USOUND MEGACLITE 4.0 Instruction manual
Megaclite 4.0 is a set of USB-C
earphones. It features the new
USound piezoelectric MEMS speak-
er technology. Megaclite presents a
distinctive sound that sets it apart
from balanced armature and electro-
dynamic earphones designs. MEMS
speakers are lightweight and act
like a linear motor resulting in a full
bandwidth sound with strong bass,
clear treble and impulse accuracy.
FEATURES
Stereo USB-C earphones with
MEMS full-range speakers
High resolution audio processing
with 32 bit, 48 kHz
Bass boosted for dynamic sound
(changeable via rmware update)
The earphones offer 105 dB
SPL@1 kHz, at less than 1% THD
High performance DSP for audio
lter customisation
PACKAGE CONTENT
Megaclite USB-C earphones
Ear tip set in different sizes
USB-C
EARPHONES
MEGACLITE 4.0 UH-R2040
QUICK USER GUIDE
MEGACLITE 4.0 SPLMAX FREQUENCY RESPONSE
20 30 50 70 100 200 300 500 700 1000 2000 3000 5000 7000 10000 20000
Frequency [Hz]
90
100
110
120
SPL Magnitude [dB re 20 µPa]
Megaclite 4.0
measured as per IEC60318-4 (GRAS 43AC)
20 30 50 70 100 200 300 500 700 1000 2000 3000 5000 7000 10000 20000
Frequency [Hz]
90
100
110
120
SPL Magnitude [dB re 20 µPa]
Megaclite 4.0
measured as per IEC60318-4 (GRAS 43AC)
PERFORMANCE REQUIREMENTS
Parameter Test conditions MIN TYP MAX Unit
VUSB Main supply provided by USB-C
connector
4.45 5.0 5.25 V
Max SPL SPL (f=1 kHz) at -0 dBFS 104.3 105.3 106.3 dB
THD Measured at 94 dB / 1 kHz 0.4 0.5 0.8 %
Bass boost Difference between SPL (f=60 Hz)
and SPL (f=800 Hz)
8.4 9 9.7 dB
fLow Low frequency limit (-3 dB) 16 17.8 20 Hz
fHigh High frequency limit (-3 dB) 20 21 24 kHz
IMPORTANT NOTICE AND DISCLAIMER
USound GmbH (“USound”) makes no warranties for the use of USound products, other than those
expressly contained in USound’s applicable General Terms of Sale, located at www.usound.com.
USound assumes no responsibility for any errors which may have crept into this document, reserves
the right to change devices or specications detailed herein at any time without notice, and does not
make any commitment to update the information contained herein. No license to patents or other
intellectual property rights of USound are granted in connection with the sale of USound products,
neither expressly nor implicitly.
In respect of the intended use of USound products by the customer, the customer is solely respon-
sible for observing existing patents and other intellectual property rights of third parties and for ob-
taining, as the case may be, the necessary licenses. For more information about USound patents visit
https://www.usound.com/patents/.
Important note: The use of USound products as components in medical devices and/or medical
applications, including but not limited to, safety and life supporting systems, where malfunctions
of such USound products might result in damage to and/or injury or death of persons is expressly
prohibited, as USound products are neither destined nor qualied for use as components in such
medical devices and/or medical applications. The prohibited use of USound products in such medical
devices and/or medical applications is exclusively at the risk of the customer.
Megaclite 4.0 UH-R2040 Quick guide
Released on September 2020
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1
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