Lindemann musicbook 50 User manual

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www.lindemann-audio.com
Listen. Relax. Enjoy.
User manual

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Table of contentsWelcome
Congratulations on your purchase of this device and thank you for choosing
a LINDEMANN product. We hope you enjoy listening to music during long
evenings with your favorite recordings. With the musicbook series, you
have chosen one of the most technologically advanced and best-sounding
audio systems. We develop and manufacture our equipment in Germany
and have put all our passion and over 20 years of experience into this ex-
traordinary product that leaves no wishes unfullled in terms of sound
quality. Discover a new quality of music reproduction that easily lls large
rooms and puts singers within reach in your living room. Enjoy listening!
Your LINDEMANN team
This product complies with the directives 2006/95/EC (Low Voltage Directive), 2004/108/EC
(EMC Directive), and 2009/125/EC (ErP Directive). ©2013 Lindemann audiotechnik GmbH
Scope of delivery 4 ⠸
Front view 5 ⠸
Rear view 6 ⠸
Connections 7 ⠸
Technical
specications
8⠸

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Important safety information
Read this user manual carefully.
Carefully observe all NOTES. The manual is designed to help you to prop-
erly use your new Lindemann product so that you can enjoy all its fea-
tures. Keep this user manual for future reference.
• Before connecting the device, check to see if your power supply matches the
values specied on the type plate. The type plate is located on the bottom of the
device.
• When connecting the device, use the included power cord or another appropri-
ate power cord. Operation without protective grounding is not permitted and is
dangerous.
• Connect the device with a proper power socket and route the cable so that it can-
not be crushed or kinked. Make sure that the power cord remains undamaged
and constantly accessible.
• To prevent re or electric shock, do not expose this device to rain or moisture.
The device must not be operated outdoors. Protect the product from dripping or
splashing uids, and do not place any objects lled with water (such as vases) on
the product or in its vicinity. As with all electronic devices, liquids should never
be allowed to penetrate into product.
• Do not make any changes to the product or its accessories. Unauthorized chang-
es may compromise safety, regulatory compliance, and proper function of the
device. The warranty is voided in such cases.
• Do not expose the device or the IR remote control to extreme heat, including di-
rect sunlight and re. Allow waste heat generated during operation to dissipate
freely. Never operate the device in closed cabinets or near heat sources such as
radiators or stoves.
• Set up the device so that the back of the device with the power switch is always
accessible. Do not use this device unattended. If you will not be operating the
device for an extended period of time, turn it o using the power switch on the
back or unplug the power cord. If you notice smoke or a burning smell during
operation, discontinue using the device immediately by turning o or unplugging
the power cable from the power socket.
• To clean the device, unplug the power cord and clean the surface with a dry cloth
or with a little glass cleaner. Make sure that the device is completely dry before
you reconnect it with the power cord. Never use solvents (such as acetone or
lacquer thinner) to clean the device.
• Have repair and maintenance work performed by qualied customer service
personnel only. Do not try to repair the device yourself. Do not remove or open
the device cover; otherwise, you could come into contact with dangerous volt-
ages or be exposed to other hazards. Contact your Lindemann dealer or Linde-
mann audiotechnik directly to receive qualied customer service.
• Electronic equipment is not household waste but must be disposed of properly
in accordance with Directive 2002/96/EC on electrical and electronic waste. At
the end of its useful life, dispose of this device at a designated public collection
point.

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Scope of delivery
⠸
musicbook
⠸ 50
musicbook 50 Class-D power amplier. The musicbook 50 is a fully balanced Class-D power amplier
for operating loudspeakers.
⠸Power cord
Power cord with two-pin grounded plug (2 m) for connecting to the power socket.

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Front view
⠸
Error indicator LED
Lights up red in case of error; the reliably operating protection circuits monitor the
amplier output and protect the loudspeakers from damage.
⠸
Standby LED
The amplier lights up constantly in yellow and pulsates in operation. A highly sensitive signal detector
switches the device on and o automatically. This avoids unnecessary energy consumption.

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Rear view
Loudspeaker ports for connection of the power amplier to the speakers.
We recommend the use of speaker cables with hollow safety plugs
(4 mm diameter).
⠸
Balanced (XLR) and unbalanced (RCA) inputs for connecting a network player
or USB DAC. Non-magnetic, gold-plated RCA sockets for optimum signal
transfer. Note: The inputs cannot be used simultaneously.
⠸
Power switch for completely disconnecting
the musicbook 50 from the power supply. ⠸
IEC power connector
for connecting to the power supply. ⠸

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Connections
⠸
Connection:
The musicbook 50 is a fully balanced Class-D power amplier and should therefore
be used with balanced signal cables. They require cables with hollow saftety plugs
(4 mm) for connecting the loudspeakers. The musicbook 50 is an extremely audiophilic
amplier which shows its full sound potential with high-quality two-way loudspeakers
or small to medium-sized standing loudspeakers. Impedance values of the loudspeaker
of 6–8 ohms are ideal. The amplier monitors its input with a highly sensitive signal
detector and automatically switches on when music is played. Discover how uncompli-
cated perfect music playback can be!
musicbook⠸ 50 with musicbook⠸ 20/25
+ passive loudspeakers
musicbook 50
musicbook 20/25

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Active input
The musicbook 50 automatically detects which input is in use. Always connect only one
of the two inputs (RCA or XLR) with a signal source. If both inputs are connected with
active signal sources, the amplier always connects the XLR input through. Note: If you
want to change the input during operation, you need to switch o the device using the
power switch on the back and then switch it on again after changing the cable. The time
between switching o and switching back on must be at least 10 sec.
Automatic signal detection
The musicbook 50 is equipped with intelligent consumption management. Immediately
after the amplier is switched on, it goes into idle mode (2.5 W consumption). When a
music signal is detected on the input, the amplier switches from idle mode to active
mode. If no music is played for 30 min., the amplier switches back to idle mode.
After an additional 30 min. without music (a total of 60 min.), the amplier switches
into standby mode (0.45 W consumption).
Circuitry principle
Fully balanced stereo power amplier in Class-D technology based on a circuit concept
protected by several patents, the UCD amplier. With all-discrete circuitry and careful
ne-tuning, the technology fullls its full sonic potential. Highly detailed and dynamic,
forceful and with the nest resolution of high tones. Extremely low power consumption
and low heat generation due to high eciency. The ideal amplier for easy
listening in normal residential spaces.
Technical specications of the musicbook 50
Overview

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Technical specications of the musicbook 50
Protection circuits
• Direct current (DC) on the output: Power supply switches o.
• Excess temperature: Amplier mutes until the temperature drops by about 10°C.
• Output current limit: Amplier mutes for about 0.25 s.
Switching threshold 6 A peak. In case of persistent overload, the amplier
switches on and o several times in succession.
Automatic switching
• Switching threshold of input signal: approx. 0.5 mV.
• Idle mode: Power supply switched on, amplier switched o.
Consumption 2.5 W.
• Standby mode: only the standby power supply is active. Consumption 0.45 W.
• Active mode: Power supply and amplier switched on. Consumption depending
on volume averages 10–20 W, 200 W maximum in peaks.
• Switch-on times: approx. 2 s from idle to active mode; approx. 8 s from standby
to active mode.
• Switch-o times: after 30 min. the amplier returns to idle mode, and after
another 30 min. it switches to standby mode.
• Supply voltage range: 90–264 V, 50–60 Hz.
• Dimensions: 280 x 220 x 65mm (W x D x H).
• Weight: 3.10 kg.
• Power consumption: Power consumption: 0.45 W standby mode, 2.5W idle mode,
200 W maximum.
Power ampliers
• XLR inputs: analog line-level inputs with an input impedance of 10 kilohms.
• RCA inputs: analog line-level inputs with an input impedance of 5 kilohms.
• Loudspeaker outputs: Hollow safety plugs (4 mm) for connecting loudspeakers
with 4–8 ohms.
• Power output: 100 W into 7 ohms per channel (< 1 min.).
• Maximum output current: 6 A peak.
• Gain: 25.8 dB (20 times).
• Frequency response: 0–36 kHz (-3 dB).
• THD & noise: < 0.05% typ.
(Subject to technical changes! Measurement data are typical values.)
Detailed technical specications
(measuring conditions: 230 V, 50 Hz, 20°C)

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Listen. Relax. Enjoy.
USB audio music player with
DSD playback
USB audio music player with
DSD playback & CD drive
network music player & CD drive

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www.lindemann-audio.com
Lindemann audiotechnik GmbH
82152 Krailling
Germany
Tel.: [phone]
Fax: [phone]
[email protected]