Buzz Audio tonic 3 User Manual

TONIC USERS MANUAL VERSION

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1, AUGUST

2007

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tonic

API™ 500 Series Compatible Equalizer Module

Users Manual

Thank you for choosing the Buzz Audio
Tonic Equalizer module. Please take the
time to read this manual so that you are
familiar with the operation of the unit.

To gain our Extended Warranty, please
return the enclosed Registration Card or
register your purchase online at
www.buzzaudio.com

Contents

1] Compatibility and Power ........................... 2

2] Installation ................................................. 3

3] Controls and Indicators ............................. 4

4] HPF Frequency Setup ................................. 7

5] Specifications ............................................ 8

6] Warranty and Service................................. 9

7] Recall Sheet ............................................. 11

PO BOX 6677, TE ARO. WELLINGTON, NEW ZEALAND. VOICE/FAX 64+4+385-2478.

www.buzzaudio.com email [e-mail]

CONTENTS COPYRIGHT BUZZ AUDIO LTD 2007.

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1] Compatibility and Power

The Tonic equalizer module is designed to be installed
into an API™ 500 Series compatible rack and cannot
function stand alone, requiring the power source
supplied by the rack system.

It should be noted that the Buzz Audio Tonic module
consumes more power supply current than most other
500 series modules available due to the True Class A
amplifiers used in the design. For this reason, there may
be limitations on how many Tonic modules can be
installed into some rack systems currently available.

The current consumption of the Tonic is rated at 120
milliamperes at +/-15 volts DC. If 10 modules are
installed into a rack, then a total of 1.2 amperes will be
required from the rack power supply. Please check with
the rack manufacturer that the design can meet this
rating. 10 Tonics can safely be fitted to the API™
500VPR rack.

For more information on the API™ 500 Series racks, visit
the API™ website at www.apiaudio.com.

2] Installation

After unpacking your Tonic module, please check for
any visible damage that may have occurred during
transit. If there is any problem, please contact your
dealer immediately for advice on what to do.

Before fitting into the rack, you may wish to set the HPF
turnover frequency jumpers to your choice, see section
4 of this manual.

Installation into the 500 Series rack is relatively straight
forward. Ensure the rack is completely powered down
before attempting installation to prevent damage to
the module.

Choose the position in the rack to which you will install
the module and slide it in so that the gold plated edge
connector of the module aligns with the matching
connector in the rack. A gentle push and the module
should slide home into the rack connector.

Attach the Tonic front panel to the front of the rack with
screws supplied by your rack manufacturer. This is
important for mechanical rigidity. Do not over tighten
these screws to avoid stripping out the threads.

Apply power, test that everything is working OK, and
most importantly, enjoy!

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3] Controls and Indicators

1

4

3

7

5

10

6

2

8

9

11

12

Controls and Indicators continued…

[1] HIGH This centre detented pot controls the amount

of boost and cut of the high (treble) band. The 12
o’clock “0” mark is flat response (no boost or cut
applied). +/- 15db range is provided.

[2] 11kHz - 5kHz This switch selects the centre frequency
of the high band filter section in bell mode, or the
frequency of maximum boost/cut in shelf mode.

[3] This switch selects the operating mode of
the high band section to shelving mode or bell mode
respectively.

[4] FREQ This pot adjusts the operating frequency of the
midrange filter section. It sweeps from 75Hz to 1500Hz
or 750Hz to 15kHz depending on the setting of the x1­x10 switch below.

[5] x1 - x10 This switch is used to multiply the midrange
freq control by a factor of ten, as above.

[6] This switch select the shape of the mid
range bands filter. It can be a tight bell shape or a
broad bell shape respectively.

[7] MID This pot controls the cut or boost amount of the
mid range filter section, with “0” being the flat position.
+/- 15db range is provided.

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Controls and Indicators continued…

[8] BYP – EQ IN This switch will bypass all the Tonic

equalizer sections when in the BYP position with the
audio input connected directly to the audio output via
a relay. To engage the Tonic equalizers, the switch
should be in the EQ IN position.

[9] This switch selects the high pass filter (HPF) in
and out of the Tonic signal path. The HPF is bypassed
when the switch is in the up position. The turnover
frequency of the HPF can be selected via jumpers on
the Tonic circuit board. See section 4 of this manual.

[10] LOW This centre detented pot controls the amount
of boost and cut of the low (bass) band. The 12 o’clock
“0” mark is flat response (no boost or cut applied). +/­15db range is provided.

[11] 120Hz - 60Hz This switch selects the centre
frequency of the low band filter section in bell mode, or
the frequency of maximum boost/cut in shelf mode.

[12] This switch selects the operating mode of
the low band section to shelving mode or bell mode
respectively.

4] High Pass Filter Frequency Adjustment

Facility is provided on the Tonic set the high pass filter
frequency to either 50Hz or 85Hz depending on your
preference.

Locate the little black HPF FREQ jumpers as shown in the
above picture on the Tonic upper circuit board. To
change frequency you need to move both jumpers to
the 50Hz of 85Hz positions.

The Tonic is supplied from the factory set to 50Hz. The
HPF will not operate correctly if the jumpers are not in
matching positions or are missing.

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5] Specifications

Maximum Input Level +23dBu
Maximum Output Level +26dBu into 3k ohm load.

Frequency Response EQ set flat

17Hz to 175kHz (+1dB, -3dB).

Harmonic Distortion Measured +10dBu output level

0.08% @ 100Hz, 0.02% @ 1kHz, 0.005% @ 10kHz

Signal to Noise Ratio

-88dB A wtg, input shorted.

Input Impedance

20k ohms approx balanced

Indicators

Single LED overload indicator at +20dBu.

Size
(1.5”Wx5.25”H). Fits 1 slot in API™ 500VPR Series rack

Power requirements = 120mA +/- 15-18 volts DC as
supplied by rack power supply.

Specifications are typical of a production unit and are subject to
change without notice because we might be able to make it slightly
better. 0dBu reference = 0.775 volts RMS.

6] Warranty and Service

We are confident that you will receive many years of
trouble free operation from your unit. If however you
experience any technical problem with your Tonic
equalizer, contact your dealer or Buzz Audio for
recommendations on what to do.

For on line support visit our web site;
www.buzzaudio.com and click on Users Area

Buzz Audio, 42b Hania St, PO Box 6677, Te Aro,
Wellington, New Zealand.
Voice/Fax 64+4+385-2478.
Email; [e-mail]

•Disclaimer

Buzz Audio is not liable for any damage to
microphones, amplifiers, consoles, speakers or any
other equipment and/or electric shock to humans that is
caused by negligence or improper installation and/or
use of the Tonic Equaliser module.

•Standard Product Warranty

Buzz Audio guarantees the Tonic to be free of defective
materials and/or workmanship for a period of 1 year (12
months) from the date of sale, and will replace

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Warranty and Service continued…

TONIC USERS MANUAL VERSION

-

1, AUGUST

2007

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defective parts and repair malfunctioning products
under this warranty when the defect occurs under
normal installation and use – provided the unit is
returned to our factory (or duly authorised service
centre) via prepaid transportation with a copy of the
proof of purchase, ie, sales receipt. This warranty
provides that examination of the returned product must
indicate, in our judgement, a manufacturing defect.
This warranty does not extend to any product that has
been subjected to misuse, neglect, accident, improper
installation, or where the date code has been removed
or defaced. The standard warranty is NOT transferable.

•Product Warranty Extension

The above Warranty may be extended to a period of 2
years (24 months) from date of sale provided the
enclosed Warranty Registration card is completed and
returned to the office of Buzz Audio within 4 weeks (28
days) from purchase date. Alternatively, you may
Register your purchase on-line at our web-site
www.buzzaudio.com. The Extended Warranty is
transferable to the new owner if you on sell the unit
during the warranty period.

www.buzzaudio.com email [e-mail]

CONTENTS COPYRIGHT BUZZ AUDIO LTD 2007.

PO BOX 6677, TE ARO. WELLINGTON, NEW ZEALAND.

VOICE/FAX 64+4+385-2478.

Artist……………………… Artist…………………......

Source………………….. Source…………………..

Date…………………….. Date……………………..

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