RCF SUB-705AS-MK3
Best portable subwoofer for mobile DJs and small venue live sound.
Experience powerful low-end with the RCF SUB 705-AS MK3, a professional 15-inch active subwoofer designed for live sound. This portable unit delivers deep, impactful bass, perfect for small to mid-sized venues and ideal for pairing with RCF's 10-inch or 12-inch full-range speakers. Its integrated Class-D amplifier ensures high output and efficiency, while the robust, all-wood cabinet guarantees durability for frequent use. Easily manage settings with rear panel controls for volume, EQ, phase, and crossover selection.
$1399.00
Owner Satisfaction
4.7
/ 5
Category Rank
501
/ 6561
#501 in Speakers
Price vs Category Average
-4%
Below average
Frequency Response
40120
/ Hz to Hz
Who it's for
- Mobile performers needing massive output from a small footprint
- Solo DJs and musicians who handle their own gear transport
- Sound engineers wanting reliable, plug-and-play system protection
Who should skip it
- Bass enthusiasts requiring deep sub-bass frequencies below 40 Hz
- Budget-conscious buyers seeking entry-level or value-oriented audio gear
- System integrators needing advanced network control and parametric EQ
Performance breakdown
Low-end impact
The 15-inch driver delivers deep, authoritative bass for professional live environments.
Output efficiency
Class-D amplification provides high SPL levels without unnecessary power waste.
Build durability
Rugged all-wood construction handles the rigors of frequent touring and transport.
Portability
Substantial weight makes it stable but requires effort for solo setup.
Control precision
Rear-panel adjustments allow for seamless integration with various full-range speaker setups.
System protection
Integrated soft limiters effectively safeguard components during high-demand performance peaks.
Key Specs
Frequency Response
40 Hz to 120 Hz
Maximum SPL @ 1m
131 dB
Woofer
15'' with 3.0'' voice coil
Total Power Output
1400 W Peak / 700 W RMS
Input Connectors
Stereo XLR (bal/unbal)
Output Connectors
Stereo XLR
Dimensions
598 mm (H) x 420 mm (W) x 590 mm (D)
Weight
27.5 kg (60.63 lbs)
Features
- Optimized bass excursion management
- Adjustable volume, EQ, and phase controls
- Switchable crossover frequencies
- Integrated soft limiter and protection
- Designed for easy portability
- Rugged all-wood cabinet construction
What customers say
The RCF SUB-705AS-MK3 earns high praise, especially for its exceptional balance of powerful bass and manageable portability. Users consistently note the tight, punchy output from the 15-inch woofer, which delivers performance beyond what its compact size suggests. This ease of transport is a major advantage for mobile professionals, simplifying setup and teardown compared to larger units. The integrated Class D amplification is reliable, ensuring consistent performance during long events. Its built-in features simplify system integration effectively. Overall, the sentiment centers on high quality, dependable operation, and excellent value, establishing this subwoofer as a highly recommended, robust workhorse for live sound applications.
Know before you buy
This subwoofer is specifically designed to complement RCF’s 10-inch or 12-inch full-range speakers. Its output and frequency range are balanced to provide a seamless transition for small to mid-sized venues.
Yes, the rear panel features switchable crossover frequencies, allowing you to fine-tune the hand-off between the subwoofer and your main speakers for a cleaner sound.
Yes, the unit is built with a rugged, all-wood cabinet designed to withstand the rigors of touring and frequent setup changes. While it weighs 27.5 kg, its construction is focused on long-term durability.
The SUB 705-AS MK3 includes an integrated soft limiter and protection circuitry. These features help prevent damage to the driver during high-output performances by managing excursion and preventing clipping.
It uses standard professional XLR connectors for both input and output. It supports both balanced and unbalanced signals, making it compatible with most professional mixing consoles and audio interfaces.
With a maximum SPL of 131 dB and 700 W RMS power, it provides significant low-end punch for its size. It is engineered to maintain clarity and impact in small to mid-sized venues without distorting.
Still have a question?
Ask Hayley anything about this product before you decide.