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Introduction
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LXstudio is 3-way loudspeaker that combines the
LXmini with two LXsub4 dipole woofers.
It requires addition of two 200 W
or four 50 W power amplifiers and a miniDSP 4x10HD unit to form a system that
covers the 20 Hz to 20 kHz frequency range with excellent clarity and dynamism.
With an LR2 crossover at a low 60 Hz, the dipole woofers can be placed against the side
walls of a room and the LXmini used as near-field monitors. Path length
differences to the listener can be compensated for in the DSP unit. Dipole
woofers have the advantage of less room mode excitation, Dipole
woofers have the advantage of less room mode excitation and thus preserve
articulation in bass sounds, which matters even in a
highly damped recording/mixing studio.
LXstudio is a speaker that is on par with the
LX521.4 in terms of frequency range, clarity, imaging, sound stage size, dynamics and disappearance, albeit
at somewhat lower maximum sound levels in the midrange and above. It is more flexible in room
placement and woofer setup. LXstudio provides precise and highly revealing
rendering of stereo recordings. |
LXstudio Construction Plans
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The LXstudio Construction Plans are available as PDF
only and consist of two parts:
LXmini Construction Plans
+ LXsub
Construction Plans.
To order the LXstudio plans choose
these two items from plans,
CDs downloads (or navigate to magicLX.com or Madisound)
If you already own the LXmini plans, then you only order the
LXsub plans from plans,
CDs downloads (or navigate to magicLX.com or Madisound).
The LXsub Construction plans contain information for building
LXsub2 and LXsub4.
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I provide Owner Support pages for updates to
the LXmini and LXsub.
Questions for help should be posted on the OPLUG
forum.
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Have fun, create memories!
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Complete systems
After you have received the Construction Plans you
may realize that you do not have the time, skill or confidence to build
the speaker system yourself. Or, you may know this from the outset and
want to buy a professionally assembled and finished system. Here then are
licensed manufacturers, who ship worldwide:
From Germany: www.magicLX521.com
for LXmini, LX521, LX521.4, LXstudio with PowerBox, PowerHouse
From USA: www.theorionspeakers.com
for Orion-4, LXmini
See Terms,
Conditions & Blacklist to guarantee that you receive a genuine
LINKWITZ LAB product. |
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At the "Reproduced Sound 2015" Conference of the
the UK Institute of Acoustics I gave a talk "The
Magic in 2-Channel Sound Reproduction - Why is it so rarely heard?"
The pictures below show an outdoor frequency response
measurement of LXmini and LX521 dipole woofer. It is part of the LXstudio design
to achieve proper addition of the two outputs through the crossover region. The
addition depends upon the frequency dependent magnitude and phase shift of the
LXmini contribution and the LX521 dipole woofer contribution. Ideally they are
in-phase and add to a flat response as LXstudio and dipole woofer output
magnitudes vary due to the LR2 crossover filter used. The difference response
indicates how the outputs of changing magnitude subtract. If the magnitudes are
identical and 1800 out-of-phase an infinitely deep notch should be
seen. The measurement is perturbed by environment reflections and power line
harmonics. The sum and difference traces give a good indication as to how well
the two output signals add in-phase and with correct magnitude.
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