TacT Audio S2150, M2150 User Manual
Owner ’s Manual
M2150 / S2150
True Digital Amplifier
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WARNING
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO
NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION
RISK OF ELECTRIC
SHOCK DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK,
DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS
INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
The exclamation point within an equilateral triangle is intended to alert
the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.
The lightning with arrowhead symbol within an equilateral triangle is
intended to alert the user to the presence of “Dangerous Voltage”
within the product’s enclosure that maybe of sufficient magnitude to
constitute a risk of electrical shock to a person.
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Important Safety
Instructions
1. Read these instructions entirely before installing or operating this equipment.
2. Keep these instructions.
3. Heed all warnings.
4. Do not use this equipment near water or allow it to become wet.
5. Do not block any ventilation openings. Install in accordance with the
manufacturer’s instructions.
6. Do not install near any heat sources such as radiators, heat registers, stoves, or
other appliances (including amplifiers) that produce heat,; doing so may
damage the unit and present a fire hazard.
7. Do not defeat the safety purpose of the polarized or grounding-type plug. A
polarized plug has two blades with one wider than the other. If the provided plug
does not fit into your outlet, consult an electrician for replacement of the outlet to
one that is polarized. To protect against electrical shock, match the wide blade
of the polarized plug to the wide slot in the outlet and fully insert the plug.
8. Protect the power cord from being walked on or pinched, particularly at plugs,
convenience receptacles, and the point where they exit the equipment. Do not
use this unit with a damaged cord or plug.
9. Only use attachments/accessories specified by the manufacturer .
10. Unplug this equipment during lightning storms or when unused for long periods of
time.
11. Refer all servicing to qualified service personnel.
1. Always unplug the unit from the electrical outlet before cleaning.
2. Do not use abrasive cleaners. Simply wipe the exterior with a clean soft cloth. A
small amount of nonabrasive cleaner may be used on the cloth to remove
excessive dirt or fingerprints.
CAUTIONCAUTION
“Note” symbol
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Cleaning and
Maintenance
The >note< symbol indicates information very useful or essential to daily
operation.
Acknowledgments
© 2003 T act Audio Corporation. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any
means, electronic, mechanical, photocopying or other wise, without the prior
written consent of the Tact Audio Corporation.
The information contained in this document is subject to change without
notice.
Registration
IMPORTANT!
Please record your serial number here for future reference. Y ou will need this for
future upgrades or should you ever require service on your M/S 2150.
M/S 2150 serial number: _____________________
Optional modules installed:
ADC analog input :__
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Table of contents
Safety instructions 4
Acknowledgments/Registration 5
Unpacking the m/s 2150 7
Introduction 8
M/S 2150 Connections 9
Front Panel Controls 1 5
Remote Control 1 6
Front Panel Display 1 8
Main screen 18
MAIN menu 18
Saving Menu Settings 18
DELA Y menu 19
LEVEL menu 19
ADC menu 20
CRO menu 2 0
TRIG menu 21
DISPL menu 21
OPT menu 22
InOut menu 23
POL menu 23
REM menu 2 4
COMM menu 24
ADDR menu 2 5
LOCK menu 25
GAIN menu 26
CAUTIONCAUTION
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TacT M/S2150 Software 27
Connect your M/S2150
to your Computer 2 8
Specification 29
Unpacking the M/S 2150
Carefully remove the M/S2150 and accessory kit from the carton and check for
shipping damage. Contact both the shipper and TacT Audio immediately if the unit
shows any sign of damage from rough handling. All TacT Audio equipment is carefully
inspected before leaving our factory .
KEEP SHIPPING CARTON AND PACKING MATERIALS for future use or in the
unlikely event that the unit needs servicing. If this unit is shipped without the original
packing, damage could occur and void the warranty .
Accessories
Operating voltage
Y ou should find the following items in the accessory kit:
- one AC mains cord
- RJ1 1 data cable
- RJ11-to-RS232 adapter
- 15’ RS232 cable
- CD-rom with software
- remote control
- 2 AAA batteries
- one manual
The 2150 amplifier is configured for either 110 or 220/240 volt operation. The operating voltage is clearly marked on the outside of the box and also on the rear panel
beneath the AC mains connector .
BEFORE CONNECTING THE POWER, MAKE SURE THA T THE LABEL INDICA TING THE VOL T AGE MA TCHES THE VOL TAGE FOR YOUR COUNTR Y
The 2150 has three operating modes:
- OFF AC mains power is cut off, either via the front
panel mains switch, or by unplugging the amplifier from
the wall outlet.
- ST ANDBY The unit is powered but all outputs are muted and the
display is off. The amplifier uses very little current and
is “idling” or “sleeping”. Use the remote “ST ANDBY”
button to toggle between ON and ST ANDBY.
- ON Everything is powered and ready to use.
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Introduction
Congratulations on your purchase of your M/S 2150. Y ou have now acquired the most
advanced stereo amplifier ever developed!
How does it work?
The digital input is taken to the central processor where it is reformatted into a
pulse width modulated signal of extreme precision. The pulse rate is measured at
precisely 384,000 pulses per second. Each pulse can have 256 different widths,
with the narrowest pulse being a mere 10 nanoseconds wide. The clock frequency
therefore is 98 MHz. The central processor uses proprietary patented algorithms
(Equibit) to arrive at exactly the right combination of pulse widths produce a highly
accurate waveform. This is the most fundamental departure from conventional amplifiers. TacT defines the waveform mathematically - we are not trying to follow or
emulate a waveform by using feedback or feed-forward.
Once the decision of the duration of the pulse is made the central processor controls FET-switches at the output with extreme precision. Voltage and current are
drawn from the power supply and fed to the speakers.
The level of playback is controlled by adjusting the voltage of the power supply . As
this voltage is switched directly to the speakers, it is of paramount importance that
the power supply be totally free of ripple and noise. For TacT digital amplifiers, a
switch mode power supply of extreme precision with ripple rejection of more than
135 dB has been developed. At full volume (volt age) the TacT M/S2150 delivers 58
volts, equivalent to 150 Watt s into 8 ohms. To reduce the volume the volt age of the
power supply is reduced. This means that the volume control is no longer part of an
active circuit.
CAUTIONCAUTION
Why hasn’t anybody
thought of it before?
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Features:
Why has this not been done before? - Well, try to switch 58 volts DC 384,000
times per second without creating even a whisper of noise at a distance of 1" from
the tweeter! Only in the past few years has it been possible to create a fully digital
“amplifier”.
- Ultra high precision DA conversion
- Upsampling to 384,000 Hz before conversion
- Full resolution at -30 dB
- Software upgradeable DSP section
- DSP-based 48 bit internal electronic crossover (in bi-amped mode)
- 192kHz/24bit AD converter
- Digital pre-amplification with 24-bit resolution at a playback level of -39 dB!
- Output of 2x300W into 4 Ohm load, with extreme load tolerance
- NO feedback or feedforward locally or globally is utilized in the signal path
M/S 2150 Connections
Digital input
The 2150 amplifier has 5 digital inputs:
- three RCA (S/PDIF) ( D1, D2, D3)
- one AES/EBU (XLR) (D4)
- one T osLink (S/PDIF) (D5)
All of the digital inputs support PCM audio data with sampling rates from 32kHz to
96kHz /16-24 bits, however , the AES/EBU and RCA/coaxial inputs support up to
192kHz.
Digital Input Section
Analog input
(optional ADC module)
The 2150 amplifier has 3 stereo analog inputs whith the optional ADC module installed:
- two analog stereo single ended (RCA) (A1, A2)
- one analog stereo balanced (XLR) (A3)
NOTE: A/D conversion is always performed at 24-bits/192kHz.
Analog Input Section
NOTE: The optional ADC module is required for analog inputs.
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