ReProducer Epic 55 User manual

1
Epic 55
Mid-field Studio Monitor
User Guide

2
Welcome!.....................................................................................................3
The Concept Behind Epic 55...............................................................3
Quick Reference.......................................................................................4
Setup Recommendations....................................................................5
Unboxing.....................................................................................................5
Distance & Position..................................................................................5
Ideal Listening Distance & Height.........................................6
Projection Field Width.................................................................7
Stereo Image..............................................................................................9
Fire-Tuning & Room Adjustments...............................................10
Overload....................................................................................................10
Sound Level................................................................................................11
Technical Specifications......................................................................12
Technical Support..................................................................................13
Table of Contents

• High sound pressure level can DAMAGE your hearing
permanently! Especially at short distances the Epic 55
is able to generate a significantly higher SPL than the
recommended limit for ear protection!
• To prevent compression effects we decided not to use any
dynamic limitation. Please make sure to reduce the levels if
you became aware of any DISTORTION!
• Please do NOT expose the speakers to heat, direct sunlight
or moisture! Please only use a lightly moistened cloth to
clean the surface of the cabinet.
• Please do NOT attempt to open the cabinet! There are no user
serviceable parts inside and you risk getting an electric SHOCK!
!
3
Welcome!
Thank you for purchasing the Epic 55 two-way professional mid-field monitor speaker!
We hope you enjoy setting up and using this amazing mid-field monitoring solution.
This guide will give you some important safety tips and suggestions to get the best
perfomance from your Epic 55 monitor(s)!
We get excited each time someone opens, unwraps, and installs their new Epic
monitors, please feel free to share your studio shots with us!
The Concept Behind Epic 55
Following the release of the Epic 55’s smaller sibling, the Epic 5 near-field monitor, it
was a natural step for our next product to be something... Bigger!
In the tradition of creating uncompromising products, we continued the effort to
develop all relevant parts in-house for the most accurate sound performance.
After nearly three years of development, we proudly present the Epic 55 – which
achieves all our goals:
To design reliable, sonically uncompromising, and visually stunning studio monitors
with flat and wide frequency response, fast transient response at all frequencies, high
and natural dynamic range, low noise and low distortion – that allow audio engineers
to make sound decisions quickly in professional working environments and project
studios alike.

4
Epic 55 Quick Reference
Grill
Woofer
Woofer
LED
Tweeter
Rotatable Logo
Spike
Silicone Pad
Back Panel
Front Panel
Standby Switch
XLR Input
Power Switch
Power Socket
Gain Control
High Frequency Trim
Low Frequency Trim
Clip Indicator
Standby Mode
Working Mode

5
Setup Recommendations
In order to achieve the best possible sound is highly recommended to not only
consider the interaction between the loudspeakers and the surrounding acoustical
environment but also the position of the listener as relating to the loudspeakers. Here
are some pertinent suggestions.
When removing your Epic 55, from the
fabric bag, be sure not touch or damage the
passive radiator in the process.
!
Unboxing
• Remove the Epic 55 from its carrying case,
and from the protective cloth bag, being
sure not to touch the passive radiator within
the bag.
• If you plan you use the speaker in an upright
position, be sure to insert the included spikes
tightly as shown in the figure.
Distance & Position
Epic 55 is a “mid-field” monitor, designed with
more low-end power, and intended for larger
spaces than our Epic 5 “near-field” monitor.
Depending on your studio size, you may need
to install Epic 55 in an upright or horizontal
position – with each position having unique
characteristics.

Ideal Listening Distance & Height:
Epic 55 is optimized for a listening distance of 1.2 m to 2.5 m, with the tweeter level
with the listener’s ears.
Vertical/Upright:
Horizontal/Flat:
Note that when used in a horizontal/flat orientation, the entire speaker cabinet must
be in a higher position.
6

7
Projection Field Width
The audio projection field varies depending on the orientation in which the speaker
is used.
• Vertical/Upright: (Recommended where possible) Projection field is wider
horizontally (i.e., side-to-side), and narrower vertically (i.e., up and down).
Side View
Top View

8
• Horizontal/Flat: Projection field is wider vertically (i.e., up and down), and narrower
horizontally (i.e., side-to-side). The optimal projection angle is significantly smaller
than in the vertical setup, and introduces the potential issue of reflections from
the ceiling and the work surface being stronger in horizontal operation than in
vertical operation.
Side View
Top View

9
Stereo Image
To achieve perfect stereo imaging please make sure that the position of the speakers
– and the listener of course – are located symmetrically in the room, so the distance
from left speaker to left wall and right speaker to right wall should be (approximately)
similar. The farther away the walls are the more leeway you have as the reflected sound
will be delayed more.
Please make sure there are no obstacles between the speakers and your ears. Nothing
that will obstruct or break the sound waves, like monitor screens, large-leafed plants,
etc… Acoustically transparent elements can be placed there, but we can’t think of any
qualifying items currently. Please let us know if you find exceptions to the rule!
The often quoted equilateral triangle is a practical recommendation, but depending
on the spatial configuration of the listening room and the amount and quality of any
reflections (primarily from the walls, ceiling and floor) it might be preferable to move
the listening position to a spot slightly inside the triangle.
An easy way to find the optimal listening position is to play a mono signal over both
speakers, moving slowly back and forth until a solid phantom source is discernible in
the middle.

10
Fine Tuning and Room Adjustment
The listening environment usually has a big influence on the perceived sound quality.
Depending on the position of the speakers in the room and the properties of the space
a correction may be needed, and what do you know? We have just the thing!
On the back side of the cabinet you will find two knobs that allow you to optimize the
tuning of the Epic 55. Both Trims cut or boost in a range of ±5 dB in 1 dB steps. The HF-
Trim starts above 2.5 kHz, the LF-Trim below 250 Hz.
In a bright sounding room, with many flat and solid surfaces, you may need less treble.
Use the HF-Trim-Knob (“HighFrequency-Tune”) to attenuate the HF range. In a dark or
boomy sounding environment, or if the listening distance is higher than recommended,
you can increase the HF component proportionally.
The LF-Trim (“Low-Frequency-Tune”) works in a similar fashion. It will usually be the
distance between the cabinets and the walls that necessitates a LF adjustment. The
original tuning was determined in a free (4Pi), anechoic environment with the knobs
in the middle position. Close to any wall this will change to a kind of boundary, 2Pi
arrangement with a LF boost. You can reduce this effect using the LF-Trim.
All the while maintaining excellent phase response!
Overload
When the white LED on the front plate turns red it indicates that your level is nearing
the clipping point. Temporary red flashing is acceptable, especially when working
with audio containing a disproportionate amount of LF content. But when the LED is
more on than off you should grab the precision gain attenuator (not a simple volume
control!) and back down.

11
Sound Level
The linearity of human auditory perception is highly dependent of the sound pressure
level, and the range for optimal linearity is limited!
We recommend a use of 83-86 dB Sound Pressure Level / SPL at the listening position.
Staying in this range will ensure you are able to make the right mixing decision for a
long period of time.
With these values you can’t go wrong! Mastering engineer Bob Katz recommends
working at 83 dB SPL (C-weighted, slow meter setting), calibrated using pink noise
for a single channel, 86 dB SPL for stereo (stereo combined using uncorrelated pink
noise).
And account for listening fatigue! Take a break when you feel the need to raise the
overall level. Rest assured, this the right thing to do.
Please do not exaggerate the level as this
can possibly damage your ears permanently!
!

12
Frequency Response (Tweeter) +/- 3dB 40 — 30,000 Hz
Frequency Response (Woofer) +/-10dB 35 — 33,000 Hz
Amplifier Power 120W RMS X 2, Tweeter 75W RMS
Amplifier Technology 115dB dynamic range, high current, high damping, range
over 100KHz, ultra low no noise
Max SPL per pair in 1m 112 dB ( C) SPL
Mains Power Supply worldwide 100 - 240V~, 50/60Hz
Power Consumption(max.) 200 VA
Woofer 5.25”, own design, fast transient, free of parasitic resonance
Tweeter 1”, own design, metal dome with rear chamber
Crossover Frequency 2.5KHz, 24dB/octave
Input Impedance Balanced 12 kOhm
Input Sensitivity Balanced + 4dBu
Room Correction EQ High Frequency +/- 5dB in 1dB steps from 2,5 kHz
Room Correction EQ Low Frequency +/- 5dB in 1dB steps below 250 Hz
Standby On/Off Switchable
Dimension Without Spikes 515(H ) x 190(W) x 320 (D) mm
Dimension With Spikes 535(H ) x 190(W) x 320 (D) mm
Weight Per Unit (Net) 14.1 Kgs
Technical Specifications

Technical Support
© 2020 reProducer Audio Labs | reproduceraudiolabs.com
If you need help with your Epic 55s, please don’t hesitate to contact us!
[e-mail]
reProducer Audio Labs distributors can also provide support in the native language
of their territories.
Germany
TOMESO eK
Wernher-von-Braun-Str. 9
69214 Eppelheim
Tel: [phone]
FAX: [phone]
info@ tomeso.de
www.tomeso.de
United States
Eleven Dimensions Media, LLC
40 Fourth Street, #259
Petaluma CA 94952
USA
Tel: [phone]
11dmedia.com
Japan
Hookup Inc.
Nobui bldg. Annex 3F
1-2-2 Ueno, Taito-ku
Tokyo 110-0005
Tel: [phone]
FAX: [phone]
hookup.co.jp
Korea
Gearlounge
Dokmak-ro 8-gil 24, Mapo-Gu
1F, 2F, 5F, 6F, B2, B1
Seoul [04072]
Tel: [phone]
gearlounge.com