Peavey Freq-Out User manual

Freq-Out™24-Bit ProcessorSpecifications
SSPPEECCIIFFIICCAATTIIOONNSS
MMEECCHHAANNIICCAALL
DDiimmeennssiioonnss::
(H x W x D) 1.75” x 1 ” x ”
(4.4 cm x 48.3 cm x 22. cm)
WWeeiigghhtt::
7.1 lbs. (3. 5 kg)
MMoouunnttiinngg::
One EIA rack space
CCoonnnneeccttiioonnss::
Balanced combo female XLR/female
1/4” TRS for input
Separate balanced male XLR and
female 1/4” TRS for output
RS-232 DB- for PC interface
PPEERRFFOORRMMAANNCCEE
SSaammppllee RRaattee::
48 kHz
CCoonnvveerrtteerrss::
24- bit
FFrreeqquueennccyy RReessppoonnssee::
+/- 0.5 dB
(20 Hz to 20 kHz, ref. 1 kHz)
SSiiggnnaall--ttoo--NNooiissee::
Greater than 105 dB (typical)
TToottaall HHaarrmmoonniicc DDiissttoorrttiioonn ++ NNooiissee::
Less than 0.005% (typical)
IInnppuutt IImmppeeddaannccee::
40 k Ohms
OOuuttppuutt IImmppeeddaannccee::
120 Ohms
FFEEAATTUURREESS
• 16 available feedback filters
(eight dynamic, eight static)
• 1/12 octave filter bandwidth
• 30 dB maximum filter depth
• lnput sensitivity selectable
between -10 dBV and +4 dBV
(+4 dBu and +18 dBu)
• Output level selectable between
-10 dBV and +4 dBV (+4 dBu and
+18 dBu)
• Signal presence and clip LEDs
• Four filter configuration presets
• System bypass control
• “Wide” control (increases filter
width and depth)
• “Panic” filters to control sudden,
extreme feedback
• LED indicators for active notch
filters
DDEESSCCRRIIPPTTIIOONN
The Freq-Out™is basically a very
sophisticated filter set. It includes
sixteen notch filters configured for
1/12 octave performance in normal
operation. The filters operate using

Freq-Out™24-Bit ProcessorSpecifications
“seek & destroy” algorithms to
find, lock in on, and reduce
offending frequencies. The reduc-
tion of the offending frequency is
minimal, using only enough
attenuation to contain the feed-
back without affecting tonal qual-
ity. The attenuation happens very
quickly and is difficult to even
notice that it is taking place.
Essentially, what happens is
this. When the Freq-Out locates
an offending frequency, it applies
a notch filter, beginning with fil-
ter number 16. This filter is cen-
tered at the feedback frequency
with an attenuation of
-3 dB. Then, if the feedback con-
tinues, the filter depth is progres-
sively increased until the feed-
back is gone, or maximum atten-
uation is reached. If the feedback
is momentary, such as a short
squeal, the filter will release in .1
dB steps until the feedback re-
occurs, or the filter is returned to
flat (0 dB) response. Once
returned to flat, it is then avail-
able for further use. If the filter
depth is continually increased at
the same frequency, the filter will
become “locked” at the offend-
ing frequency until the unit is
reset. As feedback occurs at dif-
ferent frequencies, the process
continues as additional filters are
engaged. Monitoring continues
as the Freq-Out attempts to
release each filter a tenth of a dB
at a time.The unit maintains a
constant vigil in search of feed-
back frequencies and applies
only enough attenuation to elimi-
nate the feedback, no more ... no
less.
AARRCCHHIITTEECCTTUURRAALL AANNDD
EENNGGIINNEEEERRIINNGG SSPPEECCIIFFIICCAATTIIOONNSS
The Peavey Freq-Out™shall be a
digital feedback eliminator sys-
tem. It shall provide balanced
input via a combo female
XLR/female 1/4" TRS connector,
and balanced output via separate
male XLR and 1/4" TRS connec-
tors. A RS-232 DB- connection
shall be provided for PC inter-
face. Input sensitivity and output
level shall be switchable between
-10 dBV and +4 dBV (+4 dBu and
+18 dBu). Input impedance shall
be 40 k Ohms, and output imped-
ance shall be 120 Ohms.
The Freq-Out shall provide a
48 kHz sample rate and utilize
24-bit converters. It shall have a
frequency response of +/- 0.5 dB
or better from 20 Hz to 20 kHz
referenced at 1 kHz. Signal-to-
noise ratio (S/N) shall be greater
than 105 dB (typical), and total
harmonic distortion + noise
(THD/N) shall be less than
0.005% (typical).
The Freq-Out shall provide 16
available feedback filters (8
dynamic, 8 static). Filter band-
width shall be 1/12 octave and
maximum filter depth shall be 30
dB.
The unit shall be 1 " (48.3 cm)
wide x 1.75" (4.4 cm) high x "
(22. cm) deep and weigh 7.1 lbs.
(3. 5 kg). It shall be rack-mount-
able with an EIA standard of one
unit. The system shall be the
Peavey Freq-Out.
WWAARRRRAANNTTYY
THREE + TWO LIMITED WARRANTY
NOTE: For details, refer to the
warranty statement. Copies of this
statement may be obtained by
contacting Peavey Electronics
Corporation, P.O. Box 28 8,
Meridian, Mississippi 3 302-28 8.
Peavey Electronics Corporation • 711 A Street • Meridian, MS 3 301
601-483-5376 • Fax [phone] • http://aa.peavey.com
©2001 Printed in USA 4/02
Specifications are subject to change without notice.
80302019