La Boite concept LD130 £1,180

Active 2.1 with built-in USB DAC

Lenard Audio Sarabande

System	4-way active
Cabinet	Circular box, isobaric (bass)
Price	AU$ 10,000 (pair)
Speakers/Amps	100 Watt amp for the tweeter (harmonics) 100 Watt amp for the 5 inch speaker (upper voice) 100 Watt amp for the 8 inch speaker (lower voice) 2 x 100 Watt amps for the 2 x 12 inch speakers (sub-bass)
Digital input	no
Analogue input	RCA/XLR
Crossover	Linkwitz-Riley 4th order time aligned 20 - 100 Hz 100 - 600 Hz 600 - 6000 Hz 6000 - 20000 Hz

 

Siegfried Linkwitz 1935-2018

 

Siegfried Linkwitz was well known as the co-inventor of the Linkwitz–Riley filter along with Russ Riley. He has submitted several important technical papers to the Journal of the Audio Engineering Society and other related publications, which have become foundational to modern loudspeaker theory. Wikipedia

Linkwitz Lab Orion

System	Full-range open-baffle loudspeaker
Price	Starting at $8200 (pair)
Speakers	Tweeter - Seas T25CF002 - 1.4 kHz to 20 kHz Midrange - Seas W22EX001 - 120 Hz to 1.4 kHz Woofer - 2 x Peerless 10" XLS, 830452 - 20 Hz to 120 Hz
Digital input	n/a
Analogue input	yes
Amp	8 x 60 W power amplifiers - AT6012 recommended
Crossover	3-way active Crossover/Equalizer LR4 crossover filters (24 dB/oct acoustic)

 

DIY also possible.

ASP/crossover assembled and tested: $1030

Flat pack kit with everything needed to built the boxes, including wiring harness: $1300

Drivers: 4 tweeters, 2 mids, 4 woofers: $1850

12 channel ATI amp: $1800

 

 

Linkwitz Lab Pluto 2.1

System	Omni-directional 2-way Acoustic frequency response: 60 Hz to 15 kHz 12 dB/octave roll-off below 60 Hz, Omni-directional radiation below 3 kHz
Price	$2995
Cabinet	4 inch and 1.5 inch or equivalent metric PVC or ABS plumbing pipesend associated end caps, knees and pipe couplers
Digital input	n/a
Analogue input	RCA?
Amp	Woofer amplifier 150 W peak, Tweeter amplifier 50 W peak
Crossover	Equalized woofer and tweeter response, Crossover at 1000 Hz, LR4 (24 dB/oct)

 

DIY possible.

Subwoofers also available

Linkwitz Lab LX521

• 4-way loudspeaker system with woofer, lower midrange, upper midrange and tweeter
• 3-way ASP crossover/equalizer with LR4 filters at 120 Hz and 7 kHz,
  assembled on two ORION ASP printed circuit boards
• Passive 1st order crossover between lower midrange and upper midrange at 1 kHz,
  located in base of midrange/tweeter baffle

 

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