Klipsch Sub-12HG Synergy Subwoofer 12 Inch
- 12 inch driver, floor-standing cabinet
- 600 W listed power
- RCA connection
- 40 lb weight
- Sky blue finish as listed
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A large wired subwoofer with a high listed power figure, meant for a room with open floor space. The listing gives no dimensions or frequency range, so check fit and tuning before buying.
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ASIN: B003VIWK0GModel: Sub-12Category: Subwoofers
Overview
A media room with open floor space gives this Klipsch subwoofer room to work, where a large driver in a floor-standing cabinet reinforces low frequencies from the main speakers over an RCA cable.
Klipsch pairs a big driver with a high power rating and a plain RCA input, which makes hookup straightforward for a receiver with a subwoofer output. The listing leaves out cabinet dimensions, frequency response and controls, and the finish is described as sky blue.
Who it's for
A room with space near the front speakers and a receiver with a standard subwoofer output suits this model. Apartment dwellers worried about bass reaching neighbors, or anyone short on floor space, should consider a smaller sub.
Pros and cons
- Large driver for low-frequency output
- Simple RCA hookup
- Floor standing, no mounting needed
- Cabinet dimensions not listed
- Wired RCA only
- Heavy and bulky to move
Performance notes
Output depends on driver size, amplifier power and room placement. A larger driver moves more air at low frequencies, but the room itself shapes the result, with corners boosting level and open walls thinning it. The listing gives no frequency range, so low-end extension is not confirmed.
Specifications
| Brand | Klipsch |
|---|---|
| Model | Sub-12 |
| Dimensions & fit | |
| Driver Size | 12 incheshigher than 51% of 38 subwoofers |
| Weight | 40 lb |
| Power & efficiency | |
| Power | 600 Whigher than 77% of 40 subwoofers |
| Construction & materials | |
| Color | Sky blue |
| Compatibility & installation | |
| Connectivity | RCA |
| Mounting | Floor standing |
| Other details | |
| Speaker Type | Subwoofer |
| Brand Tech | Klipsch |
Closest rivals on specs
Sony BRAVIA Theater Sub 9 SA-SW9 Wireless Subwoofer- Weight 40 vs 51.4 pounds (-22%)
Rockville BASS BLASTER 12 Subwoofer- Power 600 vs 800 watts (-25%)
- Weight 40 vs 44.7 pounds (-11%)
JBL Studio 660P Powered Subwoofer 12 Inch- Power 600 vs 500 watts (+20%)
- Weight 40 vs 25 pounds (+60%)
Frequently asked questions
Is the Klipsch Sub-12 a wireless subwoofer?
No. The listing gives RCA as the connection and does not mention any wireless option.
Does the Klipsch Sub-12 include its own cable?
The listing does not name a cable. Plan on having an RCA subwoofer cable on hand.
Can the Klipsch Sub-12 mount on a wall?
The listing gives floor standing as the mounting type and names no wall bracket.