ULS-15 vs Focal SUB 600P
The SUB 600P's low-frequency extension is 28 Hz against the ULS-15's 20 Hz, its high-frequency extension 270 Hz against 200 Hz, and its crossover 200 Hz against 60 Hz. Both share power handling (600 W).
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LoudspeakersSubwoofersPowered LoudspeakersDiscontinued
About the ULS-15
The Hsu Research ULS-15 (original version) is a sealed 15-inch powered subwoofer using a 1000 W short-term BASH amplifier, designed for deep, clean bass in music and home theater systems. It features a 15-inch driver in a sealed enclosure, with a bypassable low-pass crossover adjustable from 30 Hz to 90 Hz at 24 dB/octave, balanced XLR, RCA line-level, and speaker-level inputs, and was among the first subs to offer multi-channel RF wireless connectivity as an option. Hsu's published specs for the original ULS-15 list bass extension to about 15 Hz at -1 dB, emphasizing very low-frequency capability and excellent transient response for both music and movies. The cabinet measures roughly 18" H x 18" W x 19.25" D with a weight around 80 lb, offered in a satin black finish.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Frequency Response
- 20 Hz - 200 Hz
- Power Handling
- 600W
Speaker Design
Driver configuration and enclosure design
- Crossover Frequency
- 60 Hz
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 482.6 × 482.6 × 495.3 mm (W × H × D)
- Weight
- 29.48 kg (65 lbs)
Key Specifications
Frequency: 20-200 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions