The JBL 4645C ranks #24 out of 110 total Large Home Subwoofers (Over 75 lbs) for sound quality. See all Subwoofers rankings for every top pick.
Brand: JBL
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#24 JBL 4645C: $4999 Passive eBay
Pros: Independent CEA-2010 testing records 98.9 dB at 20 Hz and 127.3 dB through 40-80 Hz. The ported, front enclosure with 18” (457mm) driver is best suited to upper-bass support in a modest room.
Cons: Deep-bass output is limited relative to its midbass result, so it is not the right choice for the lowest movie effects. The 1009.6H x 673.1W x 450.8D mm cabinet and 62.6 kg mass still need deliberate placement and calibration.
How it compares: Just above it: Monoprice Monolith M-215 - $1999 cheaper, 1.4dB less max output. Just below it: SVS PC13-Ultra - $3300 cheaper, 1.5dB less max output.
| CEA-2010-A Average (40-80Hz) | 127.3 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 39.7"H x 26.5"W x 17.7"D (1009.6 x 673.1 x 450.8 mm) |
| Drivers | 18" (457mm) driver |
| Enclosure | ported, front |
| Measurement Source | Data-bass |
| Output SPL at 20 Hz | 98.9 dB |
| Output SPL at 25 Hz | 114.0 dB |
| Output SPL at 31.5 Hz | 118.7 dB |
| Output SPL at 40 Hz | 122.0 dB |
| Output SPL at 50 Hz | 123.7 dB |
| Output SPL at 63 Hz | 129.7 dB |
| Output SPL at 80 Hz | 133.9 dB |
| Output SPL at 100 Hz | 135.1 dB |
| Output SPL at 125 Hz | 135.8 dB |
| Passive | Yes |
| Warranty | 5/3/2 |
| Weight | 138 lbs (62.6 kg) |
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- Independently measured by Data-bass; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons