Amate Audio Nitid S12WP User manual

User’s manual
December 2022

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Safety Instructions
1. All safety instructions must be read before using this device.
2. Keep and follow these instructions
3. Heed all warnings
4. The exclamation mark in the triangle indicates internal components which if
replaced can affect safety.
5. The lightning symbol within the triangle indicates the presence of dangerous
uninsulated voltages.
6. Only clean the device with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with the
manufacturer’s instructions.
8. Do not install the device near heat sources such as radiators, heaters or other
heat-emitting elements.
9. Protect the power cord from being walked on or pinched, particularly at plugs,
convenience receptacles, and the point where they exit from the apparatus
10. The equipment must be repaired by qualified technical service personnel when:
A. The mains supply cable is damaged, or
B. Any object or liquid has damaged the device; or
C. The equipment does not function normally or correctly; or
D. The equipment has been exposed to the rain; or
E. The chassis is damaged
11. Disconnect the device in the case of electric storms or during long periods of
disuse.
12. WARNING – To reduce the risk of fire or electric shock, do not expose this
device to rain or moisture
13. The equipment shall not be exposed to dripping or splashing and no objects filled
with liquids, such as vases, shall be placed on the device.
14. For hanging and installation, use manufacturer recommended accessories only.

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1. INTRODUCTION
1.1. General
Amate Audio would like to thank you for your confidence in our NÍTID Series. We
suggest you to carefully read the following instructions in order to obtain the best
results in performance.
1.2. Features and presentation
S12WP
 Passive subwoofer
 NL4MP Speakon input & parallel output
 1000 W program power
 Sensitivity 1 W / 1 m: 96 dB
 12” woofer with 3” voice coil
 Nominal impedance 8Ω
2. CONNECTIONS
2.1. Connection description
A) SPEAKON: The S12WP uses two NL4MP Speakon terminals
and is duly prepared for a perfect connection in a parallel system.
Terminal Pins +1/-1 must be always used, disregarding the +2/-2
which are not internally connected. Respect always the polarity +/-.
Fig. 1. S12WP connectors
It is strongly recommended to use a two-conductor high quality wire, non-
shielded and two-coloured. We recommend using a minimum section of 4
mm2 for each conductor. Avoid long wire distances as they induce to
important power and quality losses.
A
A

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2.2. Recommended set-up for S12WP passive subwoofer
One unit of HD3200 (in stereo mode) can feed up to four units of S12WP.
Fig. 2. S12WP configuration
2.3. Recommended presets for S12WP
The S12WP can be used with an external LMS206 /LMS608 (digital signal
processor).
ATTENTION: When the S12WP is used in conjunction with the Full-range NÍTID S
systems in XOVER HPF90 preset, the S12WP must operate in positive polarity.
When the S12WP is used in conjunction with the Full-range NÍTID S systems in
FLAT, SPEECH, MONITOR presets, the S12WP must operate in negative polarity.
Model
LMS206 / LMS608
Model
S12WP
Impedance
8Ω
Model
S12WP
Impedance
8Ω
Model
S12WP
Impedance
8Ω
Model
S12WP
Impedance
8Ω
Model
HD3200
Mode
Stereo Stereo
Impedance
8Ω 4Ω
Program power
1000W 1750W

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LPF80
80 Hz low pass filter
LPF90
90 Hz low pass filter
LPF100
100 Hz low pass filter
S-ALIGNED
90 Hz low pass filter + 2.8ms
delay for coupling with NÍTID
S (S26P, S10P, S12P)

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CARD80/90/100/S-ALIGNED
Cardioid polar pattern, with processing, delay and inverse polarity
Fig. 3. Recommended PRESETS for S12WP
3. MOUNTING AND PLACEMENT
For a proper installation of the acoustic cabinet systems, it is strongly recommended
to carefully read the following advices.
3.1. S12WP with full-range systems
The S12WP incorporates a M20 base-plate on its upper side for the attachment of a
standard 35mm diameter bar.
Fig. 4. S12WP socket
4. CARDIOID SUBWOOFERS
The S12WP enables the combination of three or
multiple of three subwoofer cabinets in an array to
provide exceptional directivity at low frequencies.
To get the correct set-up parameters, please
contact expo[email protected]. High directivity
at low frequencies has two main effects on the
sound field: firstly, the low frequency level behind
the subwoofer cabinets is greatly reduced;
secondly, in closed venues the diffuse sound field
at low frequencies is reduced so the low frequency
reproduction is much more precise.
Fig. 5. Traditional polar pattern of a subwoofer at 40Hz

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The typical operating range of a traditional subwoofer tends to be like a monopole,
i.e. tends to radiate with the same energy in all directions. This behaviour implies
that the control of radiation at low frequencies is very difficult because the
wavelengths are very large compared to the size of the source (8.5 m at 40Hz).
To increase the directivity at low frequencies we
must transform the omnidirectional performance
into a cardioid performance. This can only be
achieved by various sources, arranged in a
certain position, to which we apply a specific
phase, filtering and delay. That is, we need to
reproduce two signals with the same frequency
and similar amplitude which will have a difference
in phase of approximately 180º at a certain point
of the sound field. If the phases and delays are
well calculated, the result is a system, in which
we cancel the energy of the back and not the one
of the front.
Fig. 6. Cardioid pattern
4.1. The CARDIOID presets
The S12WP can generate an uncompromised cardioid behaviour when used in
conjunction with an external Amate Audio processor and their correct set-up
parameters. In its minimum and standard configuration a Cardioid setup consists of a
stack of three subwoofer cabinets.
Only one subwoofer is needed to compensate for the energy of the other two
radiating to the front. Then, the cabinet facing to the back (to the stage) should be
located in the centre of the column.
Fig. 7. Cardioid configuration for S12WP subwoofer

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The cardioid preset must only be applied to the rear facing
subwoofers (BACK STAGE). The front facing subwoofers (FRONT
AUDIENCE) must use the corresponding front-facing preset, as
shown in the table below:
S12W
P
Preset
(BACK
STAGE)
S12W
P
Preset
(FRONT
AUDIENCE)
Box model
CARD80
STANDARD
LPF80 STANDARD Generic, HPF 80 Hz
CARD90
STANDARD
LPF90 STANDARD Generic, HPF 90 Hz
CARD100
STANDARD
LPF100
STANDARD
Generic, HPF 100 Hz
CARD
S-ALIGNED
S-ALIGNED S26P / S10P / S12P, HPF90 Hz
Fig. 8. Correspondence of rear and front presets for cardioid applications
IMPORTANT NOTE: Due to the internal set-up of the cardioid presets, the
threshold level (limiter) of the back facing subwoofers must be reduced by -4
dB when using stacks of three subwoofers.
[FRONT PRESET]
[BACK PRESET]
[THRESHOLD -4dB]
[FRONT PRESET]
Fig. 9. Cardioid presets for S12WP subwoofers (3 units)
When placing the subwoofers in a cardioid configuration keep a distance to walls of at
least 60 cm in order not to affect the radiation of the central reversed cabinet.

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5. TECHNICAL FEATURES
S12W
P
Impedance
Nominal 8 Ω
Power
R.m.s 500 W
Program 1000 W
Connectors 2 x Speakon NL4MP input & link
Audio Performance
Frequency response
(-10 dB usable bandwidth)
with external DSP
38 Hz – 130 Hz
SPL (1W / 1m) 96 dB
Nominal directivity (-6dB) Omnidirectional
Components
LF 1 x 12” woofer (3” voice coil)
Cabinet
Type Bass-reflex
Height 384 mm
Width 520 mm
Depth 582 mm
Weight (net) 24.9 Kg
Material Multilayer birch plywood
Finish Hi-resistance black matt Polyurea coating.
1.5 mm steel front grilles with black acoustic mesh.
Note: Specifications subjected to change without prior notice.

The NÍTID loudspeaker systems have been designed,
engineered and manufactured in Barcelona – SPAIN
by
Amate Audio S.L.
Perpinyà, 25 · Polígon Industrial Nord · 08226 Terrassa
T. [phone] – F. [phone] –
[email protected]
R&D and FACTORY:
Violinista Vellsolà, 18 · 08222 Terrassa
T. [phone] – F. [phone]
Barcelona – SPAIN
www.amateaudio.com
© Copyright 2022 by Amate Audio S.L.