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NEXT 

HFA

115s/

HFA

115sHP

 - User Manual 

www.next-proaudio.com 

 

- 4 - 

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 4

Ω

. 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  SOUNDWARE

1

  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 

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)

 

Summary of Contents for HFA115s

Page 1: ...V201609 HFA115s HFA115sHP ACTIVE Reflex Subwoofer USER MANUAL...

Page 2: ......

Page 3: ...ser 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...

Page 4: ...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 resp...

Page 5: ...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 clos...

Page 6: ...ile 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 electri...

Page 7: ...evel 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 Breake...

Page 8: ...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 t...

Page 9: ...le 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 N...

Page 10: ...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 pro...

Page 11: ...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 Facebook facebook com next...

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