The Pinnacle of QLN Design
The Signature series has been the pinnacle of QLN speaker design for decades. The truncated cabinet design, time aligned drivers, and resonance elimination technology all serves this goal. For the Signature’s 5th generation, QLN has taken these core design principles to new heights, resulting in a three dimensional stereo image with life like depth and spatial cues of the recording environment.
QLN has made it a point to place sound over statistics, and leaves measurements behind with the Signature. They say “It doesn’t matter how impressive a speaker measures if it leaves the listener un-involved with the music.” and we could not agree more. Mats Andersen, lead speaker designer for QLN, has focused not on low distortion or a flat frequency response, but on perfecting a technically sound design that also evokes great emotion and sensory connection to music. The Signature is the greatest expression of that core philosophy and approach to loudspeaker design.
Cabinet Design
A slanted baffle provides perfect time alignment between the woofer and tweeter, and the sloped cabinet top, with its minimized surface area, suppresses baffle effects and standing waves inside the cabinet.
The Signature cabinet is fully constructed from Qln’s unique Qboard® technology, effectively eliminating structural resonances in the acoustic chamber. The bass reflex port with its trumpet shape at both ends also further eliminates air turbulence.
The Woofer
This proprietary 7” Kevlar® mid-woofer is custom designed by Qln together with industry renowned driver manufacturer Scan Speak, and offers state of the art 21st century driver technology.
Qln has developed a coated Kevlar® bass/midrange driver with an under hung magnet system, forming a completely linear motor system. This allows for open air flow without any compression or turbulence, allowing for micro details and an absolute absence of acoustic noise. A built-in copper ring within the magnet system offers symmetrical drive, and the lower voice coil inductance produces higher dynamics in the midrange while also suppressing intermodulation distortion. All these technical innovations result in astonishing micro/macro dynamics from a 2-way speaker design.
The Tweeter
The advanced 25mm wide surround tweeter offers remarkable vocal reproduction and excellent imaging at all listening positions. Its large roll surround and textile dome diaphragm provides a flat frequency response above 30 KHz with outstanding off-axis dispersion. The unique AirCirc magnet system and its rear chamber eliminate any reflections and resonances.
The Crossover
QLN’s constant impedance crossover has been completely redesigned and hardwired with non-inductive capacitors being bypassed with copper film capacitors. For the mid-woofer, only flat foil inductors are used. All components are fastened with soft damping glue, and remaining coils are baked to avoid any internal component and filter resonances. Precision metal film resistors with high power handling capabilities are used for the tweeter, and 20W resistors are used for the woofer. With these elements near perfect timing is achieved within the crossover, which couples with low noise characteristics throughout the entire frequency range.
The QLN Signature is Part Time Audiophile's Product of the Year!
Specifications-
• 2-way fullrange speaker
• Qboard® Qln unique multi layer damping cabinet technology
• 25mm wide surround, AirCirc magnet, soft dome tweeter
• 184mm Kevlar® cone woofer
• High-end brand crossover components from leading manufactures
• Qln SP-One pure copper solid wire acoustic shielded cable
• Sensitivity: 87 dB SPL 1 Watt 1m, 100-10kHz
• Low frequency performance: -3dB 38Hz
• Impedance: 8 ohms
• Amplifier requirements: 50-250 Watt RMS
• Terminal: WBT Single wire
• Dimensions (HxWxD): 448x280x480mm
• Weight: 31,0 kg each
• Finish: Walnut Matte, Walnut Burl Piano