The Labtec LCS-2418 Flat Panel Speakers
speakers are cropping up across a multitude of manufacturer lineups. Labtec,
not a new contender in the field, has paired their 5.25" preexisting
subwoofer with SLAB technology to create a new product. Dubbed the Edge 418,
this is the first set of flat panels I've heard that are actually listenable
over long periods of time. Add that to the not one but three satellite
mounting options and you have the best sub $80 flat panel package tested to
date at TargetPC.
- Freq. Resp.:
- 5.5 watts
RMS each satellite, 19 watts RMS subwoofer @ 10% distortion
downward firing subwoofer
- 4 ohm satellite
- One year
- Price: $79.99
One of the
very few review sites to actually verify manufacturer claims, TargetPC tests
speakers as thoroughly as possible. Normally, I would have pictures and comments
on the power amplifiers, transformer and filter caps, but the sub enclosure
proved impossible to open without damaging the quality finish. Some measurements
were still able to be acquired, however others will be left out due to the
I listen informally for a few hours to a new rig, then whip out the testing
gear and take measurements. Upon power up, I immediately looked around the
room to see who hid the 8" sub that must have been present to pump out
the low freq.'s I was hearing---no wait, feeling. But I get ahead of myself.
Because I heard something that took me by surprise, I immediately cranked
up my testing suite and benchmarked the sub's response.
Frequency Response Relative to 100Hz
Room Response (2 walls)
Mounted Woofer & Port
table is intended only to show a few points of particular interest and what
placing the sub at the junction of two walls does to the frequency response.
With the sub at the intersection of two walls, two things happen. The first
is the theoretical increase of frequencies at or below 100Hz by 12dB, and
the second is the slight shifting of the very intended wild bass curve. Make
note of the nearfield -3dB point; it is dead on specs and the lowest I've
ever measured. Next, peek at the real world in room response. 70Hz is a whopping
10dB louder (twice as loud to the ear) than 100Hz and 59Hz. More precisely,
the intentional bass hump is notched up 5-10dB in the 65-84Hz range. I think
I found Labtec's "Real-Time Bass Equalization."
subwoofer output in room was 104dB SPL (sound pressure level) at 24 inches.
The smallish but longish port had a center frequency of 45Hz. The sub output
crosses over at 200Hz, the point where the satellites take over sound reproduction.
No power measurements were possible due the aforementioned enclosure difficulties.