ELTA music POLYVOX PF3 User manual

MANUAL

FREQ
CONTROL
LINK
FREQ SOFT
HARD
FILTER 1 - MAIN
FILTER 1 - MAIN
FILTER 2
FILTER 2
NOISE
IN1 and IN2 -this is an audio input of the filter. To operate in stereo or dual mono mode plug in stereo of 2 mono signals
here. If you plug just the IN1 and OUT 2 two filters are conneccted in series. If you plug input 1 and 2 and outputs 1 and
2 two filters work in stereo (parallel mode). POWER ON - switches on/off the unit. POWER SUPPLY- use 12VDC
adapter 0,5 - 1 A (center positive)
CV -you can control/automate filter cutoff
via CV using CV in. Led indicator mirrors the amount
of voltage in the input jack.
CV potentiometer attenuates CV applied to the filter
cutoff frequency.
CUTOFF - manual filter cutoff frequency
RESONANCE - Filter resonance (boost the
frequency near cutoff point)
MODE- Filter mode switch
LP - low pass
BP - band pass
HP - high pass
N- notch filter
LEVEL - controls the output level of filtered signal to
balance the volume.
DRY/WET - blends dry and filtered signals
CV in - connect control voltage standart mono minijack from
eurorack system
LINK CV - when switched on links CV on filter 1 to control
both filters 1 and 2
LINK FREQ - when switched on links FREQ CONTROL on
filter 1 to control both filters 1 and 2
There is a noise generator built in the filter. It can blend
noise to the audio signal
PINK/WHITE - switch two types of noise
LEVEL - controls the level of noise generator.
BALANCE - adjusts amount of noise signal going to filter 1
and 2
FREQ
CONTROL
NOISE
CONTROLS

Low Pass Band Pass Hi Pass Notch
FILTER MODES
POLYVOX PF3 double-stereo filter utilizes the classic Soviet filter chip for a unique and iconic filter tone.
This filter will make your sound dirty and angry. With the resonance turned up, you won't lose bass frequencies.
Two independent 12dB multi-mode filters that can be controlled by a single cutoff knob. Turning the filter into a
24dB filter, when connected in series. When connected in stereo, you can achieve interesting effects by using
different modes to each channel. A noise generator is on board pre-filter and can be used separately as a source
of white and pink noise. There are two types of noise - white and pink. You can choose the type of noise via
WHITE/PINK switch. Adjust the volume and balance of the noise using the LEVEL and BALANCE pots in the
noise section. Volume as well as clean and processed signal balance per channel. Can be used as two independent
filters or stereo mode. FILTER modes - Lowpass, Bandpass, Hi-pass, Notch. HARD/SOFT switch lets you
choosse the character of the filter. The more resonance, more difference you can hear between hard and soft
mode. HARD mode is a classic POLYVOX filter mode, SOFT mode takes the dirt and impertinence out of the
sound. This mode used in MAESTRO synthesizer. Note: The SOFT mode shifts the filter slope slightly, it sort
of opens up. This is normal. You can use filter in three modes. When audio signal passes through the filter,
it is partially cuts some frequency content. There are four modes in this filter.
Low pass - removes frequency content above the cutoff frequency
High pass - removes frequency content below the cutoff frequency
Band pass - removes frequency content above and below the cutoff frequency
Notch - removes frequency content at the cutoff frequency
DESCRIPTION
To adjust cutoff frequency, use the FREQ control. To boost the volume near the cutoff frequensy turn the
RESONANCE control clockwise. LEVEL control adjust the level of the filtered signal. WET/DRY control blends
direct and filtered signals in any proportion. For remote control of the cutof frequency, use the CV input jack
and the CV potentiometer to control amount of CV to cutoff. Led indicator near the CV jack mirrors the
control voltage applied to CV input. Polivoks PF-3 has two separate filters onboard. To control cutoff of both
filters with the filter 1 cutoff pot and CV, switch on the link switch in the middle of the control panel.
WARNING
Before using the device, turn it on for 5-7 minutes and let it stand. The control
transistor should warm up. So that in SOFT mode there is no feedback when the FREQ
knobs are in zero position. If you overdo it.
The UD1208 chips used in the filter are very sensitive and are never the same.
Therefore you will not mathematically get two identical filters. Which is an advantage
when using the unit in stereo.

WARRANTY
Dear customer!
Thank you very much for purchasing our products and thereby supporting ELTA music. With this
fact we feel our necessity in the market of electronic instruments.
ARSENIY TOKAREV, ELTA MUSIC SIA
24 month warranty. The manufacturer is not responsible for the consequences resulting from the use of
Stereo Folter PF3 Polivox, the documentation, and any parts related to the device. Everything the user does
with thedevice, he does at his own risk and for his own pleasure. The manufacturer is not responsible for
the use of a third-party power adapter not included in the kit. In case of failure of the device, such
situations are not warranty. Please follow the instructions for use of the ELTA music POLYVOX PF3 below,
cause only this will guarantee proper operation of the module and ensure warranty from ELTA music.
You will find ELTA music terms of warranty at www.eltamusic.com or via e-mail [email protected]
Items for return, exchange and/or warranty repair have to be sent to:
ELTA MUSIC SIA, Ropazu Str. 140, Riga, Latvia, LV-1006
POLYVOX PF3 team
Idea, production: Arseniy Tokarev, Vladimir Kuzmin
Design: Arseniy Tokarev
Enclosure construction: Grigoriy Ryazanov
PCB development, engineering: Alexander Grygoriev
User manual: Arseniy Tokarev
The manufacturer reserves the right to change the appearance, equipment and design of the product.
Input audio signal level
Modulation CV lnput - 5 to +5 V or 0 to +10V
Power supply: universal mains adapter 100-220V /12V 1A out
Filter weigth
Packed weigth
0,7 kg
1 kg
Dimensions 175x135x50mm
max 2 V

Water is lethal for most of the electric devices, unless they are made waterproof. ELTA music POLYVOX PF3
is NOT intended for use in a humid or wet environment. No liquids or other conducting substances must
get into the module. Should this happen, the POLYVOX PF3 should be disconnected from mains power
immediately, dried, examined and cleaned by a qualified technician.
Although the module has rigid steel case, so you technically can stand on it, itʼs not recommended to place
objects heavier than 10 kg on the top of the instrument.
Transport the instrument carefully, never let it drop or fall over. Warranty does not apply to POLYVOX PF3
with visual damages.
Due to solid build and mass of 0,5kg, you can use POLYVOX PF3 for self-defense, but two year warrantee
applies only to the instruments that are used for the purpose described in this user manual.
This device complies with EU directives and is manufactured in accordance with RoHS without the use of
lead, mercury, cadmium and chromium. Nevertheless, this device is a special waste and it is not
recommended to dispose of it in household waste.
The POLYVOX PF3 has to be shipped in the original packaging only. Any module shipped to us for return,
exchange and/or warranty repair has to be in its original packaging. All other deliveries will be rejected and
returned to you. Make sure you keep the original packaging and technical documentation. In case of a
destroyed warranty seal, any warranty claim will be rejected.
Do not expose the midi through box to temperatures above +50° C or below -20° C.
SAFETY INSTRUCTION

RIGA, LATVIA