Gear article

LD Systems SUB10A 10" Active PA Subwoofer

The LD Systems SUB10A is a compact active PA subwoofer designed for fixed installations and small-scale live sound applications. It features a custom 10-inch driver and a three-channel power amplifier that can drive additional satellite speakers, providing a foundation for a complete 2.1 sound system.

See live prices

Overview and Design

The SUB10A is engineered by LD Systems as a space-saving solution for low-frequency reinforcement. The cabinet is constructed from 15mm Medium Density Fibreboard (MDF), a material chosen for its acoustic damping properties and durability. For ease of transport and setup, the unit includes ergonomic carry handles and a threaded M20 flange on the top panel, allowing for the secure mounting of speaker poles to support satellite units.

Amplification and Connectivity

A defining feature of the SUB10A is its integrated three-channel power amplifier. Beyond powering the internal 10-inch woofer, the amplifier provides two additional output channels intended for full-range or satellite speakers. This architecture simplifies the signal chain, as a single active subwoofer can act as the central hub for a stereo PA setup, reducing the need for external power amps or complex cabling in permanent installations.

Performance Specifications

The unit utilizes a custom-made 10-inch driver that delivers a frequency range spanning 40 Hz to 120 Hz. While compact, the system is capable of producing a maximum sound pressure level (SPL) of 118 dB. This performance profile is tailored for environments where clear, controlled bass is required without the footprint of traditional 15-inch or 18-inch cabinets.

Market Position and Comparisons

Positioned within a mid-range price point of approximately £441, the SUB10A competes with other compact low-end solutions. While larger units like the QSC KLA181 or dB Technologies B-Hype 15 offer higher output levels, the SUB10A focuses on versatility through its multi-channel amp. It serves a different role than dedicated stage monitors like the RCF NX 915-SMA or SubZero C10M, acting instead as a primary low-end source for small venues or lounge installations.

Related gear

Frequently asked questions

What is the primary function of the LD Systems SUB10A?
The SUB10A is an active 10-inch subwoofer designed to provide low-frequency reinforcement for PA systems. It also serves as a central amplifier hub for a 2.1 system, capable of powering two satellite speakers.
Can I mount a speaker pole on the SUB10A?
Yes, the enclosure features a threaded M20 flange on the top. This allows users to mount a standard speaker pole to support a full-range satellite speaker directly above the subwoofer.
What is the frequency range of this subwoofer?
The SUB10A operates within a frequency range of 40 Hz to 120 Hz. This range is specifically tuned to handle deep bass frequencies that smaller full-range speakers cannot reproduce effectively.
How loud can the LD Systems SUB10A get?
The unit reaches a maximum Sound Pressure Level (SPL) of 118 dB. This is sufficient for small to medium-sized rooms, cafes, or intimate live performance spaces.
What material is used for the speaker cabinet?
The cabinet is built using 15mm MDF (Medium Density Fibreboard). This provides a sturdy structure that helps minimize unwanted resonances during high-output playback.
Does this subwoofer require an external amplifier?
No, it is an active subwoofer with a built-in power amplifier. It only requires a line-level signal and a power connection to operate.
How many channels does the internal amplifier have?
The internal amplifier features three channels. One channel is dedicated to the internal 10-inch woofer, while the other two are available to power external satellite speakers.
Is the SUB10A suitable for mobile DJs?
It is well-suited for mobile DJs working in smaller venues due to its compact size and ergonomic carry handles. Its ability to power satellite speakers also reduces the amount of gear needed for a mobile setup.
What type of driver is used in the SUB10A?
The unit features a custom-made 10-inch speaker driver designed specifically for the cabinet's dimensions and the amplifier's power output.
How does the SUB10A compare to an 18-inch subwoofer like the QSC KLA181?
The SUB10A is significantly smaller and more portable than an 18-inch sub like the KLA181. While it lacks the massive displacement and SPL of an 18-inch driver, it is easier to install in tight spaces and includes satellite power outputs which the KLA181 does not.
Can the SUB10A be used in permanent installations?
Yes, its compact design and the built-in 3-channel amp make it an ideal choice for permanent installations in bars, restaurants, or small studios where space is at a premium.
What is the typical price range for this model?
The LD Systems SUB10A is typically found in the price range of approximately £441. Prices may vary slightly based on the retailer and shipping costs.