve switch
Patented THRUST® switch for frequency-dependent sidechain control
"IN" switch with hard relay bypass when in the "Out" position

US and EU parcels ship via UPS, ETA 1-7 working days from pickup day zero. That also applies to most locations worldwide.

All shipments are fully insured.

Bigger shipments requiring pallets or custom made crates ship to US, CA, JP, CN, AU and other outside of EU locations via DHL Air Freight, ETA is normally approx. 7-14 working days from pickup day zero.

Big shipments inside EU ship via different freight companies, recently mostly via ACE Logistics. Freight forwarders can use different courier companies for deliveries to final destinations.

Palletising and crating time can vary depending on the size of the shipment and packaging queue. We pack all our shipments with great care.

You are most welcome to pick your order up yourself from our Retrosonic Pro Audio showroom, studio and warehouse in Tallinn, Estonia.

We ship worldwide – contact us for a personal shipping quote or any other questions.

VAT (Value Added Tax) can be deducted if you have a company with a valid EU VAT number or if you're based outside of the EU. Non-EU buyers pay all and any import tax and duty as regulated by their local customs.