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Overview:
When you’re ready to get serious about recording, it’s time
to step up to PreSonus Eris-series studio monitors. Cheap computer speakers and
home-stereo speakers won’t reveal the truth about your mix. They aren’t
designed for that.
- In contrast, Eris speakers are real studio monitors,
delivering a very accurate response with a tight bass and very clear upper end.
That’s what you need in a home studio.
- Indeed, thanks to well-designed Kevlar® low frequency
transducers, low-mass silk-dome tweeters, responsive Class AB amplification,
and professional acoustic-adjustment controls, all Eris models deliver the
goods.
- Yet Eris-series speakers are ultra-affordable, making them a
terrific value. And with three models, you can easily find the Eris monitor
that best suits your studio needs.
When Size Matters
- If space is at a premium, or if you want the ultimate in
portability, consider the ultra-compact Eris E4.5. It may be the size of a
computer speaker, but this mighty mite delivers professional audio quality,
thanks to a 4.5-inch, Kevlar low-frequency driver; a low-mass, 1 inch,
silk-dome tweeter with protective grille; and Class AB amplification. Each
speaker is powered by a 25W Class AB amplifier—plenty of juice for a small
speaker. The E4.5 ranges from 70 Hz up to 20 kHz, and at 6.42 x 9.45 x 7.09
inches (163 x 241 x 180 mm), you can shoehorn this little beauty into almost
any studio space
- All Eris speakers have front-ported enclosures made of
vinyl-laminated, medium-density fiberboard (MDF).
Gazintas
- The E4.5 has balanced ¼” TRS and unbalanced RCA inputs, as
well as unbalanced 1/8” inputs for your smartphone or MP3 player, giving you
all the flexibility you need when replacing computer speakers or those old
studio monitors that have misled your ears for the last time.
- Take a moment, if you will, to consider the E4.5’s balanced
TRS inputs; balanced inputs help you minimize noise—a pro feature you won’t
find on competing speakers in this class. That’s not the only
professional-class feature you get with Eris speakers that competitors can’t
match, though. Next, we’ll discuss some higher-end features that truly set Eris
apart from other budget-priced studio monitors.
You’re in control!
- Today’s music producers deal with a wide variety of musical
genres and often work in more than one location. It’s easy to take your Eris
speakers with you when you want to work in a different space. It’s almost as
easy to customize their sound for your room and type of music.
- The most basic control is the Input Gain, which determines
the signal level before it reaches the power amp. This is part of gain-staging
your overall system—that is, setting the levels for every part of the recording
chain in order to get the optimal level of clean audio all the way through.
Once you’ve gain-staged your system, you can leave this control alone.
Safety Matters
- Any loudspeaker is subject to an assortment of environmental
and performance problems, and Eris monitors offer protection from most common
of these. RF shielding protects against radio frequencies that could be induced
into the signal and become audible. (If you’ve ever heard a radio broadcast
unexpectedly coming out of a guitar amp, that’s the result of RF interference.)
- Eris monitors also provide over-temperature protection to
avoid heat-related issues, current-output limiting (to prevent damage should
there be a short circuit on the speaker terminals), and subsonic protection to
filter out extremely low-frequency vibrations that could interfere with the
woofer’s performance.
- Finally, Eris’ power amplifiers have a “soft startup” so
that you don’t get damaging pops in the speakers when you power them up.
Hook-up Diagram:
Note: AudioBox 22VSL is not included.
Features:
- 4.5-inch Kevlar low-frequency transducer
- 1-inch (25 mm), ultra-low-mass, silk-dome, high-frequency
transducer
- 50 watt, Class AB amplification (25W/side)
- Acoustic Tuning control for accurate mixing contour:
Midrange (+/-6 dB, continuously variable), HF (+/-6 dB, continuously variable),
High-Pass (Off, 80 Hz, 100 Hz), Acoustic Space settings (flat, -2, -4 dB)
- RF interference, output current limiting,
over-temperature, transient, and subsonic protection
- Optimized, resonance-suppressing internal bracing
- Balanced 1/4-inch TRS, unbalanced 1/8-inch TS, RCA, and
bare-wire inputs
- 1/8-inch stereo headphone output and bare-wire
power-amplifier output
- 100 dB maximum continuous SPL
- 70 Hz
- 20 kHz frequency response
Front Panel Features:
- Power Switch - This is the ON/OFF switch. The LED above the volume control indicates power status
- Volume - Sets the volume level of the input signal before it is amplified.This is also the volume control for the front panel headphone amp.
- AUX in - This stereo 1/8" jack can be used to patch in an MP3 player for a quick reference check.
- Headphone Out - This headphone output is controlled by the level knob
Rear Panel Features:
- INPUTS: The Eris E4.5 active monitor provides a choice of two pairs of inputs: left and right
balanced ¼” TRS and left and right
unbalanced RCA. These inputs accept a line-level
signal from an audio source and feed that signal to the each monitor’s built-in
power amplifier. These inputs are provided to enable flexible connectivity, not
for connecting multiple sources to your speakers simultaneously.
IEC Power Connection. The Eris E4.5 accepts a standard IEC
C7 power cord. The power switch is located
on the front panel of the active E4.5.
AC Select Switch. The input-power voltage is set at the factory
to correspond with the country to which it was shipped. Change the setting on
this switch only if you are using your Eris speakers in a country that uses a
different standard voltage than is used in the country where you purchased your
Eris E4.5
Acoustic Tuning Controls
High- Boosts or cuts
all frequencies above 10 kHz by ±6 dB.
Mid - Boosts of cuts frequencies around 1 kHz by ±6 dB
Low Cutoff - Rolls off the level of all frequencies below
the specified frequency (80 or 100 Hz) at a slope of -12 dB/octave. This can be
defeated by setting it to Flat, in which case, the monitor’s natural roll-off
takes over.
Acoustic Space- Cuts the level of all frequencies below 1 kHz
by the specified amount (-2 or -4 dB) to compensate for the bass boost that
occurs when the monitor is placed near a wall or corner. This can be defeated
by setting it to 0 dB.
Speaker Connections : Bare-wire connectors. This connection is used to power and send
signal to the passive E4.5. Be sure to connect the positive and negative
connections on your active E4.5 to the positive and negative connections,
respectively, on the passive E4.5 (i.e., connect positive to positive and
negative to negative).
What's in the Box?
- (1) PreSonus Eris E4.5 active studio monitor
- (1) PreSonus Eris
E4.5 passive studio monitor
- (1) 1.5m TRS 1/8” to
2 RCA cable
- (1) 1.5m TRS 1/8”
stereo cable
- (1) 2m bare-wire speaker cable
- (8) Foam feet, (4) to be placed on the bottom of each speaker to improve isolation
- (1) Power cable
Monitor Placement:
Specifications: