HPA E3i User manual

Owner’s Manual
PROFESSIONAL POWER AMPLIFIER
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WARNING

E3i / E5i / E7i
1
Table of Contents
Introduction 2
Features 3
Front Panel Controls 4
RearPanelControls 5
Getting Started - DSP 6
Presets 8
Speaker Connections 9
Wiring 10
Specifications 11
Black Diagrams 12

E3i / E5i / E7i
2
Introduction
Introduction
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E3i / E5i / E7i
PROFESSIONAL AMPLIFIER
Welcome.
Congratulation and thank you for the purchasing Ei Series, a state-of-the-art
professional amplifier.
These amplifier are designed to provide a big impact in sound reproduction and
to produce the best and highest quality audio at an affordable price. We wish you
great enjoyment and satisfaction when using your amplifier, whether you are an
installation, or reinforcement engineer.
Unpacking and Installation
Although it is neither complicated to install nor difficult to operate your amplifier,
a few minutes of your time is required to read this manual for a properly wired
installation and becoming familiar with its features and how to use them. Please
take a great care in unpacking your set and do not discard the carton and other
packing materials. They may be needed when moving your set and are required if
it ever becomes necessary to return your set for service. Never place the unit near
radiator, in front of heating vents, to direct sun light, in excessive humid or dusty
location to avoid damages and to guar- anty a long reliable use. Connect your unit
with the system components according to the description on the following pages.

E3i / E5i / E7i
3
Features
Features
Features
• HPA Ei-Series amplier delivers the following power ratings.
E3i 2 x 300 Watts at 8 ohm, 2 x 420 Watts at 4 ohm
E5i 2 x 500 Watts at 8 ohm, 2 x 700 Watts at 4 ohm
E7i 2 x 700 Watts at 8 ohm, 2 x 1000 Watts at 4 ohm
• Independent input level controls for each channel allow precision adjustments.
• Precise signal , -10dB and Limit LED indicators to monitor performance, allow
you to correct for overloading (clipping) condition.
• One-tunnel and two temperature-sensitivity forced-air cooling system to main
tain a low temperature working station.
• Balanced XLR and balanced 1/4-inch TRS input connector for each
channel.
• 5-way output binding posts or Speaker connectors enable secure operation.
• High-current toroidal transformer for absolute reliability.
• Independent DC thermal and overload protection on each channel automatically
protects amplifier and speaker.
• Full - featured DSP with LCD display.
• The Ei series can be mounted in any standard 19” rack.

E3i / E5i / E7i
4
Front Panel Controls
Front Panel Controls
PROFESSIONAL POWER AMPLIFIER
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 
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 
  



 
1. Rack Mounting Ears
Two front panel mounting holes are pro-
vided on each mounting ear.
2. Fan Vent
Cool air is flowed through the front fan
filters, reducing the temperature of the
inside components while forcing the heat
out the rear vents. Never block these
vents and keep them clean at all time.
3. AC Power Switch
This switch controls the units main
power.
4. Signal Indicators
The green LED starts ashing on soft
signals (-20 dB),and changes to steady
green as the signal level increases.
5. -10dB Indicators
The green LED starts ashing on soft
signals (-10 dB),and changes to steady
green as the signal level increases.
6. Limit Indicators
These red LED will illuminate at the
clip- ping threshold. If it lights frequently,
you maybe overloading the HPA Ei-
Series and a distorted signal is probably
being output. Under heavy clipping
actiity lower the channel gain controls
to reduce the risk of damage to your
speakers and amplifier.
7. Channel input level control
These two 21-position detented con-
trols adjust input level for their respec-
tive amplifier channels. At their fully
counter-clockwise position, the signal is
attenuated by more than 80dB. At their
fully clockwise position, the signal is at
unity gain. When +4 dBu of signal ar-
rives at the input jacks and the Channel
input level controls are set to their fully
clock-wise position, the Ei Series deliv-
ers full power output.
8. LCD Display
Backlit display shows current setup
information and navigation through the
DSP settings.
9. PREV / NEXT / ENTER
Use these buttons to navigate through
the DSP functions.

E3i / E5i / E7i
5
Rear Panel Controls
Rear Panel Controls
CH 1
CH 2
CH2
HF
INPUTS
INPUTS
CH 1
CH 1
CH 2
SPEAKER OUT
~ AC INPUT
230V 50/60Hz,800W
DESIGNED AND ENGINEERED IN KOREA
CH 2
CIRCUIT
BREAKER
PROFESSIONAL POWER AMPLIFIER
4
 


1. Input connectors
Connect the input source to these electronic balanced connectors using either XLR or
1/4” TRS plugs. The 1/4” TRS and XLR plug congured as follows : Pin 2 (Tip) hot, Pin
3 (Ring) cold, and Pin 1 (Sleeve) ground. We recommend the use of balanced three-
con- ductor cabling wherever possible. Unbalanced two-conductor 1/4” plugs can
also be inserted into these inputs, but you will get better signal quality and less outside
noise and hum if you use balanced lines. Stereo signal should be connected to both
the Channel 1 and Channel 2 input jacks , however , when operating the Ei Series in
Bridged Mono or Parallel modes, use the Channel 1 input jack only.
2. 5-way Binding Post
Connect each channel of the Ei Series to 4 ohms or 8 ohms loudspeakers.Two pairs of
5-way binding posts are provided for each.channel, so that paralleling of speakers is
pos- sible.Connection to the binding posts can be made with bare wire, banana plugs,
or spade lug terminations.
3. Speakon output connectors
You can use these to connect each channel of Ei Series to 8 ohms or 4 ohms loud-
speakers.
4. Circuit breaker
AC BREAKER RESET
If the amplier shuts off after a long burst of power, turn off the AC switch and check
the circuit breaker.The button can be pressed back in after a 30 second cool-down
period.If the breaker trips repeatedly,the amplier may need servicing.
5. AC input
( E3i / E5i / E7i)
IEC connector for AC power cable. Con-
nect the supplied heavy-gauge 3-pin IEC power cable.
6.Fan
This is a variable speed cooling fan. Cooling air enters the amplifier through the air
ports located on front of the amplier chassis, Be sure not to block these
ports when installing the amplifier or other associated equipment.

E3i / E5i / E7i
6
Getting Started - DSP
Getting Started - DSP
The Ei-Series power amplier features sophisticated high-performance DSP with
control for the input and output routing, lter network, EQ, limiter, and time align-
ment delay. Follow these steps to navigate through the Ei-Series internal DSP
settings:
1. Turn the Ei-Series power ON. The startup screen will be displayed
2. Press the RREV & NEXT buttons to step through the DSP parameters
3. Press PREV&NEXT knob to adjust settings. A box will ash in the upper right
corner when a setting has been changed.
DSP Settings
Preset - Choose either Manual Mode, which provides access to the full set of
adjustable parameters, or from the four speaker
presets: 2 full range, Mono 2-way, Sub/Sat, or 2 subs.
I/O - The I/O screen adjusts the settings for how the inputs will be routed through
the DSP to the output connectors.
Stereo: Ch A Input -> Ch A Output & Ch B Input -> Ch B Output
Mono A+B dual: Ch A and Ch B inputs are mixed together, each level control
adjusts the corresponding output level
Mono A+B link: Ch A and Ch B inputs are mixed together, Ch A level control
adjusts both Ch A and Ch B output levels
Parallel A dual: Ch A input is sent to both Ch A and Ch B outputs, each level
control adjust the corresponding output level
Parallel A link: Ch A input is sent to both Ch A and Ch B outputs, CH A level con-
trol adjusts the output level for both channels.
Filter (Manual mode) - The filter section allows you to build you own crossover or
add speaker protection by stetting the
filters to remove the upper and lower limits of the audio bandwidth.
Filter Ch A - Press the Edit button to enter the lter parameters for channel A.
Filter Ch B - Press the Edit button to enter the lter parameters for channel B. If
the Ch A lter is On, then the Ch B lter
can be set to the same settings by choosing A=B
LPF Freq - Rotate the EDIT knob to adjust the low pass lter frequency.
LPF Slope - Rotate the EDIT knob to adjust the lter type and slope roll off in dB
per octave.
HPF Freq - Rotate the EDIT knob to adjust the high pass lter frequency.
HPF Slope - Rotate the EDIT knob to adjust the lter type and slope roll off in dB
per octave.
X-Over (speaker preset) - When using a speaker preset, the filters are already
configured for a crossover. This allows you to
easily set the crossover frequency for your speaker configuration.

E3i / E5i / E7i
7
Getting Started - DSP
Getting Started - DSP
EQ -performance setting: DJ, Vocal, Live Sound, Install, Rock, Dance, Jazz.
Limiter - The limiter provides additional protection to your speakers from over-
load. Press the EDIT button to adjust. The
Limiter can be set to -1dB, -3dB, and -9dB.
Delay - The delay time can be used to align speakers in a system. This is useful
when using a subwoofer and satellite
speaker for front of house to ensure the speakers are in phase for optimal perfor-
mance. Click the Edit button to adjust. The
Delay settings are displayed in milliseconds, inches/feet, and centimeters/meters.
Factory Reset - This sets all parameters and presets back to the original factory
default settings.

E3i / E5i / E7i
8
The Ei series DSP features four speaker presets that will allow you to quickly
have your amplifier up and running with your speaker configuration. The presets
only display the parameters that are essential to the speaker arrangement. If you
require additional adjustments, all parameter adjustments are available in Manual
mode. Below are typical wiring congurations for the four presets.
Presets
CH 1
CH 2
CH2
HF
INPUTS
INPUTS
CH 1
CH 1
CH 2
SPEAKER OUT
~ ACINPU T
230V50/60Hz, 800W
DESIGNED AND ENGINEERED IN KOREA
CH 2
CIRCUIT
BREAKER
PROFESSIONAL POWER AMPLIFIER
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MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4 ON
CH 1
CH 2
CH2
HF
INPUTS
INPUTS
CH 1
CH 1
CH 2
SPEAKER OUT
~ ACINPUT
230V50/60Hz, 800W
DESIGNED AND ENGINEERED IN KOREA
CH 2
CIRCUIT
BREAKER
PROFESSIONAL POWER AMPLIFIER
4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4 ON
CH 1
CH 2
CH2
HF
INPUTS
INPUTS
CH 1
CH 1
CH 2
SPEAKER OUT
~ ACINPU T
230V50/60Hz, 800W
DESIGNED AND ENGINEERED IN KOREA
CH 2
CIRCUIT
BREAKER
PROFESSIONAL POWER AMPLIFIER
4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4 ON
CH 1
CH 2
CH2
HF
INPUTS
INPUTS
CH 1
CH 1
CH 2
SPEAKER OUT
~ ACINPU T
230V50/60Hz, 800W
DESIGNED AND ENGINEERED IN KOREA
CH 2
CIRCUIT
BREAKER
PROFESSIONAL POWER AMPLIFIER
4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4
MUTE
ALT3/4 ON
2 full range Mono 2-way (Input Mono A+B link)
2 subs (Input Mono A+B Dual)
Sub/Sat
Presets

E3i / E5i / E7i
9
Speaker Connections
Speaker Connections
Speaker Connections
Speakers can be connected to the amplier in three ways, as shown below. Note
that speaker impedance will vary according to the connection method and the
number of speakers. Please be sure that your speaker’s impedance is not less
than the relevant minimum value indicated below.
Stereo Mode
Set the Mode switch to FULL RANGE to use the unit as a stereo amplier. The
volume controls on the front panel (A and B) let you control the volume of each
channel independently.
5-way binding post
CH 1
CH 2
INPUTS
INPUTS
CH 1
CH 1
CH 2
SPEAKER OUT
CH 2
or
or
CH2
HF
CH 1
CH 2
INPUTS
INPUTS
CH 1
CH 1
CH 2
SPEAKER OUT
CH 2
B
A
Speakon connector
Minimum speaker impedance:
E3i / E5i / E7i : 4Ω

E3i / E5i / E7i
10
Wiring
These are several ways to interface the Ei series amplier to support a variety of
applications. The Ei series features balanced inputs and outputs, so connecting
balanced and unbalanced signals is possibles.
Unbalances 1/4” Connector
Balances TRS 1/4” Connector
XLR Balanced Wiring Guide
Speakon® Output Connector
Wiring

E3i / E5i / E7i
11
Specifications
Specifications
Necessary modifications are carried out without notice.
E3i E5i E7i
Output Power Stereo Both Channel Driven
8 ohms 300 W 500 W 700 W
4 ohms 420 W 700 W 1000 W
Signal to Noise Ratio
(20 Hz ~ 20k Hz) 100 dB 100 dB 100 dB
Input sensitivity @8 ohms 5 dBu 5 dBu 5 dBu
Voltage Gain at 8 ohms 32 dB 34.5 dB 36 dB
Output Circuitry AB AB AB
Curent Consumption 230Vac
@ 1/8 power @4 ohms 3.3 A 2.68 A 3.98 A
@ 1/3 power @4 ohms 5 A 6.8 A 8.2 A
@ Rated power@4ohms 7.95 A 11.9 A 17.6 A
Cooling
0.01% 0.01% 0.01%
20 Hz-20k Hz HalPower
1k Hz Rated Power 0.1% 0.1% 0.1%
Frequency Response 0/-1dB ; 20Hz-20KHz
nput Impedance 15Kohm Unbalanced, 30Kohm Balanced
Input Clipping 22dBu (10Vrms)
Cooling Continuously variable speed, Front to rear
Connectors (each)
Input Active balanced XLR and 1/4” TRS
Output 5-way Binding post and Speakon
Control Front AC power switch, Channel 1 and 2 volume
Protection Short circuit, Thermal, Current limit, DC offset, Current inrush, Turn on / Turn off
muting
DSP
Display 2x16 Character LCD
Modes Manual mode, 2 Full Range, Mono 2-Way, Sub/Sat, 2 Subs
I/O Settings Stereo, Mono A+B Dual, Mono A+B Link, Parallel A Dual, Parallel
A Link
Digital Dynamics function Filter, Crossover, Gain Offset, EQ, Limiter
Digital Delay Function Max 20ms per channel
Digital EQ function per channel f0: 1/12 Octave at 20~20kHz, Gain: +/- 12dB, Q: 0.5~5.0
Presets: DJ, Vocal, Live Sound, Install, Rock, Dance and Jazz
Setup Factory Reset
Power requirements 230Vac, 50/60Hz
Dimensions (W × H × D) 482 × 88 × 330mm
Net Weight 12.45Kg 12.24Kg 13.56Kg

E3i / E5i / E7i
12
Block diagrams
Block diagrams

E3i / E5i / E7i
13