Electro-Voice Phoenix User manual

In 1985 EV introduced the MT series to
address the needs of concert sound profes-
sionals looking for high SPL capabilities,
reduced distortion and constant coverage
using smaller enclosures. MT series achieved
these goals by utilizing revolutionary Manifold
Technology that employed multiple drivers on
a single horn. Not long after its introduction,
major sound companies deployed large MT
series systems for the world’s top tours, ush-
ering in a new paradigm in sound reinforce-
ment. Unique products included the quad
18-inch MTL-4 subwoofer and the MTH-4 with
four 10-inch woofers, four 2-inch compression
drivers and four 1.25-inch compression driv-
ers, all in a single enclosure. MT series was
quickly embraced as the worldwide standard.
As line arrays came into vogue and manufac-
turers put more resources into their design,
the market for loud, ground stacked systems
with flying capabilities was neglected. As a
customer-driven company offering complete
application-specific solutions, EV recognized
the need to fill the void created by line array.
Phoenix, with second generation Manifold
Technology and all-new DVX woofer design,
specifically addresses the needs of custom-
ers in this market. From regional PA com-
panies to high-end concert touring, Phoenix
provides medium and long-throw solutions
for applications including festivals, clubs and
outdoor events—anywhere high SPL non-line
array systems are required.
Phoenix is the rebirth
of patented Electro-Voice Manifold Technology.

Electro-Voice® Manifold Technology
Unique to all Phoenix high-mid systems and monitors is patented Electro-Voice
Manifold Technology. Borrowing from the innovations of the original MT series, yet
employing the most advanced Electro-Voice technology, Phoenix manifolds boast
major advantages over single compression driver designs. More drivers means
higher power handling capacity and more SPL per horn, allowing the use of less
overall cabinets for the same output. Dual drivers offer the benefit of tremendous
headroom in the mid and high frequencies letting you confidently push that vocal
up and over the top of a dense mix or high stage volumes. Additionally, dual driv-
ers don’t have to work as hard as a single driver which results in less heat build
up in each driver and provides reliable roadworthy longevity. In the rare event one
driver fails, the integral redundancy of a dual driver system offers peace of mind
that the show will go on.

Snapshots of Dynamic FEA for a high
power signal (100V) for a conventional design (top)
versus DVX (bottom). The changing colors in the gap
indicate an extreme variation of the magnetic flux for the
conventional design, while there is only slight variation
with DVX. The result is a more even travel of the DVX
voice coil, significantly reducing harmonic distortion.

Electro-Voice®DVX®Transducer Technology
EV is known globally as a pioneer and leader in transducer designs for professional loudspeaker
systems. The result of an ongoing multi-million dollar R&D project, EV’s groundbreaking DVX woof-
er series sets a new benchmark for performance, high SPL output and low distortion. DVX motor
structure and suspension is optimized for very linear movement using state-of-the-art development
tools, such as computer simulation software for dynamic finite element analysis (Dynamic FEA).
In conventional woofer designs, high power signals with peaks up to and beyond 100V create a
wide variation in the magnetic field, disturbing the linear movement of the voice coil and resulting in
audible distortion. Unique DVX motor geometry greatly reduces these changes in magnetic flux,
reducing harmonic distortion up to 20dB.
DVX frames are designed with integrated Forced Air Voice Coil Cooling™. The movement of cone
and voice coil forces air inside the woofer, taking heat away from the voice coil and exhausting it
thorough the pole plate. This results in drastically cooler operation and reduced power compres-
sion, so DVX can provide continuously higher output. The asymmetric suspension of DVX provides
a perfectly harmonic system that eliminates typical loudspeaker resonances that can cause audible
sound coloration. This process of Ring-Mode Decoupling (RMD) reaches back to the late 90’s and is
already integrated in DVX. Computer modeled die cast frames are optimized to be rugged and light-
weight, while specially cold forged magnets provide higher sensitivity and additional weight savings.
Offering an unprecedented level of sonic clarity, dynamic capability, very high output and long-term
endurance and reliability, the amazing performance of DVX woofers needs to be heard to be believed.
Combined with the output potential of manifold technology , DVX is the base for the outstanding
acoustical performance of Phoenix.
With every excursion, cool air is drawn through the
voice coil, removing heat. This significantly reduces power
compression, resulting in higher long-term SPL.

Intended for situations where very high SPL
and maximum throw are desired, the PX2122 packs tremendous horsepower. Dual ND2 com-
pression drivers are precisely summed in a manifold configuration for increased power handling,
maximum high and mid frequency headroom, and lower distortion. Designed to reproduce the
frequency range above 80 Hz, the PX2122 works perfectly with the PX2181 subwoofer.
The tight coverage of the low distortion 45° x 30° rotate-able horn gives the PX2122 excellent
array characteristics. An integral 15° per side trapezoidal design allows arraying up to three wide,
with a recommended minimum of two per side. In an effort to simplify setup, PX2122 cabinets can
be securely splayed within the safety grooves routed into the PX2181 subwoofer, reducing the
need for straps and eliminating speaker cluster guesswork.
Dual high-efficiency, forced-air cooled DVX3121 12-inch woofers compliment the high perfor-
mance manifold section of the PX2122. With an overall broadband sensitivity of 102dB and “bi-
amp only” architecture, the PX2122 is ready to be utilized to its maximum high power potential.
The PX2122 employs rugged EVCOAT® covering and 18-mm, 13-ply plywood with complex
tongue-in-groove construction for long-term strength and consistency. Handles on the top, bottom
and both sides make transport easy, while eight M10 points provide flexibility in situations where
hanging is either necessary or optimal.
accessory:
Optional PX-D1 wheel kit for PX2122 and PX2152 rotates to a horizontal position for rolling and a vertical position
when forming arrays, eliminating the need to remove and store the PX-D1 during use.