Detail 01
Mix/Blend modes: OFF, X, and parallel
OFF uses compressed signal only; X crossfades between uncompressed and compressed signal; parallel adds compression while the uncompressed signal remains unchanged.
Product detailSKU #1500000327686
API2500+ Stereo Bus Compressor
1/2
Independent shopping perspective
The Korena take
API's 2500+ is a 19-inch dual-channel bus compressor for shaping the punch and tone of a stereo mix. Configure it for stereo compression or as two separate units using one compression setting, then choose old feedback-style or new feed-forward compression. The THRUST circuit is intended to deliver a punchy low end. Mix/Blend control supports compressed-only, crossfade, or parallel operation, while auto-makeup gain keeps output level constant as threshold or ratio changes. Two VU meters show input, output, and gain reduction.
Strong match
Who this is for
- Stereo-mix compression using selectable old feedback or new feed-forward compression approaches.
- Parallel or crossfade blending of compressed and uncompressed stereo signals.
- Rack installations needing balanced XLR audio connections and a balanced signal path.
Consider the trade-offs
When to look elsewhere
- Installations without space for a 19-inch rackmountable unit.
- Tasks requiring independent compression settings for the two separate channels.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Auto-makeup gain
Lets threshold or ratio change while automatically maintaining a constant output level.
Detail 03
Front-panel VU meters
Show input, output, and gain-reduction levels.
Detail 04
Rear connectors: XLR input/output and balanced 1/4-inch TRS sidechain
Provides balanced XLR audio connections and a balanced TRS sidechain connection.
Detail 05
Frequency response: ±0.5 dB, 20 Hz–50 kHz
States the unit's specified frequency-response range.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can the 2500+ run as two separate compressors?
Yes. Its dual-channel design can be configured for stereo compression or as two separate units via a single compression setting.
02What does the Mix/Blend control do?
It offers compressed-only operation, crossfading between uncompressed and compressed signal, or parallel blending of compressed signal into unchanged uncompressed signal.
03What warranty is offered?
API offers a five-year parts warranty for the 2500+.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsSound
- Frequency Response
- ±0.5dB 20Hz to 50kHz
3 detailsConnections & power
- Maximum Output Level
- +32dB
- Power Consumption
- 28.8W
- Rear Connectors
- XLR input, Balanced TRS 1/4 inch side chain, XLR output
1 detailsOther
- Signal to Noise Ratio
- 120dB
