Powered column subwoofer
PO-SUBP-III
Applications
- Conference system
- Medium size performance
Feature
- Built-in amplifier and DSP, self-powered subwoofer with PO45K
- Working with PO45K, compact 18-inch subwoofer speaker
- Direct radiation type small subwoofer, the limit of LF can be as low as 35Hz (-10dB)
Technical Specification
| Parameter Name | Parameter Value |
|---|---|
| FREQUENCY RESPONSE | 40 Hz-120 Hz (±3 dB), 35 Hz-180 Hz (-10dB) |
| NOMINAL COVERAGE | Omnidirectional |
| MAXIMUM SPL | 134 dB SPL peak |
| DRIVERS | LF: 1×18” woofer (100mm voice coil) |
| POWER RATING (AES) | 1500W |
| POWER REQUIREMENT | 200-240V~50-60Hz |
| AMPLIFIER MODULE | Dual channel 2000W (4Ω) |
| THD+N | 0.82% |
| SNR | 104 dB |
| COOLING SYSTEM | Airflow from back to front, Forced cooling |
| OUTPUT ELECTRIC CIRCUIT | Class D circuit |
Physical Data
| Parameter Name | Parameter Value |
|---|---|
| DIMENSIONS (HxWxD) | 534 x 526 x 596 mm |
| WEIGHT | 42 kg / 92.42 lbs |
| CONNECTORS | USB, RJ45, XLR, POWERCON, SPEAKON |
| SPEAKER CABLES | Not provided in image |
| MATERIALS | 15mm, 18mm Baltic birch plywood |
| FINISH | Black Polyurea paintings |
| GRILLE | Black epoxy mesh grille with acoustically reticulated cloth |
ZSOUND PO-SUBP-III: The Ultimate Powered Column Subwoofer with Integrated DSP
In the rapidly evolving world of professional audio, efficiency and integration are no longer just “nice-to-have” features—they are essential requirements. The ZSOUND PO-SUBP-III stands at the forefront of this shift as a high-performance powered column subwoofer (an active bass unit that includes its own internal amplification and signal processing). Specifically engineered to serve as the technological heart of a Column Speaker System (a sleek, vertical array of speakers designed to provide wide-angle sound coverage with a minimal visual footprint), the PO-SUBP-III eliminates the need for heavy external amplifier racks, making it the perfect choice for mobile DJs, corporate event planners, and modern houses of worship.
The Power of Integration: Built-in Amplification and DSP “Brains”
What truly sets this powered column subwoofer apart from traditional passive alternatives is its internal architecture. Most subwoofers require a separate power amplifier and a mess of speaker cables to function. However, the PO-SUBP-III features a built-in Dual Channel 2000W Class D amplifier (a high-efficiency electronic circuit that provides massive power without generating excessive heat). This allows the subwoofer to not only power itself but also provide the necessary energy for its companion column tops, such as the PO45K.
Complementing this raw power is an integrated Digital Signal Processor (DSP – the “internal brain” of the speaker that optimizes sound quality in real-time). The DSP allows users to fine-tune the crossover (the invisible filter that decides which frequencies go to the sub and which go to the tops), ensuring that the bass is deep and the vocals are crystal clear. Just as brilliant stage lighting designs can be programmed to match the mood of a performance, the DSP in this powered column subwoofer can be calibrated to suit the specific acoustics of any room, from a hollow gymnasium to a plush hotel ballroom.
Seismic Impact: 18 Inches of Low-Frequency Authority
At its core, the PO-SUBP-III is designed to move air with authority. It utilizes a massive 18-inch woofer equipped with a 100mm voice coil (the electromagnetic wire coil that drives the speaker cone back and forth). This large-scale driver allows the system to reach a low-frequency limit of 35Hz (the threshold where sound stops being a noise and becomes a physical sensation you feel in your chest).
With a Maximum SPL (Sound Pressure Level – the standard measurement of how loud a speaker can get before it begins to distort) of 134dB, this powered column subwoofer provides the “anchor” needed for high-stakes audio environments. Whether you are reproducing the punchy kick of a rock drum kit or the deep atmospheric rumble of a cinematic presentation, the PO-SUBP-III delivers consistent, uncompressed bass even during long hours of continuous operation.
Professional Durability: Baltic Birch and Polyurea Finish
A powered column subwoofer intended for professional use must be able to survive the “road life.” ZSOUND constructs the PO-SUBP-III cabinet from 15mm and 18mm Baltic birch plywood (a premium wood known for its incredible strength and lack of unwanted vibrations). Cheaper subwoofers often use plastic or thin particle board which can rattle or crack, but the high-density birch used here ensures that the only thing vibrating is the air.
To protect this acoustic investment, the cabinet is coated in a black polyurea painting (a rugged, waterproof finish that resists scratches, impacts, and weather). The design also includes ergonomic handles and a top-mounted pole socket, allowing you to mount your column tops directly above the subwoofer in seconds. By choosing this powered column subwoofer, you are investing in a rugged, all-in-one solution that delivers studio-quality sound in a package built for the demands of touring and fixed installation.
FAQ: Professional Insights for the PO-SUBP-III
Q: Can the PO-SUBP-III power more than one PO45K column? A: Yes. The dual-channel amplifier is designed to drive the internal 18-inch subwoofer on one channel while providing a high-power output for the top column speakers on the second channel, creating a perfectly balanced stereo-over-mono setup.
Q: How does the built-in DSP help with room reflections? A: The DSP includes presets and manual adjustment options that allow you to “cut” certain frequencies that might be causing echoes or “muddiness” in a room, ensuring that your powered column subwoofer sounds tight and controlled regardless of the venue’s shape.
Q: Is it easy to transport for a solo performer? A: While it is a powerful 18-inch unit, its integrated design means you have fewer pieces of gear to carry. Since the amplifier and processor are built-in, you carry one box instead of three, significantly reducing setup time and labor.
-
Point Source Speaker
The Definitive Guide to Point Source Speaker Systems In the world of professional audio, achieving a natural and coherent sound image is the ultimate goal. A Point Source Speaker (a loudspeaker system where all sound frequencies originate from a single point in space) is the cornerstone of this pursuit. Unlike complex arrays that can sometimes […]
-
VCSUB-218
VCSUB-218 Applications Feature Technical Specification Parameter Name Parameter value Frequency Response 22 Hz-160 Hz(±3 dB) Nominal Coverage Omnidirectional Power Rating 2x2400W AES, 2x9600W PEAK Nominal Impedance 4 ohm Maximum SPL 145 dB Drivers 2 x 18″ (100mm voice coil) subwoofer Physical Data Parameter Name Parameter value Dimensions (HxWxD) 561 x 1170 x 691mm / 22″ […]
-
VCD15
Large scale line array speaker Applications Feature Technical Specification Parameter Name Parameter value Response Frequency 35Hz-20kHz Nominal Coverage (-6dB) 100° (H) 10° (V) Power Rating (AES) HF/MF/LF: 150w/400w/2*800w(AES) Nominal Impedance 16 ohm Maximum SPL 147 dB Drivers LF 2×15″ neodymium woofer (75mm voice coil) MF 2×8″ neodymium mid-range driverHF 2×3″ (75mm voice coil) neodymium tweeter […]
-
LC208
Dual 8 inch line array module Applications Feature Technical Specification Parameter Name Parameter value Frequency Response 80 Hz – 18 kHz Nominal Coverage (-6dB) 110° (H) × 10° (V) vertical adjustable Power Rating (AES) HF: 120 W / LF: 500 W Nominal Impedance HF: 16 ohm / LF: 16 ohm Maximum SPL HF: 136 dB […]
-
PO45K column speaker
Active column speaker Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 200 Hz-18kHz (±3dB), 145 Hz-20kHz (-10dB) NOMINAL COVERAGE (-6dB) 100°(H) x 45°(V) (Up ±15°, down ±30°) SENSITIVITY (@1w/1m) 98 dB SPL POWER RATING (AES) 570W (AES) NOMINAL IMPEDANCE 8 ohm MAXIMUM SPL 132 dB SPL peak DRIVERS LF: 4×5″ woofer (45mm voice […]
-
PO-SUBP-III
Powered column subwoofer Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 40 Hz-120 Hz (±3 dB), 35 Hz-180 Hz (-10dB) NOMINAL COVERAGE Omnidirectional MAXIMUM SPL 134 dB SPL peak DRIVERS LF: 1×18” woofer (100mm voice coil) POWER RATING (AES) 1500W POWER REQUIREMENT 200-240V~50-60Hz AMPLIFIER MODULE Dual channel 2000W (4Ω) THD+N 0.82% SNR 104 […]
-
PO-SUBK subwoofer
Column speaker subwoofer Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 40 Hz-120 Hz (±3 dB), 35 Hz-180 Hz (-10dB) NOMINAL COVERAGE (-6dB) Omnidirectional SENSITIVITY (@1W/1M) 97 dB POWER RATING (AES) 1500W (AES) NOMINAL IMPEDANCE 8 ohms MAXIMUM SPL 134 dB SPL peak DRIVERS LF: 1×18″ woofer (100mm voice coil) Physical Data Parameter […]
-
CP15M 15 inch monitor speaker
Coaxial stage monitor Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 70 Hz~16 kHz (±3 dB), 50 Hz~18 kHz (-10 dB) NOMINAL COVERAGE (-6dB) 60°(H), 40°(V) MONITOR ANGLE Normal mode 34.5° / Built-in angle risers 52° SENSITIVITY (@1W/1m) 98 dB POWER RATING (AES) 500W NOMINAL IMPEDANCE 8 ohm MAXIMUM SPL 140 dB (AES) […]
-
M215 stage monitor speaker
Dual 15 inch stage monitor Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 65 Hz ~ 16 kHz (±3 dB), 45 Hz ~ 18 kHz (-10 dB) NOMINAL COVERAGE (-6dB) 60°(V) 80°(H) MONITOR ANGLE (@1w/1m) 98 dB POWER RATING (AES) 1000W NOMINAL IMPEDANCE 8 ohm MAXIMUM SPL 138 dB DRIVERS LF: 2×15″ (75mm […]
-
M212 12 inch monitor speaker
Dual stage monitor speaker Applications Feature Technical Specification Parameter Name Parameter value Frequency Response 85 Hz ~ 16 kHz (±3 dB), 55 Hz ~ 18 kHz (-10 dB) Nominal Coverage (-6dB) 60° (V) × 80° (H) Sensitivity (@1W/1m) 98 dB Power Rating (AES) 800 W Nominal Impedance 8 ohm Maximum SPL 133 dB Drivers LF: […]
-
M15 stage monitor
15 inch stage monitor Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 60 Hz-16 kHz (±3 dB), 50 Hz-18 kHz (-10 dB) NOMINAL COVERAGE (±dB) 60°(H) 40°(V) Constant directivity SENSITIVITY (±1w/1m) 100 dB SPL POWER RATING (AES) 450W NOMINAL IMPEDANCE 8 ohm MAXIMUM SPL 133 dB (peak) DRIVERS LF: 1 x 15″ (75mm […]
-
M12 12 inch stage monitor
12 inch stage monitor Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 65 Hz-16 kHz (±3 dB), 55 Hz-18 kHz (-10 dB) NOMINAL COVERAGE (-4 dB) 60°(H) 40°(V) Constant directivity SENSITIVITY (@1w/1m) 98 dB SPL POWER RATING (AES) 400W NOMINAL IMPEDANCE 8 ohm MAXIMUM SPL 130 dB (peak) DRIVERS LF: 1 x 12″ […]
-
15 inch moitor speaker
Small stage monitor Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 50 Hz-16 kHz (±3 dB), 40 Hz-18 kHz (-10 dB) NOMINAL COVERAGE (±dB) 80°(H), 80°(V) Constant directivity MAXIMUM SPL 132 dB (peak) CHANNEL GAIN CH1 (LOW): 26dB, CH2 (HI): 20dB POWER RATING (AES) 2 * 500W@4Ω + DSP INPUT IMPEDANCE 18KΩ balanced […]
-
V215 Dual 15 inch point source speaker
Powerful Dual 15-Inch Professional Speaker Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 45Hz-16kHz (±3dB), 35Hz-18kHz (-10dB) NOMINAL COVERAGE 60°(H) x 90°(V) SENSITIVITY (@1W/1M) 98 dB POWER RATING (AES) 980W NOMINAL IMPEDANCE 8 ohm MAXIMUM SPL 133 dB SPL (peak) DRIVERS HF: 1×3″ (75mm voice coil) compression driverLF: 2×15″ (75mm voice coil) subwoofer […]
-
R15P-III 15 inch point source speaker
Powerful 15-Inch Passive Speaker Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 50 Hz-18 kHz (±3 dB), 30 Hz-20 kHz (-10dB) NOMINAL COVERAGE 80° x 50° MAXIMUM SPL 123 dB SPL, 129 dB SPL peak CHANNEL GAIN CH1 (LOW): 26dB, CH2 (HI): 20dB POWER RATING (AES) 2 * 500W@4Ω + DSP INPUT IMPEDANCE […]
-
R12P-III 12inch point source speaker
Reliable 12-Inch Passive Loudspeaker Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 55 Hz-18 kHz (±3 dB), 40 Hz-20 kHz (-10 dB) NOMINAL COVERAGE 80° x 50° CHANNEL GAIN CH1 (LOW): 26dB, CH2 (HI): 20dB POWER RATING (AES) 2 * 500W@4Ω + DSP INPUT IMPEDANCE 18KΩ balanced / 9KΩ unbalanced THD+N (0.1w to […]
-
R10P-III 10 inch full range speaker
Professional 10-Inch Passive Speaker Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 55 Hz-18 kHz (±3 dB), 50 Hz-20 kHz (-10 dB) NOMINAL COVERAGE 80° x 50° MAXIMUM SPL 118 dB SPL, 124 dB SPL peak CHANNEL GAIN CH1 (LOW): 28dB, CH2 (HI): 20dB POWER RATING (AES) 2 * 500W@4Ω + DSP INPUT […]
-
HD15 15 inch point source speaker
Professional 15-Inch Loudspeaker Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 80 Hz-16 kHz (±3 dB), 50 Hz-18 kHz (-10 dB) NOMINAL COVERAGE 70°(H), 100°(V) Constant directivity SENSITIVITY (@1w/1m) 100 dB POWER RATING (AES) 500W NOMINAL IMPEDANCE 8 ohm MAXIMUM SPL 127 dB SPL, 133 dB SPL peak DRIVERS LF: 1×15″ (75mm voice […]
-
CP15 15 inch point source speaker
Versatile 15-Inch Point Source Speaker: Powerful Audio Applications Feature Technical Specification Parameter Name Parameter Value Frequency Response 60 Hz ~ 16 kHz (±3dB), 50 Hz ~ 18 kHz (-10dB) SENSITIVITY (@1w/1m) 103 dB SPL POWER RATING (AES) 500W NOMINAL IMPEDANCE 8 ohm MAXIMUM SPL 130 dB SPL, 136 dB SPL peak DRIVERS LF: 1×15″ (75mm […]
-
CP 10 10 inch point source speaker
High-Performance 10-Inch Point Source Speaker Applications Feature Technical Specification Parameter Name Parameter Value Frequency Response 60 Hz ~ 16 kHz (±3dB), 50 Hz ~ 18 kHz (-10dB) SENSITIVITY (@1w/1m) 100 dB SPL POWER RATING (AES) 500W NOMINAL IMPEDANCE 8 ohm MAXIMUM SPL 127 dB SPL, 133 dB SPL peak DRIVERS LF: 1×10″ (75mm voice coil) […]
-
CP12 12 inch point source speaker
Professional 12 Inch Point Source Speaker Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 55 Hz ~ 16 kHz (±3 dB), 45 Hz ~ 18 kHz (-10 dB) NOMINAL COVERAGE 80°(H) 80°(V) Constant directivity SENSITIVITY (@1w/1m) 98 dB SPL POWER RATING (AES) 450W NOMINAL IMPEDANCE 8 ohms MAXIMUM SPL 124 dB SPL, 130 […]
-
CP8 8 inch point source speaker
Versatile 8-Inch Point Source Speaker Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 90 Hz ~ 18 kHz (±3 dB), 50 Hz ~ 20 kHz (-10 dB) NOMINAL COVERAGE 80°(H), 80°(V) Constant directivity SENSITIVITY (@1w/1m) 93 dB SPL (90-20 kHz) POWER RATING (AES) 250W (continuous), 1000W (peak) / 500W (recommended) NOMINAL IMPEDANCE 8 […]
-
P15 15 inch point source speaker
High-Power Point Source Speaker Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 60 Hz-18 kHz (±3dB), 45 Hz-20 kHz (-10 dB) NOMINAL COVERAGE (-6dB) 50°-100°(H), 55°(V) Constant directivity SENSITIVITY (@1w/1m) 98 dB SPL POWER RATING (AES) 450W NOMINAL IMPEDANCE 8 ohm MAXIMUM SPL 130 dB (peak) DRIVERS LF: 1 x 15″ (75mm voice […]
-
P12 12 inch point source speaker
Professional 12-Inch Point Source Speaker Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 60 Hz-18 kHz (±3dB), 50 Hz-20 kHz (-10dB) NOMINAL COVERAGE (-4dB) 50°-100°(H), 55°(V) Constant directivity SENSITIVITY (@1w/1m) 96 dB SPL POWER RATING (AES) 400W NOMINAL IMPEDANCE 8 ohm MAXIMUM SPL 128 dB (peak) DRIVERS LF: 1×12″ (75mm voice coil) wooferHF: […]
-
P10 10 inch point source speaker
Compact Point Source Speaker Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 70 Hz-18 kHz (±3 dB), 55 Hz-20 kHz (-10 dB) NOMINAL COVERAGE (-6 dB) 50°-100°(H), ±55°(V) Constant directivity SENSITIVITY (@1w/1m) 95 dB SPL POWER RATING (AES) 350W NOMINAL IMPEDANCE 8 ohm MAXIMUM SPL 126 dB (peak) DRIVERS LF: 1 x 10″ […]
-
G8 8 inch point source speaker
8 inch full range speaker Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 100 Hz ~ 20 kHz (±3 dB)80 Hz ~ 20 kHz (-10 dB) NOMINAL COVERAGE (-6dB) 80°(H), 80°(V) Constant directivity SENSITIVITY (±1w/1m) 94 dB SPL POWER RATING (AES) 150W NOMINAL IMPEDANCE 8 ohm MAXIMUM SPL 115 dB / 121 dB […]
-
G6 6inch point source speaker
6-Inch Point Source Speaker Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 120 Hz-20 kHz (±3 dB), 100 Hz-20 kHz (±6 dB) NOMINAL COVERAGE (-6 dB) 80°(H), 80°(V) Constant directivity SENSITIVITY (±1w/1m) 94 dB SPL POWER RATING (AES) 130W (AES) NOMINAL IMPEDANCE 8 ohm MAXIMUM SPL 115 dB / 121 dB SPL peak […]
-
G4 Full Range Speaker
4.5-Inch Full Range Speaker Applications Feature Technical Specification Parameter Name Parameter Value Frequency Response 130 Hz-18 kHz (±3 dB), 100 Hz-20 kHz (-10 dB) Nominal Coverage (-6 dB) 70°(H), 70°(V) Constant directivity SENSITIVITY (@1w/1m) 92 dB SPL POWER RATING (AES) 50W NOMINAL IMPEDANCE 8 ohm MAXIMUM SPL 109 dB SPL, 115 dB SPL peak DRIVERS […]
-
LC10SP-III Active 15 inch subwoofer
Pro subwoofer for clubs Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 40 Hz-150 Hz (±3 dB) NOMINAL COVERAGE Omnidirectional MAXIMUM SPL 131 dB SPL peak DRIVERS 1×15″ woofer (75mm voice coil) POWER REQUIREMENT 200-240V-50-60Hz AMPLIFIER MODULE Dual channel 2000W (4Ω) THD+N (0.1w to 1/2 power) 0.82% SNR 104 dB OUTPUT ELECTRIC CIRCUIT […]
-
LA206SP-III Avtive 15 inch subwoofer
Active compact subwoofer Applications Feature Technical Specification Parameter Name Parameter Value FREQUENCY RESPONSE 35 Hz-150 Hz (±3 dB), 30 Hz-200 Hz (-10 dB) NOMINAL COVERAGE (-6dB) Omnidirectional CHANNEL GAIN 32 dB POWER RATING (AES) 1000W@8Ω + DSP INPUT IMPEDANCE 18kΩ balanced / 9kΩ unbalanced THD+N (0.1w to 1/2 power) <0.05% SIGNAL TO NOISE RATIO >98 […]