Features
At the heart of the EMP Tek EF30 Series speaker system is a fiberglass cone bass/mid-
range driver (speaker). The fiberglass cone resists flexing better than typical speaker
cone materials, thereby providing highly articulate and accurate reproduction of the
audio signal. The stiffness and lightweight characteristics of fiberglass, combined with
the driver’s large motor structure, give the drivers high excursion capability. This high
excursion capability prevents compression or distortion of the audio signal, which
leads to higher overall sound quality. The smaller drivers and tweeters in select EF30
speaker system are video shielded to cancel any stray magnetic fields which may cause
interference with video equipment such as CRT televisions.
A high quality soft dome tweeter is used for high frequencies in the EF30 Series. Higher
power handling is achieved through the use of magnetic liquid cooling in the tweeter.
To protect the tweeter against being over driven, a Polyswitch (a DC current limiting
device) is incorporated in the crossover network. Each EF30 Series model features an
extensive crossover network. The use of these high quality crossover networks allows
each speaker to operate at its optimal performance. Steep acoustic crossover slopes
are used to integrate the drivers; the use of steep crossover slopes allow higher power
handling, minimizes driver interaction irregularities, and maximizes the ability of
each driver in their respective band of frequencies. Large 5-way binding posts ensure
a good, solid electrical connection to these crossover networks.
The EF Series cabinets are constructed of ¾-inch MDF because of its inert properties,
thereby preventing sound coloration due to cabinet diffraction. The thickness of the
front baffles also prevents excess acoustic radiation.
2
Break In Period
Allow several hours of listening time for your speakers to adequately break-in. During
this period, the driver suspensions will loosen, the result will be an increase in bass,
improved definition, and increased clarity and detail.
Care and Cleaning
To maintain the speaker’s high quality appearance, it is recommended you regularly
use a dry or slightly-damp soft cloth to keep the exterior of your speakers free from
dust, lint or dirt. To clean dust from the grille, use a vacuum with a brush attachment
and gently brush the surface of the grille.
