PMC · Speakers
ACTIVE twenty5.21i
The Active twenty5.21i is the smallest model in PMC's Active twenty5i range, pairing ATL bass loading with 2x100W of built-in amplification.
fig. 01 · speakers
ACTIVE twenty5.21i

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From PMC
The Active twenty5.21i is a standmount speaker with its amplification built in: two 100-watt amplifier channels drive the cabinet directly, so there's no separate amp to add.
It carries PMC's ATL bass loading into the smallest cabinet in the Active twenty5i range, aimed at giving a compact speaker impact closer to a much larger design.
It's built for smaller rooms or as a compact active pair where a full separates system isn't practical.
Specifications
| Frequency Response | 46Hz – 25kHz |
|---|---|
| Sensitivity | 1Vrms = 96.5dB SPL @ 1m (low setting) / 106.5dB SPL @ 1m (high setting) |
| Effective ATL™ Length | 1.72m (5.6ft) |
| Impedance | >14kΩ |
| Drive Units | LF PMC 5.5” / 140mm long-throw g-weave™ cone with cast alloy chassis HF PMC/SEAS®, 19mm twenty5i series, SONOMEX™ fabric soft dome, Ferrofluid cooled, with 34mm surround and dispersion grille |
| Crossover Frequency | 1.65kHz |
| Input Connectors | Balanced analogue XLR and unbalanced RCA |
| Amplifier Power per Channel | HF 100WrmsLF 100Wrms LF 100Wrms |
| Dimensions | H 340mm (13.4”) W 162mm (6.4”) D 269mm (10.6”) including connectors (+ 9mm grille) |
| Weight | 6.15KG (13.55 Lbs) |



