leema-acoustics STREAM User manual

HANDBOOK
Leema Acoustics Stream Multi-DAC CD Player
STREAM

WARNING: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. Do not use in
damp conditions. Do not place objects containing liquids, drinks or vases for example, on the unit.
Do not open the cabinet. Refer to qualified service personnel only.
WARNING
CLASS 1
LASER
PRODUCT
This appliance is classified
as a CLASS 1 LASER
product. Do not open the
cabinet as the laser beam
used in this appliance is
harmful to eyes.
Disposal of Electronic Equipment in the European Union and
other countries with collection procedures:
The wheelie bin symbol on this product indicates that it shall not
be treated as household waste. It should be disposed of via a
collection point for the recycling of electrical and electronic
equipment.
Mains Supply Voltage: This unit may be set to operate on 220-240 VAC or 110-120 VAC 50/60 Hz by inserting the rear
panel fuse holder in the appropriate orientation. This setting should only be changed by an authorised service agent as an
inappropriate setting will damage the unit. Before use, check that the unit’s voltage setting displayed above the IEC mains
inlet matches the mains power supply in your area.
Disconnect the mains supply if the unit will not be used for a long period of time.
Cleaning: Disconnect the unit from the mains supply. Clean the cabinet, front panel and lid with a soft cloth slightly
moistened with a weak detergent solution or clear fluid glass cleaning product. Ensure the unit is fully dry before re-
connecting the mains supply. Do not re-connect the supply with damp hands.
Do not use any abrasive or solvent based cleaning products as these will damage the finish.
Placement: Operate the unit on a flat and level hard surface. To prevent the build-up of heat inside the player, place the
unit in a location with adequate ventilation and do not cover the unit. Do not locate the unit near heat sources such as
radiators or in direct sunlight. Do not move the player with a disc inside. This disc may be damaged or may fall inside the unit.
Condensation: If the unit is moved from a cold location to a warm room, condensation may occur on the laser optics
causing a temporary malfunction. The unit will return to normal operation after a short period of time.
3
STREAM

About Discs
Only handle discs by the edge. Do not touch the silver disc surface. If a disc requires cleaning, wipe it with a soft cleaning
cloth moving from the centre outwards. Do not wipe the disc in a circular motion. When not using discs, store them in a case.
Never place the disc on a surface out of it’s case as the disc will be permanently damaged. A disc damaged by marks and
scratches may no longer play. Even if it does play, the audio quality may be degraded.
Red Book Standard
Stream is a ‘Red Book' standard CD player and as such will play any genuine red-book disc. These discs will normally carry the
Compact Disc logo. Some discs have been manufactured using various forms of copy protection such as Cactus and the
Sony BMG system. These discs, which do not normally carry the registered logo, may produce erratic behaviour when played
in Stream and have been the subject of much controversy. More information on this subject is available on various websites
such as:
http://ukcdr.org/issues/cd/bad/
Even if a copy protected disc does play, the audio quality may be compromised. Try to avoid purchasing this
type of disc wherever possible.
Discs That Cannot Be Played: Stream is designed to play audio CDs only. CD-R discs optimised for audio use and
some ‘silver’ CD-R discs may also play correctly. Non-silver CD-R discs will not play. The player will play all discs fully
conforming to the Philips red book standard but may not play discs with some types of copy protection.
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STREAM Discs

Table of Contents STREAM
Table of Contents
WARNING - Safety Advice ............................................................................................................................................... 3
Mains Supply Voltage .................................................................................................................................................... 3
Cleaning ....................................................................................................................................................................... 3
Placement .................................................................................................................................................................... 3
Condensation ............................................................................................................................................................... 3
About Discs ................................................................................................................................................................... 4
Red Book Standard ........................................................................................................................................................ 4
Discs That Cannot Be Played ......................................................................................................................................... 4
General Information - Conformity Statement, Environmental, Made in the UK ................................................................... 6
Contact Us .................................................................................................................................................................... 6
Introduction .................................................................................................................................................................. 7
Overview ....................................................................................................................................................................... 8
LIPS ................................................................................................................................................................................ 8
Making a LIPS connection ............................................................................................................................................. 8
Front & Rear Panels ........................................................................................................................................................ 9
Remote Control ...................................................................................................................................................... 10-11
Front Panel Operation ................................................................................................................................................. 12
Connections .......................................................................................................................................................... 12-13
What is LIPS? ................................................................................................................................................................ 14
LIPS Specifics ............................................................................................................................................................... 14
LIPS Packets ................................................................................................................................................................. 14
LIPS Protocol Headers .................................................................................................................................................. 15
Stream Specific LIPS Commands ................................................................................................................................. 16
Infra-red Codes ........................................................................................................................................................... 16
Audio Specifications ................................................................................................................................................... 17
5

General
STREAM
6
Declaration of Conformity
We hereby declare that the product to which this declaration relates, is in conformity with the following standards:
EN60065, EN55013, EN55020, EN61000-3-2, EN61000-3-3. The product design also follows the provisions of 73/23/EEC,
89/336/EEC and 93/68/EEC Directives.
Environmental Issues
Leema operates a 100% recycling program. All waste materials generated as part of the manufacturing process at Leema’s
headquarters are recycled via a licensed specialist company.
Although Leema electronics operate in standby mode as opposed to being fully switched off, the power drain has been
optimised to a negligible level. Contrary to popular audiophile practice, we do not recommend leaving our products
permanently powered. All Leema products have been designed to attain full operational specifications and sound quality
within a few minutes of switch-on.
Made in the UK
Leema electronics are designed and manufactured in the UK. This includes all metalwork and packaging.
Contact Us
Leema may be contacted via our website: www.leema-acoustics.com or by telephone: [phone]

Introduction
Congratulations on your purchase of a Leema Stream Multi-DAC CD player.
The Leema range of products has been painstakingly engineered in the United Kingdom to offer genuine state-of-the-art
performance.
Partnered with suitable equipment, Leema products will provide audio performance far beyond that of their competitors
and will equal or better the performance of products costing many times their purchase price.
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A notable feature of this product is the MD multi-DAC converter technology. In the Leema Stream, this topology uses sixteen
(eight stereo) 24bit/192KHz digital-to-analogue converters in a parallel-multiple balanced configuration. The net result is a
CD player with analogue-like midband and high frequencies having great space and depth without the usual harshness
associated with digital recording formats.
Purchasers should read and follow this instruction manual, paying particular attention to the user installation and safety
advice section.
This manual has been written to enable you to achieve the very best performance and maximum listening pleasure from
your investment.
We wish you many years of pleasurable listening... Move Your World!
With best regards
The Leema Team.
Introduction STREAM
7

Overview
STREAM
8
Overview
Stream is more than a CD player. By the use of our LIPS interface technology, Stream may control aspects of the complete
audio system. For example, if a source other than CD is in use, simply selecting play will automatically switch the amplifier to
the CD input and select a default low volume level. Stream may also be fully controlled by LIPS enabling wired integration with
control systems such as Procontrol or Crestron.
TM
LIPS - Leema Intelligent Protocol System
LIPS is a proprietary communication system which enables Leema audio components to talk to each other. A degree of
intelligence is instilled in each unit allowing the units to make decisions based on user requirements and system
configuration. For example, in a multi-channel system, the components understand which of them are required for normal
stereo material and which are required for multi-channel playback. When the user switches between input formats, the units
respond by powering up or down as required. In this way, the system is made much easier to use and energy is not wasted
powering units that are not required. Stream continues this theme and is able to control other units in the family, allowing the
majority of the system to be hidden away if required, in an air conditioned cupboard for example.
Making a LIPS connection
LIPS cables are directional and have one black end and one red. If Stream is controlling other units, the black connector
should be plugged in to either LIPS socket on Stream and the red connector plugged in to the first amplifier component, e.g.
Pulse. If Stream is to be controlled, the black connector is connected to the master device and the red connector is plugged
in to either LIPS socket on Stream.

Front & Rear Panels STREAM
9
Power Inlet & Switch
Ensure that the
voltage indicated is
correct for your area.
This will either be
230VAC or 115VAC.
‘LIPS’ bus connectors
These allow communication
between various Leema
system components.
Unbalanced Audio Outputs
Use phono leads to connect
these outputs to conventional
unbalanced amplifier
Inputs.
Rear PanelRear Panel
Front PanelFront Panel
DIGITAL Outputs
Use a dedicated digital phono
lead to connect this outputs to
a digital input.
IR
Stream
STANDBY
PLAY
LEEMA ACOUSTICS MULTI-DAC CD PLAYER
L-DRI VE
NO USER SERVICEABLE PARTSINSIDE
REFER TO QUALIFIED SERVICE PERSONNEL
DO NOT EXPOSETHIS UNIT TO RAIN OR MOISTURE
DO NOT USEIN DAMP CONDITIONS
THI S UNI T MUST BE EARTHED
CAUTI ON VORSI CHT
REMOVE POWER
BEFORE OPENING VOR DEM ÖFFNEN NETZSTECKER ZI EHEN
PRECI SION AUDI O COMPONENT MANUFACTURED IN THE UNI TED KI NGDOMBY LEEMA ELECTRO ACOUSTI CS LIMITED
240 VAC50/60Hz MAX 60W
COAX
LEFT
RIGHT
FUSE 240VAC:500mAT 120VAC:1AT
SERI AL No. :
WARNING
CLASS 1
LASER
PRODUCT

Remote
STREAM
10
RemoteRemote
1. POWER - The power button toggles Stream between On and Standby. If a
LIPS connection is used, the power status of any other Leema components
connected via LIPS will also be controlled.
2. TRAY - The tray button opens and closes the CD drawer.
3. INPUT -/+ When Stream is connected to a Leema amplifier product via a
LIPS cable, these buttons are used to cycle through the available amplifier
inputs. If LIPS is not used, the buttons have no function.
4. VOLUME -/+ The volume level of a Leema amplifier product may be
controlled from the Stream remote. If a LIPS connection is used, the amplifier
may be out of sight of the remote, in an air conditioned cupboard for
example. If LIPS is not used, the remote will command the amplifier using
infra-red.
5. PLAY - The play button also provides a pause function if the disc is already
running. Tracks may be ‘queued’ by selecting pause and then NEXT/PREV to
queue the required track. Pressing PLAY with the drawer open will close the
draw and initiate PLAY.
6. STOP - Stops playback

Remote STREAM
11
7. PREV - If SCAN is not selected, the PREV button decrements the track selection. If SCAN is selected, PREV becomes SCAN
BACKWARDS (<<) and forces the playback to jump back in units of thirty seconds.
8. NEXT - If SCAN is not selected, the NEXT button increments the track selection. If SCAN is selected, NEXT becomes SCAN
FORWARD (>>) and forces the playback to jump forwards in units of thirty seconds.
9. SCAN - This button toggles between normal play and scan mode. In scan mode, the NEXT and PREV buttons function as
SCAN FORWARD (>>) and SCAN BACKWARDS (<<). During scan operations, playback jumps forward or backward in units of
thirty seconds.
10. MUTE - Leema amplifiers may be muted with this button. Again, it is available in LIPS or infra-red modes.

Front Panel Operation
1. Standby - The Standby button toggles Stream between On and Standby. If a LIPS connection is used, the power status of
any other Leema components connected via LIPS will also be controlled.
Leema L-Drive control
Stream uses a radical new control device called L-Drive. All operational modes may be selected using this one simple
control. L-Drive removes clutter from the front panel while offering rapid track location. This feature is particularly useful to
classical music enthusiasts who frequently access higher numbered tracks.
1. OPEN/CLOSE - To open and close the drawer, press and hold the L-Drive control for around three seconds. If the unit is in
standby, it will power up and open the drawer. The drawer may also be pushed gently to close.
2. PLAY/PAUSE - Pressing the L-Drive control once will start playback. Pressing a second time places the unit in PAUSE.
3. TRACK SELECTION - To select a desired track, simply rotate the L-Drive control until the required track number is displayed.
After a second or so, the track will be selected and playback will start.
4. STOP - To stop playback, double-click the L-Drive device as you would when using a computer mouse.
Connections
Output
Connect the Left and Right outputs to your amplifier CD input using good quality phono-to-phono (RCA) interconnects to
provide maximum audio performance.
Front Panel Operation
STREAM
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SPDIF coaxial digital output
This output provides a transformer isolated standard Sony/Philips digital interface. Use a good quality cable designed for
SPDIF applications. Audio cables must not be used as they will seriously degrade the data stream.
LIPS
The LIPS cables are directional and must be connected the right way round for the system to operate. No harm will be done if
cables are connected the wrong way round, the system will simply not work correctly. The black plug is inserted in to the
sending unit and the red plug in to the receiving unit. The chain will normally be:
Player (e.g. Stream) > Amplifier (e.g. Pulse) > Accessories
If a home automation controller is to be installed, the order would be:
Controller > Player > Amplifier > Accessories
This type of installation can be quite complex and is best performed by a Leema dealer.
In a basic system comprising two audio units, the LIPS cable will be arranged as follows:
Black (Stream) > Red (Pulse)
Connections STREAM
13

The following section is intended for installers, system integrators and third party manufacturers.
What is LIPS?
LIPS or Leema Intelligent Protocol System, facilitates communication between various items in a Leema audio system. It
allows units such as Tucana, Antila, Pulse or Stream to control other items in a chain. Leema’s constellation 5.2 surround
system is a good example, where a Tucana controls a Hydra and Corvus. Key information including volume level, input
selection and power control is passed through the bus enabling other units to operate in synchronisation. Intelligence is
added within each receiving unit, for example, a Hydra installed as part of a surround system ‘knows’ that it won’t be required
when listening to a stereo source such as CD. Therefore, when the Hydra ‘sees’ the CD input, it powers itself down.
Each Leema unit can be controlled via the LIPS bus. Controlling a Tucana externally for example, enables it to be used within
a home automation system.
LIPS Specifics
The LIPS bus is driven by an open-drain output. Leema can supply interface modules as required. The communication
standard follows the common RS232 format of No Parity, 8 data bits and 1 stop bit. The baud rate is 38400.
LIPS Packets
Each communication on the LIPS bus contains a packet of four data bytes as follows:
First a header is sent with a value of 255. This alerts the receivers to incoming data.
Next, a command header is sent. For a volume command, this would be 40. (see later for details).
Next, a value relating to the command is sent. For volume this would be 0 to 248.
Finally a tail byte is sent with a value of 0.
LIPS
STREAM
14

LIPS Protocol Headers For further information, please contact Leema Technical Support.
Value = 20 ID header. This header is private and must not be issued by any controlling software.
Value = 30 This is a general command header. The command values are as follows:
10 = Infra Red control OFF. These commands control the local IR receiver
20 = Infra Red control ON
100 = Power ON
101 = Power OFF
102 = Select Input PHONO
103 = Select Input CD
104 = Select Input TUNER
105 = Select Input AUX
106 = Select Input MULTI 1
107 = Select Input MULTI 2
108 = Select Input AV DIRECT
109 = Select Input TAPE
110 = LED ring ON
111 = LED ring OFF
Value = 40 Volume header. Valid command values are 0(mute) to 248(maximum volume)
Value = 50 Serial Pass Through. When a Tucana, Hydra or Corvus receives this header, the header and value are passed
on up the bus. This enables future expansion options.
Value = 60 This is issued by Corvus. The command value contains the sub filter frequency.
Value = 70 This is issued by Corvus. The command value contains the sub filter slope.
Value = 80 This is issued by Corvus. The command value contains the extract status.
Value = 90 Antila/Stream direct track access. Valid command values are 1 - 99 for tracks 1 - 99.
Value = 100 Spare header for future use.
LIPS STREAM
15

Infra-red Codes
STREAM
16
STREAM specific LIPS commands
Header = 30 (General command)
Command values: 31 = STOP, 32 = PLAY, 33 = PAUSE, 34 = NEXT, 35 = PREV, 36 = Display ON, 37 = Display OFF
Header = 90 (Stream direct track access)
Command value: 1 - 99 representing track numbers 1 - 99. If the track value sent is not available on the current disc,
Stream will report an error on it’s display (Er) and go in to STOP mode.
Infra-red codes
The following codes may be used to program universal remotes:
IR DEVICE = 17 (Stream/Antila specific)
16 = LIPS INPUT INCREMENT, 21 = POWER TOGGLE, 22 = TRAY, 48 = PREV, 49 = NEXT, 50 = PLAY, 56 = STOP, 57 = PAUSE
59 = SCAN TOGGLE, 84 = DISPLAY TOGGLE
For direct track access (as per Sony CD1 format)
32 = num 0, 0 = num 1 ..... 8 = num 9, 39 = +10
The above are used as follows: num, +10, num. e.g. 1,+10,2 = track 12 etc.
In addition to Stream specific codes, the player is able to process amplifier codes for communication via LIPS:
IR DEVICE = 16 (Amplifier, e.g. Tucana etc.)
0 - 6 = INPUTS 1 - 7, 16 = INPUT UP, 17 = INPUT DOWN, 18 = VOLUME UP, 19 = VOLUME DOWN, 20 = MUTE TOGGLE
21 = POWER TOGGLE

Audio Specifications
Typical figures:
Frequency response 20Hz-20KHz: +/-0.3dB
Distortion - 20Hz: 0.005% 1KHz: 0.0008% 20KHz: 0.0008%
IM distortion 19+20KHz: 0.001%
Linearity @ -100dB: +/-0.5dB
Crosstalk @ 10KHz: -100dB
Crosstalk @ 1KHz: -118dB
Signal to Noise ratio (A weighted): 105dB
Output Level: 2.3VRMS for 0dBFS
Jitter 1KHz: 50pS
Jitter total correlated: 350pS
Specifications subject to change without notice.
Audio Specifications STREAM
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Leema Electro Acoustics Limited
Maes-Y-Glydfa, Llanfair Caereinion, Welshpool, Powys, SY21 0HD, UK
Tel/Fax: [phone] email: [email protected] Web: www.leema-acoustics.com