Electro-Voice AC-ONE-SYSTEMS User Manual

System Applications

AC One Audio Controller--Patented Engineering for Optimized Performance

The AC One Audio Controller includes a newly designed crossover function (patent pending) that
improves SPL around the crossover frequency. This makes it the ideal solution for systems with
relatively small full-range speakers plus subwoofers. And best of all, you don’t need an engineering
degree. Just trust your ears and be impressed by the acoustical result.

The highest requirements of modern audio applications can be met only by using active multi­component loudspeaker systems that can be amplified separately and that reproduce the audio
signal’s individual frequency ranges. Active 2-way installations with additional subwoofer systems
probably offer the best price/performance ratio. The subwoofers reproduce the low-frequency range
of the audio signal, while high-quality, full-range cabinets take care of the mid/hi frequencies and
vocals.

One essential advantage is that vocals are not divided between different speaker systems. This
makes the sound system easier to adjust. Opposite-to-active 3- or 4-way configurations, difficult
analysis, and measurement of sound fields become unnecessary.

Since low-frequency sound is nearly impossible to locate spatially, monaural subwoofers suffice for
smaller stages or rooms. On wider stages, individual subwoofer systems must be used for each
side. If they are not, the level differences between bass and treble audibly degrade the overall
sound. Of course, adding a centrally located subwoofer can also improve the sound quality.

The AC One Audio Controller was designed for use in high-performance installations that employ
active 2-way systems plus subwoofers. Such applications usually incorporate professional linear
power amplifiers like the EV P1200, P2000, P3000, Force, Eliminator or the new P1201 and P1202.
When a processor-controlled power amplifier like the EV P1250 is used, the processor section is
simply switched off.

Installing and operating the AC One Controller is easy as can be. The user does not need to know
any complex detail about crossover functions and equalization. All controls for matching the sound
to different acoustic conditions and loudspeakers are located on the front panel. Difficult tasks—­for instance, electronic signal routing and settings—-are automatically carried out inside the
controller. The PowerMax 12 crossover function makes optimal use of amplifier output power and
loudspeaker transmission capacities. When compared to conventional crossovers or controllers,
this results in improved overall sound quality achieved with less effort.

The AC One Audio Controller also works well in active 2-way instrument reinforcement applications
for keyboards, electric bass, and drums. The PowerMax 12 crossover function eliminates the often­complained-about "lack of punch and definition" common to conventional active musical
reinforcement systems.

The AC One Audio Controller’s excellent dynamic range of more than 117dB, its extremely low
noise level, and its outstanding price/performance ratio make it an excellent alternative to

conventional crossover and controller solutions, even in the critical field of permanent installation.

Ultra compact PA System up to 100 - 150 people

0 dB 50 Hz 3 dB* 0 dB* 4 dB* 100 Hz 0 dB* OFF 0 dB*

1 x AC One
2 x SX 80
2 x Sb 121
1 x P1250
1 x Psx600/Psx1000

SX 80

SX 80

Sb 121

From
Mixer

Amp In

Bridged Mono

i.e.: PSX 600 / PSX 1000

*adjust to
personal taste

Sb 121

System Applications

Small Club/Disco/Mobile DJ System up to 200 - 400 people

0 dB 40 Hz 6 dB* 0 dB* 2 dB* 100 Hz 0 dB OFF 0 dB*

1 x AC One
4 x SX 300
2 x T 18
1 x P1250
1 x P2000

From
Mixer

Amp In

SX 300 SX 300

SX 300SX 300

*adjust to
personal taste

T 18 T 18

System Applications

Medium Club/Disco/Mobile DJ System up to 400 - 600 people

0 dB 40 Hz 6 dB* 0 dB* 3 dB* 85 Hz 0 dB OFF 0 dB*

1 x AC One
2 x SX 500
2 x Sb 180
2 x P2000

From
Mixer

Amp In

*adjust to
personal taste

SX 500 + SX 500 +

Sb 180

Sb 180

System Applications

Medium Club/Disco/Mobile DJ System up to 400 - 600 people

0 dB 40 Hz 4 dB* 0 dB* 3 dB* 85 Hz 0 dB OFF 0 dB*

1 x AC One
2 x T 252+
2 x MTL-1
1 x P2000
1 x P3000

From
Mixer

Amp In

*adjust to
personal taste

T 252+

T252+

MTL-1

MTL-1

System Applications

System Applications

NOTES:

U.S.A. and Canada only.
For customer orders, contact the Customer Service department at

800/392-3497 Fax: [phone]
For warranty repair or service information, contact the Service

Repair department at 800/685-2606
For technical assistance, contact Technical Support at 877/863-4166

Please refer to the Engineering Data Sheet for warranty information.
Specifications subject to change without notice.

USA 12000 Portland Ave South, Burnsville, MN 55337, Phone: [phone], FAX: [phone]
Canada 705 Progress Avenue, Unit 46, Scarborough, Ontario, Canada, M1H2X1, Phone: [phone], FAX: [phone]
Switzerland Keltenstrasse 11, CH-2563 IPSACH, Switzerland, Phone: [phone], FAX: [phone]
Germany Hirschberger Ring 45, D94315, Straubing, Germany, Phone: [phone], Fax: [phone]
France Parc de Courcerin, Allee Lech Walesa, Lognes, 77185 Marne La Vallee, France, Phone: [phone], FAX: [phone]

Australia Unit 23, Block C, Slough Business Park, Slough Avenue, Silverwater, N.S.W. 2128, Australia, Phone: [phone], FAX: [phone]
Hong Kong Unit E & F, 21/F, Luk Hop Industrial Bldg., 8 Luk Hop St., San PO Kong, Kowloon, Hong Kong, Phone: [phone], FAX: [phone]
Japan 2-5-60 Izumi, Suginami-ku, Tokyo, Japan 168, Phone: [phone], FAX: [phone]
Singapore 3015A Ubi Rd 1, 05-10, Kampong Ubi Industrial Estate, Singapore 408705, Phone: [phone], FAX: [phone]

Mexico Av. Parque Chapultepec #66-201, Col. El. Parque Edo. Mex. 53390, Phone: [phone], FAX: [phone]
UK 4, The Willows Centre, Willow Lane, Mitcham, Surrey CR4 4NX, UK, Phone: [phone], FAX: [phone]
Africa, Mid-East 12000 Portland Ave South, Burnsville, MN 55337, Phone: [phone], FAX: [phone]
Latin America 12000 Portland Ave South, Burnsville, MN 55337, Phone: [phone], FAX: [phone]

©Telex Communications, Inc 2/2001 Part Number 20509