VIBRATO MODEL ONE User manual

MODEL ONE
Intergrated Amplifier
OWNER’S MANUAL

Safety precautions
Move/Unpack
• The Model One is pretty heavy and it is
strongly recommended to move it by 2 people
in case it hurts others.
After unpacking
• Please keep all the package and use the
original package for all further transport.
• Please check the cabinet and see if any
damage caused by the transport. If found any
t r a c e o f d a m a g e , p l e a s e c o n t a c t t h e
authorized distributor of VIBRATOTM and will
help solve it properly.
• Please take out and check the accessory box
according to the following list. Make sure all
the accessories are included. Please contact
the authorized distributor of VIBRATOTM if it
is incomplete.
Accessories List：
1 pc of IEC power cables
1 pc of remote control
1 pc of 3V button cell
Yo u m a y d o w n l o a d t h i s m a n u a l o n
www.nsraudio.com
Warranty Service
• Please send back the warranty card to the
follow i n g a d dress with i n 1 5 d a ys after
purchasing:
Room 1103, Building 1,Phase 6, Tian’an
Digital New City, No.12, Jianping Road,
Guicheng Subdistrict, Nanhai District, Foshan
City, Guangdong Province, China
• Please keep the dated original receipt as a
proof for warranty.
• Please keep the package and send back to
a f t e r - s a l e s d e p a r t m e n t w i t h t h e w h o l e
package when needed repairing
•MODEL ONE is entitled to 3 years free
warranty. Please refer to the warranty terms
by the warranty card.
Caution: The internal of Model One is
afforded by a circuit that higher than the
safety voltage, with a precision of high
integration circuit design, and there is not
any spare parts that could be repaired by
user. To remain the best setting and reduce
the risk of electronic shock, please do not
take apart the cabinet in case being
canceled the warranty service .
1

1. HDMI native DSD interface
HDMI interface could support both 1080p video and 8-
channel high definition digital audio with bandwidth as high
as 18Gbps. The Native 12S and DSD digital audio internal
bus are built in the main internal bus of the HDMI interface,
making audio transport without any format conversion. It
could transmit 8-channel of PCM audio with 24bit 192Khz
directly and DSD native audio stream with 1bit 5.6Mbps.
The decoding process is that HDMI native DSD bus
interface could transport the DSD original format audio
stream received from the output of SACD or blue ray SACD
HDMI interface to DSD internal bus of ESS9018 chip
without any format conversion process, which realizes an
authentic DSD native data decoding directly and ensures
the 100% realistic reproduction of music.
2.Based on the Latest Xmos DSD Solution
Another biggest feature is that the latest Xmos is equipped
with built-in DCA , which not only supports Native DSD data
transportation provided by USB Audio Class 2.0 but also be
compatible with the current common DSD mode of Dop
mode. The Xmos USB core technology could input Native
D S D d a t a w h i c h i s u p t o 3 2 - b i t / 3 8 4 k H z P C M ,
DSD64/2.8Mhz, DSD128/5.6Mhz and DSD256/11.2Mhz to
the USB audio interface. Except for the traditional PCM
digital stream, it supports all popular PC digital audio
format but also the decoding for the native stream of DXD
and DSD.
3. Dual ESS9018 DAC design with 8-channel parallel
mono output mode
Audio decoding is powered by 2 groups of ESSSabre
ESS9018 chip with patented technology of 32 bit”Time
Domain”eliminate jitter clock, and digital audio data is
c o m p l e t e l y a v a i l a b l e f o r P C M u p t o
32bit/384kHz,DSD64/DSD128 and DSD256 by Xmos USB
interface. As a result, it could be compatible with those high
resolution format without any further upgrade. At the same
t i m e , i t i s e q u i p p e d w i t h a T C X O ( Te m p e r a t u r e
Compensated Crystal Oscillato) with ultra high accuracy as
little as 1ppm so that the high dynamic high contrast
characteristic of high resolution digital audio could be
perfectly remain. You could enjoy an unprecedented
experience even though playing the compressed audio like
MP3.
4.Pure analogue power design
The power system of digital circuits and analogue circuits
are separated that ensures the pure and accurate
reproduction. Digital part is totally isolated from analogue
parts from power to circuit board, and the internal cables
are as less as possible so as to reduce the interfere with the
sound. The circuit board design use the quality sound as a
starting point with sophisticated materials.
The apparatus has a built-in authentic hi-end analogue
preamplifier featuring with a finely tuned DAC which could
set a proper level balanced XLR output to amplifier. The
preamplifier part has a built-in Pre out output interface so
as to connect the external audio equipment. The output of
single-ended signal is provided by high quality bandwidth
and ultra CMRR transformer, being completely consistent
with the sound from the XLR output and providing a more
suitable sound for the audiophile within the sound
characteristic of big dynamic, high density and vigorous.
5. Floating design
The floating designed DAC has a instrument level single-
ended output module(audio coupling transformer) with
CMRR up to 90dB and bandwidth up to 22Mhz. It could
provide large dynamic and wide bandwidth audio single-
ended output with reduction rate of 100% symmetric
int erf a ce, m aki n g t h e sou nd m ore l i ste nab l e a n d
interesting. Audiophiles could enjoy the high quality sound
from symmetric interface by the single-ended output.
Product description
6.Ultra-low distortion with high precision balanced
analog volume potentiometer
The output volume from the traditional DAC decoder
which supports high level pre amplifier output is adjusted
by DAC chip digital attenuator, however, we chose
balanced analog amplified volume attenuation system
modules , as a result, linear regulation could be accurate to
0.5db per step, making the volume control more smoothly
without any distortion and noise from the traditional
potentiometer.
Model one could be used as a preamplifier as the DAC
symmetric output level could be up to 2.7v rms and the non
symmetric one could be up to 1.2v rms. A pure analog
symmetric high precision potentiometer is designed at the
output, which could control the output volume level more
precise with 0.5db per step from 90db to 0db. The analogue
symmetric audio signal outputs directly via symmetric level
adjustment so as to realize the control to the preamplifier
output volume which is convenient for connecting dual
amplifier or high quality active subwoofer.
7. The heavy weight double sandwich chassis design
The ultra-thick combined sandwich chassis is made by
mixed material with a design of unique suspension and
shock-absorbing technology. The customized shock-
absorbing material is sandwiched between steel casing and
thick aluminum alloy chassis base, which could eliminate
the bad effect of vibration to the sound subtly with the large
bronze spikes and realize a perfect suspension. The effect
of perfectly isolating from the interference of the external
vibration and eliminating the mechanical resonance itself is
far more than a common so-called heavy weight materials
designed with single material.
The internal circuit boards and components are all coated
by shock abortion material, which could completely
eliminate the effects of subtle vibrations due to the voltage
and current that generated by working component to the
sound, as a result it could significantly increased the
cleanliness and fluency of the sound. All the electronic
components are working in exactly the same temperature
due to the hermetic chassis, which prevents the component
and circuits from being corroded by dust and moisture, thus
increasing the service life.
8. Fully balanced high-speed analog amplifier circuit
The available bandwidth of the apparatus could reach to
650 kHz in (-3dB) and ensure the flat of the frequency
response within listening range, which can perfectly
reproduce the high resolution files and the essence of high-
contrast and high bandwidth for the new generation
recording. Not only ensures the available wide bandwidth
but it also allows the rotation rate to reach to excellent as
85Vus(p-p), and the result is that the reproduction details
will not be dragged and fuzzy, like accurately focusing a
high resolution pictures. Thanks to the selective transistor,
the High power could coexist with low distortion, and there
is absolutely no roughness like the normal transistor. The
paired transistors are working in the environment of the
same temperature and low vibration due to the built-in non
reso n a nce the r m al d e s ign and fur t h er t h e m u sic
reproduction perfectly .The key to make the music alive and
rich is that the full range has a very low distortion while full
power output.
22

Power requirement
MODEL ONE with default setting applies to 50Hz/220v AC power. Please make sure the AC power
is consistent with the specification marked on the label of the apparatus before using it.
If MODEL ONE is applied with a improper AC voltage, it may cause damage to it and will lead to
safety and fire problem.
Position and ventilation
• In order for ventilation, please do not put anything above the apparatus if it is installed on the rack,
such as the roof of the rack . Please do not put the apparatus into the inclosed rack or closet.
• Please place the apparatus on a flat, smooth and stable surface.
• To reduce the lenght of the inter connecting cables, please mount the apparatus as close as
possible to the other components
• The place for mounting should be dry and well-ventilated without being exposed to the sunlight.
•The apparatus should not be exposed to high temperature, moisture, steam, smoggy, or dusty
environment.
• To avoid damaging and the risk of electronic shock, do not pour the water directly on the apparatus
Warning：
1.Make sure that all components in the audio system are properly grounded. Please do not
use the grounding disconnector which could destroy the polarity or grounding plug that has
the safety performance, since it will cause a dangerous voltage between components and
lead to personal and property losses.
2.MODEL ONE could deliver a elegant and unforgettably within ultra high power.
Your power supply conditions may become as one of the factors to limit the system
performance based on your listening habits, as well as the quantity of speakers and power
amplifiers that you require in your system requirements. You may consider to install a
specified AC circuit if it happens. Please consult a qualified electrician if the power is
supplied by multiple AC circuit so as to make sure all the components are working in same,
stable and low impedance grounding condition. Unplug the MODEL ONE during lightening
storms or when unused for long period of time.
3. Unplug the MODEL ONE from the power socket before remove it and make sure the power is
off.
3
Install Caution

PO WER S PIK E
INPUT SELECT VOLUMELE D DIS PLA Y
Front panel
POWER
Power button is hidden in the lower left side of the spikes, and could switch on/off
KNOB
Input source select：Push the Source knob before selecting the input source, then switch to different
sources by left-right rotating. The source name would be shown on the LED display.
VOLUME
This is a volume knob without sections, and it ranges from -99dB to 0dB with precise adjustment.
Increase the volume when turning to right, and decrease the volume by turning left.
LED DISPLAY
It is OLED display and could show information as follows:
Volume
Input source name
Input source format(DSD/PCM)
Sample frequency and quantization accuracy
Mute
Bronze spikes
It could precisely adjust the level of the machine as a part of suspension system.
Warning:
The apparatus could memorize the volume of the last status. In order to avoid damaging the
drivers by the sudden high volume, please turn down the volume before switching off or switching
the input source.
4
Coaxial 44.1k PCM
30.0dB

Rear panel
IEC outlet
Please use the apparatus according to the specifications of the voltage/frequency and fuse.
DIGITAL IN
COAXIAL（RCA)；HDMI；USB；AES／EBU（XLR);Optical
PRE OUT
Through the terminal before the level signal transmission to the level or ultra-low sound box, can be
used as independent with the front-end decoder
Pre-amp signal could be transmitted to Amp. or subwoofers by this terminal, and could be used as a
independent decoder with pre-amp.
SPEAKERS OUTPUT
Could be connected to the speakers by banana or spade plugs
Warning
Although MODEL ONE has a speaker protective device, it still could lead to the permanent
irreparable damage to the amplifier in individual cases, such as speaker output terminals in
short-circuited state at a high volume. As a result, touching of the positive and negative
speakers wire is prohibited.
L SPEAKERS OUTPUT R SPEAKERS OUTPUT
IEC outlet
DIGITAL INPRE OUT
5

Remote Control
Up and down button：Control the volume by press up or down。
Left and Right buttons：Select the input source when used with the Menu button.
MENU：Press this button when you want to switch the input source, then press left or right to select
the source.
Mute:Volume could be turned down 20dB when press it, and back to normal by press it again.
Operating the Remote control
•Point it to the front panel of the MODEL ONE When using the remote control . Make sure there are
no obstructions between the Model One and remote control , such as furniture. The interference of
Light, fluorescent and plasma video displays may affect normal operation of the remote control.
•The effective distance of the remote control is about 5 meters, depending on the lighting conditions
•You can use the remote control toward to the MODEL ONE within 45°angle on both sides.
• The Valid range of the remote control will be weakened when the MODEL ONE is placed behind a
tinted glass.
• If intermittent failures happen when using the remote control, please replace old batteries with new
batteries.
Mount the battery
A 3.0V Br2032 or CR2032 lithium-ion coin cell will be attached to the Remote Control.
To mount the battery, please use a coin into the groove then rotate to the left for opening the battery
cover, then mount battery with correct polarity, then put the battery cover back and turn right to
tighten it.
MENU
MENU
Mute
Left and Right buttons
Up and down button
Open
Close
6

1 . Based on the Latest 32 bits Xmos and PCM/Native of Exx-Sabre DSD Solution
2.USB audio class 2.0 interface supports up to 32bit 384khz PCM decoding
3. Support decoding for Native DSD64/ 2.8Mhz，DSD128/5.6Mhz ，DSD256/11.2Mhz
4.1ppm Ultra-high-precision dual-clock TCXO
5.Ultra-low jitter clock to 0.01UI(p-p)
6.Support Audio class 2.2 asynchronous drive at Windows
7. Native DSD及DSD audio over USB，Dop Mode
8. Dual ESS9018 DAC design with 8-channel parallel mono output mode
9. Digital CPLD logic signal processing technology could deal with all the digital audio input signal
effectively.
10. With former high-level output stage increases the analog volume control system, low distortion,
and support IR infrared volume control
11. The sound effect of Single-ended analog output is consistent with the effect of the symmetric
interface by using the single ended of 22M bandwidth audio output transformer with high CMRR
floating design, which is convenient for users to connect dual amplifiers or high quality sub woofer.
12. Multi digital input: HDMI；USB；AES/EBU；SPDIF，Optical
13. Built-in CPLD logic processor could switch the audio signal and realize the error correction
technology.
14. Clear OLED LCD display with large screen
15. All the audio outputs could protect your terminal equipment by the anti-impact sound switch
design.
16. All the electronic components are working in the stable status due to the hermetic chassis, which
prevents the component and circuits from being corroded by dust and moisture, thus increasing the
service life.
17. The reproduction of the music comes to unprecedented by the shock isolation design of a variety
of materials with a long-term experiment verification.
18. Unique and adjustable bronze alloy spikes
19. The internal audio cables are all 6N OCC customized by Atlas Cables in Scotland.
20. The external terminal are all 75 ohm customized by WBT with bandwidth over 1G
21. Digital and analogue part are independent.
Warning: The apparatus has a 200 hours aging process before it leaves factory, and it could
enter the work state each time after booting 30 minutes. Please feel relieved the use.
7
Characteristic

Pre amp RCA analogue output:
Frequency response： Hz-20Khz -0.1dB；
THD-N：<0.001% @ 1khz/20khz,
SNR：-100dB
output amplitude：1.2V
Output impedance：50 watt
Amplifier Parts：
Output power： 100 watt RMS／channel@8 ohm；160watt RMS／channel @4ohm
Frequency Response ： 20Hz- 20kHz ±0.1dB；3Hz-650kHz -3dB
Slew Rate： 85v /uSec
Dampening Factor： At 100hz 8Ω = 800
THD-N：<0.02% @ 1khz/20khz,100W,8 ;
Digital Part：
receivable sample frequency／bit depth：PCM：16bit44.1khz；24bit 44.1khz，48khz，96khz，
176.4khz，192khz，352.8khz，384khz；
1Bit DSD：DSD56/2.8Mhz；DSD128/5.6Mkhz；DSD256/11.2Mhz
Digital audio input：
HDMI；USB；AES／EBU（XLR）；S/PDIF（RCA）；Optical
Pre amp analogue output：RCA non symmetric
Speakers output：WBT terminal
Power：AC 220V 50Hz
Static power consumption ：25Watt
Maximum power consumption：500
Net weight：30kg
Size：45x43x18.5cm(Width*depth*height)
Package size：71x58x32cm(Width*depth*height)
Gross weight：48kg
20
Ω
Watt
Photos and technical specifications for reference only and are subject to change without notice.
Technical specification