V201609
HFA115s/HFA115sHP
ACTIVE Reflex Subwoofer
USER MANUAL
NEXT HFA115s/HFA115sHP - User Manual
www.next-proaudio.com
CONTENTS
INTRODUCTION - 1 -
UNPACKING - 1 -
HFA SUBWOOFER SERIES OVERVIEW - 1 -
SAFETY FIRST - 2 -
HFA115s APPLICATIONS - 3 -
HFA115s(HP) POWER AMPLIFIER AND DSP - 4 -
TECHNICAL SPECIFICATIONS - 5 -
WARRANTY - 7 -
CONTACTS - 8 -
NEXT HFA115s/HFA115sHP - User Manual
www.next-proaudio.com
- 1 -
INTRODUCTION
Thank you for purchasing a NEXT-proaudio HFA115s(HP) ACTIVE Reflex Subwoofer. This
manual will provide you with useful and important information about your HFA115s element. Please
devote some time reading this manual, and keep it at hand for future reference. NEXT-proaudio is
concerned with your safety and well-being, so please follow all instructions and heed all warnings.
Also, a better understanding of some specific features of the HFA Series systems will help you to
operate them to their full potential. With a continuous evolution of techniques and standards, NEXTproaudio, reserves the right to change the specifications of its products without early warning. For the
most current data, please visit our website: www.next-proaudio.com
UNPACKING
NEXT-proaudio HFA Series systems are built in Europe (Portugal) by NEXT-proaudio, according
to the highest standards and thoroughly inspected before they leave the factory. When unpacking
your HFA115s, examine it carefully for any signs of possible transit damage and inform your dealer
immediately if any such damage has occurred.
It is suggested that you retain the original packaging so that the HFA115s can be repacked in
the future if necessary. Please note that NEXT-proaudio and its authorized distributors cannot accept
any responsibility for damage to any returned product through the use of non-approved packaging.
HFA SUBWOOFER SERIES OVERVIEW
The HFA speaker series are fully powered PA systems, designed to deliver high output and
dynamics, extreme linearity and fidelity for unrivalled performance at a very competitive price.
Entirely manufactured in Portugal, the HFA speaker series uses superb quality custom made
components, loading birch plywood enclosures coated by a scratch resistant textured paint to assure
an outstanding performance and durability.
The integration with the new DPAmplifier modules with up to 2200 Wrms, and the advanced
digital signal processing, set a new standard for distortion, noise and thermal efficiency. A surprisingly
simple handling concept lets you plug in and play straight away. Configure the system by selecting
the right preset and let the system do the rest.
The HFA112s, HFA115s and HFA118s have the ability to power an external passive satellite
up to 550Wrms keeping 1100Wrms for its own power. The HFA118sHP and HFA115sHP do not have
the ability to power an external passive satellite but are able to handle up to 2200 Wrms of power.
NEXT HFA115s/HFA115sHP - User Manual
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V201609
SAFETY FIRST
Please pay close attention to this chapter. Failure to comply with these instructions may
result on injury or death.
NEXT HFA Series systems are capable of producing extremely high sound
pressure levels and should be used with care. Hearing loss is cumulative
and can result from levels above 90dB if people are exposed for a long
period. Never stand close to loudspeakers driven at high levels.
DANGER – HEARING DAMAGE
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER
NO USER SERVICEABLE PARTS INSIDE
REFER SERVICE TO QUALIFIED PERSONNEL
NEXT HFA115s/HFA115sHP - User Manual
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• Do not use your HFA115s near any sources of water, like swimming pools, lakes, water streams,
exposed to rain, high humidity environments or any other source of water or moisture.
• Use only a soft dry cloth to clean your HFA115s.
• Never place your HFA115s in a way that prevents air flow near the amplifier. A minimum
clearance distance of 6cm should be kept between the amplifier and any near surface.
• Never use your HFA115s too close to any heat source, such as radiators, or any other device
that produces heat.
• Place cables in a way that they do not present a trip hazard.
• Do not place any objects on top of the stack, they can fall accidentally and cause injuries.
• Do not attempt to move the enclosures while connected.
• Do not attempt to service the HFA115s beyond what is described in this manual. All other service
or repair of this product should be carried only by qualified personnel.
• To prevent electric shock, do not use any extension cord, receptacle or other outlets where the
blades of the connectors cannot be fully inserted.
• Precautions should be taken to prevent grounding failure or polarity switch.
• It is advised to unplug the HFA115s during storms or when not in use for a long period of time.
HFA115s APPLICATIONS
In addition to the normal possible settings with all HFA range products, HFA115s subwoofer
also allows a use with other NEXT-proaudio’s series speakers such as K12 or K12A from KUBIX series.
By simply laying the speaker on the top of the subwoofer it will automatically set a 15º angle that
perfectly aligns the listener ears with the centre of the sound source for the best listening experience.
Recommended as DJ monitoring or drum fill.
NEXT HFA115s/HFA115sHP - User Manual
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V201609
HFA115s(HP) POWER AMPLIFIER AND DSP
The HFA115s as all HFA series models, was designed
to achieve a simple to use and deploy versatile system.
The amplifier is designed to power not only the HFA115s
itself, but also any passive satellite or group of satellites,
as long as the minimum total impedance doesn’t reach
below 4Ω. The HFA115s, like all HFA series models, is
prepared to be completely plug n’ play, having already
six pre-determined configurations that cover almost all
situations. But if you’re not happy with any of those,
there are also two available user defined configurations,
which can be used to adapt the system to your needs
using the NEXT-proaudio SOUNDWARE1 software and
the supplied RS485 to USB converter.
Here is a brief description of the amplifier panel:
1- Signal Input/Output
2- Level Adjustment Potentiometer
3- Preset Selector
4- RS485 Communication Interface
5- List of Available Presets
6- Satellite Output (ONLY on HFA115s)
7- AC Mains Power Input/Output
8- Protection Circuit Breaker
9- Power On/Off Switch
1
Download NEXT-proaudio SOUNDWARE at www.next-proaudio.com/downloads
1 2 3
4
6 9 5 7 8
Never operate the HFA Series speakers
in a way that maintains the Limiter Led
consistently on.
HFA115s Preset List:
0- Deep (LP80Hz): Low-pass filter at 80Hz 24dB/Oct Linkwitz-Riley
1- Punch (LP100Hz): Low-pass filter at 100Hz 24dB/Oct Linkwitz-Riley
2- Extended (LP120Hz): Low-pass filter at 120Hz 24dB/Oct Linkwitz-Riley
3- No LP: No Low-pass filter used (can be defined by user)
4- Sub+Satellite (Flat): Flat frequency response with the satellite designated on “Programmed Satellite” label
5- Sub+Satellite (Music): Frequency response adapted for music reproduction with the satellite designated on
“Programmed Satellite” label (Ear compensation, due to high SPL levels, at the mid-high frequency range)
6 / 7- User Defined: Free memory for user storage (OUTPUT is muted by default)
NEXT HFA115s/HFA115sHP - User Manual
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HFA115sHP Preset List:
0- LP-80Hz: Low-pass filter at 80Hz 24dB/Oct Linkwitz-Riley
1- LP-100Hz: Low-pass filter at 100Hz 24dB/Oct Linkwitz-Riley (It can also be used on a cardioid configuration
on the
front-facing HFA115sHP subwoofer
2- LP-100Hz Cardioid: It must be used on a cardioid arrangement on the rear-facing HFA115sHP subwoofer
(no other adjustments needed)
3- LP-120Hz: Low-pass filter at 120Hz 24dB/Oct Linkwitz-Riley
4- System: Is a “Tailor Made” Preset only applicable to the system designated on the “Programmed System”
label
5- System Cardioid: Is the twin brother of Preset number 4. Must be used on the rear-facing subwoofer on a
cardioid arrangement (no other adjustments needed)
6 / 7- User Defined: Free memory for user storage
TECHNICAL SPECIFICATIONS
HFA115s and HFA115sHP Amplifier Block Diagrams
NEXT HFA115s/HFA115sHP - User Manual
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V201609
DIMENSIONS
NEXT HFA115s TECHNICAL SPECIFICATIONS
Speaker Type
2-Channel ACTIVE Reflex Subwoofer
Frequency Response (-6dB)
32Hz – X-Over
Calculated Max. SPL (Cont/Peak)
132.4dB / 138.4dB (Half-Space)
Components
1 x 15” High Excursion / 4” Voice Coil Custom B&C Speaker
Amplifier Technology
2 Channel Switched Mode Class D with DSP (1650W)
Power to Int. Speaker (Sub) (RMS)
1100W
Power to Ext. Speaker (4Ω Sat)
(RMS)
550W
Construction
18mm Multi-laminate Birch Plywood, Screwed and Glued
Finish
Black Textured Scratch Resistant Paint
Grille
Steel, Black Finish (also available in other colours)
Connectors
Signal: 2 x XLR
Power: 2 x PowerCON
Sat. Output: 1 x Neutrik NL4
Data: 2 x RJ45
Dimensions (W x H x D)
448 x 568 x 566 mm
Net Weight
37.1 kg
NEXT HFA115sHP TECHNICAL SPECIFICATIONS
Speaker Type
ACTIVE Reflex Subwoofer
Frequency Response (-6dB)
32Hz – X-Over
Calculated Max. SPL (Cont/Peak)
135dB / 141dB (Half-Space)
Components
1 x 15” High Excursion / 4” Voice Coil Custom B&C Speaker
Amplifier Technology
Switched Mode Class D with DSP (2200W)
Construction
18mm Multi-laminate Birch Plywood, Screwed and Glued
Finish
Black Textured Scratch Resistant Paint
Grille
Steel, Black Finish (also available in other colours)
Connectors
Signal: 2 x XLR
Power: 2 x PowerCON
Data: 2 x RJ45
Dimensions (W x H x D)
448 x 568 x 566 mm
Net Weight
37.1 kg
NEXT HFA115s/HFA115sHP - User Manual
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WARRANTY
NEXT-proaudio’s products are warranted, by NEXT-proaudio, against manufacturing defects
in materials or craftsmanship over a period of 5 years for the passive loudspeakers, and 2 years for
all other products counting from the date of original purchase. The original receipt of purchase is
mandatory for warranty validation purposes, and the product must have been bought from a NEXTproaudio authorized dealer.
The warranty can be transferred to a subsequent owner during the warranty period; however,
this cannot extend the warranty period beyond the original warranty period of five years from the
original date of purchase stated on the NEXT-proaudio’s invoice.
During the warranty period NEXT-proaudio will, at its own discretion, either repair or replace
a product which prove to be defective provided that the product is returned in its original packaging,
shipping prepaid, to an authorized NEXT-proaudio service agent or distributor.
NEXT-proaudio cannot be held responsible for defects caused by unauthorized modifications,
improper use, negligence, exposure to inclement weather conditions, act of God or accident, or any
use of this product that is not in accordance with the instructions provided by this manual and/or
NEXT-proaudio. NEXT-proaudio is not liable for consequential damages.
This warranty is exclusive and no other warranty is expressed or implied. This warranty does
not affect your statutory rights.
NEXT HFA115s/HFA115sHP - User Manual
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V201609
CONTACTS
In case of any doubts or any information just:
Write us:
NEXT-PROAUDIO
Rua da Venda Nova, 295
4435-469 Rio Tinto
Portugal
Contact us:
Tel. +351 22 489 00 75
Fax. +351 22 480 50 97
Send an e-mail:
info@next-proaudio.com
Search our website:
www.next-proaudio.com
Follow us on:
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Instagram: instagram.com/nextproaudio
LinkedIn: linkedin.com/company/next-proaudio
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