Alpine SWE-815 Subwoofer Amplified Powered Active Sub with Wired Remote 100w RMS
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Ready-to-use amplified subwoofer box
The Alpine SWE-815 is a compact, self-contained subwoofer that plugs straight into your existing system with no extra amplifier needed.
8" (20cm) Amplified Subwoofer Box SWE-815
- 8" (20cm) SWE subwoofer with built-in 150W amplifier
- 100W RMS continuous output
- Wired remote control included — adjust level, phase and low-pass frequency (50–125Hz @-12dB/oct.)
- Port plug included for sealed or vented operation
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Specification
| Frequency Response | 34Hz - 1.5kHz |
|---|---|
| Impedance | 2x 2Ω |
| Sensitivity | 91.0dB/W(1m) |
| Dimensions | 288mm (W) x 291mm (H) x 253mm / 363mm (D) |
More specs
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What's Included
- Alpine SWE-815
- Remote level control with cable attached
- RCA & Speaker Inputs
- Wiring Kit
Alpine
About the Alpine SWE-815
From our tech experts at CEN
An active subwoofer with the amplifier built in, rated at 100w RMS, so you get bass from one compact unit rather than a separate sub, amp and enclosure.
Who it suits
Drivers who want more low end without rebuilding the system or losing the boot. Powered units suit cars where space is tight, and anyone who wants bass but not a competition install.
Our tech experts advise
It still needs a proper fused feed from the battery and a signal source, which is where most DIY attempts come unstuck. Setting level and crossover against your existing speakers is what makes it blend. Installation is priced per vehicle, so get in touch with your make, model and year and we will confirm what it needs and what the work involves. See car audio installation.
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Frequently Asked Questions
Q: Do I need an amplifier for this subwoofer?
A: Yes, unless it is an active (powered) subwoofer with a built-in amplifier. Passive subwoofers need an external amplifier matched to the RMS power and impedance shown in the Specification tab.
Q: What size enclosure does this subwoofer need?
A: The recommended enclosure volume is listed in the Specification tab where the manufacturer provides it. As a rule, sealed enclosures give tighter, more accurate bass while ported enclosures deliver more output. Contact CEN if you would like a recommendation for your build.
Q: What does RMS power mean?
A: RMS is the continuous power a subwoofer can handle, and it is the number that matters when matching an amplifier. Peak or max figures describe short bursts only. Match your amplifier output to the RMS rating in the Specification tab.
Q: Sealed or ported enclosure - which should I choose?
A: Sealed boxes are compact and produce tight, controlled bass suited to sound quality builds. Ported boxes are larger and produce more output at low frequencies, suited to those who want maximum impact. Either works well when built to the recommended volume.
Q: Can CEN build or supply an enclosure and fit everything?
A: Yes. CEN supplies enclosures and offers professional installation from our Nottingham premises, including amplifier wiring. Contact us to discuss your build.
