The Harbeth Super HL5 is a three-way, reflex-loaded, stand-mounted loudspeaker known for its natural sound and ability to reproduce music with clarity and warmth. It features a 200mm Harbeth-made RADIAL2™ mid/bass driver, a 25mm ferrofluid-cooled tweeter, and a 20mm dome SuperTweeter. Key specifications include a frequency range of 40Hz – 20kHz ±3dB, 6-ohm impedance, and 86dB sensitivity. The speakers are designed for use away from walls and typically require stands to bring the tweeters to ear level. 
 
Here's a more detailed breakdown of the specifications:
 
General:
Type: Stand-mount, three-way, bass-reflex loudspeaker.
Drive Units: 200mm Harbeth-made RADIAL2™ mid/bass driver, 25mm ferrofluid-cooled tweeter, and 20mm dome SuperTweeter.
Frequency Range: 40Hz – 20kHz ±3dB (grille on).
Impedance: 6 ohms, easy to drive.
Sensitivity: 86dB/2.83V/1m.
Recommended Amplifier Power: 25W - 150W per channel.
Power Handling: 150W programme.
Connectors: Four 4mm gold-plated binding posts (bi-wireable).
Weight: 15.8 kg (34.75 lbs) each, unpacked. 
 
Dimensions:
Height: 635mm (25 inches).
Width: 322mm (12.7 inches).
Depth: 300mm (11.8 inches) + 12mm for grille and binding posts. 
 
Finish:
Available in various finishes, including Cherry, Walnut, and Rosewood.
The cabinets are handmade, and veneers may vary in color, shade, and grain structure.