Gilderfluke Sd-25 Configuration & Installation

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Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485
Sd-25 Configuration & Installation
Before the Sd-25 can be used, you will need to load your SoundFiles onto a MMC/Sd flash card, attach a power
supply, speakers, and (optionally) a switch to start the Sd-25. Selecting the operating mode will tell the Sd-25 how you
would like your SoundFiles to be played.
MMC/Sd Card:
Any 3.3 volt Multi Media Card (MMC) or Secure
Digital (Sd) flash memory card
can be used with the Sd-25.
Starting with version 1.16 of
the Sd-25 firmware, Sd HC
cards are also supported.
These will be available with
c a p a c i t i e s u p t o 2 0 4 8
GBytes. As of this writing, Sd
cards are available in sizes
up to eight GBytes. These
hold about 2000 typical Mp3
songs for about four days of
continuous
audio playback.
The Sd-25 supports up to
255 SoundFiles in most op-
erating modes. Some modes
support up to 32,767 Sound-
Files.
The flash card should be
formatted ʻFATʼ or ʻFAT32ʼ (it
will probably come that
way). The order in which
the SoundFiles are placed
onto the card is the order
in which the Sd-25 will
play them. You can load
Mp3 and .wav files onto
the card using a flash card
writer attached to a PC or
Mac.
For the Sd-25s to recog-
nize a SoundFile, its FileName must start with an
alphanumeric character, and it must have the exten-
sion of either ʻ.wavʼ or ʻ.Mp3ʼ. If a SoundFile meets
these criteria, the Sd-25 will attempt to play it. If the
Sd-25 canʼt play a SoundFile for any reason, it will
give up after about three seconds.
The Sd-25 will play just about all Mp3 or .wav file
formats. Mp3 bit rates up through 320 Kb/second
are supported. .wav files of up to 48 Kbytes/second
Power Supply
Optional Line
12 to 24 vdc
Level Source
12–24 vdc
Level
Line In
Power
Mixer
Left
Sd-25
Level
Sd-
Left
Audio Repeater
Gilderfluke & Company
Burbank, California
Speakers
Power
(4! to 8!)
12–24
Left
Right
vdc
page 1 of 16 • © February 11, 2014 Gilderfluke & Co. DCM
and sixteen bit are supported. If a file does not play,
it is most often caused by a large (more than 2
MBytes) ʻid3ʼ tag at its front. These typically
hold the album cover artwork for files down-
loaded from iTunes and similar sources.
Since a Sd-25 canʼt use album artwork, it
simply takes up additional storage space,
delays the time it takes a SoundFile
to start playing, and (in the worst
Line In Level Level
Mixer
Sd-
case), will keep a SoundFile from
Right
Right
playing at all. Most audio programs
(including iTunes) have an option to
delete ʻid3ʼ tags.
Speaker Outputs:
The Sd-25ʼs amplifier is a ʻClass-Dʼ
design. Its efficiency is near 90%. If
Trigger
you feed 50 Watts of 24 vdc into the
Inputs
Sd-25ʼs amplifier, you will get al-
A
B
most 50 Watts into your speakers.
ʻLinearʼ amplifiers have only about
Switch 'B'
Switch 'A'
If you are going to run your speakers at high SPLs,
you will need to select speakers that can handle at
least a 125 to 150 Watts or more of continuous
power. Speakers smaller than this may clip or be
damaged if run at too high an output power level
from the Sd-25.
The amplifier outputs from the Sd-25 can be used
with speakers of four to eight ohms impedance. As
with any amplifier, you can series/parallel a number
20% efficiency. Fully 80% of
the power you put into
t h e m g o e s i n t o t h e
heatsink as waste heat. A
50 Watt linear amplifier
would only feed 10 Watts of
power into your speakers,
and 40 Watts into the
heatsink. This makes the
Sd-25ʼs amplifier roughly
equivalent to what would be
a 200 Watt linear amplifier!

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Summary of Contents for Gilderfluke Sd-25

  • Page 1 Sd-25 Configuration & Installation Before the Sd-25 can be used, you will need to load your SoundFiles onto a MMC/Sd flash card, attach a power supply, speakers, and (optionally) a switch to start the Sd-25. Selecting the operating mode will tell the Sd-25 how you would like your SoundFiles to be played.
  • Page 2 The common posi- amplifier, and need to turn down the volume a tad. tive is run to one side of both Sd-25 inputs, and the If you wish to comply with FCC and CE standards...
  • Page 3 Volume Controls: to your amplifier (or amplified speakers), just as you A pair of small trimpots on the Sd-25 are used to set would if you were connecting a CD player. The line the maximum audio output level from the MMC/Sd level outputs are robust enough to drive head- card.
  • Page 4 While playing, it will flicker at The speed at which the Sd-25 counts the SoundFiles is perhaps the best indication of how ‘fast’ a SD flash card is. Fast cards will count up to ten SoundFiles each second.
  • Page 5: Table Of Contents

    Sd-25 Configuration The Sd-25 is configured using a ten position DipSwitch. The cover of the Sd-25 must be snapped off to reach this DipSwitch. A ball point pen or any other pointy object can be used to flip the switches once the cover has been removed.
  • Page 6: Ramps To -18Db

    ʻbʼ input selects. These modes will Files(s): use mode C. support up to 32,767 SoundFiles. DipSwitches one though five = off/off/on/on/off Options: Option #1: DipSwitches #6 and #7 are used to se- page 6 of 16 • © February 11, 2014 Gilderfluke & Co. DCM...
  • Page 7 ʻbʼ will loop Mode 9 / on/off/off/on/off through ALL of the SoundFiles on the Sd-25 Two triggers, with fast and exclusive access to first page 7 of 16 • © February 11, 2014 Gilderfluke & Co. DCM...
  • Page 8 (only on Firm- SoundFiles are played in random order, rather than ware version 1.16 or later): unless DipSwitch #6 or sequentially. DipSwitch #7 are on. page 8 of 16 • © February 11, 2014 Gilderfluke & Co. DCM...
  • Page 9: On/Off/Off/Off/On

    SoundFile. these four modes, SoundFile requests made through the serial port will be stored up to ten deep, This mode divides all of the SoundFiles into two page 9 of 16 • © February 11, 2014 Gilderfluke & Co. DCM...
  • Page 10: On/On/On/Off/On

    The background looping SoundFile will start playing ware version 1.16 or later): unless DipSwitch #6 or as soon as the Sd-25 is powered up. Even if the ʻno DipSwitch #7 are on. stepʼ switch is ʻonʼ (DipSwitch #9), the background Option #6: DipSwitch #6: (Firmware version 1.16...
  • Page 11: On/Off/Off/On/On

    (in binary) starts the requested SoundFile playing. Option #2: The one SoundFile that is selected will loop as long as the input stays active (only on Firm- page 11 of 16 • © February 11, 2014 Gilderfluke & Co. DCM...
  • Page 12 ʻstatusʼ output only goes active when it is playing a ʻonʼ, the background SoundFiles will be played in a triggered SoundFile. Random order. Even if the ʻno stepʼ switch is ʻonʼ page 12 of 16 • © February 11, 2014 Gilderfluke & Co. DCM...
  • Page 13 SoundFile is already playing. This switch is normally used in application where the SoundFile is triggered by a motion detector or guest triggered button. Motion detectors and user oper- page 13 of 16 • © February 11, 2014 Gilderfluke & Co. DCM...
  • Page 14 When the input factory-only option, as the case must be modified to ʻopensʼ, the SoundFile will complete playing nor- accommodate the Sd-RS/422ʼs RJ-12 connector. mally. page 14 of 16 • © February 11, 2014 Gilderfluke & Co. DCM...
  • Page 15 Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485 The serial port on a Sd-25 runs at a fixed rate of you want to be played. Example: to play SoundFile 9600 baud, n, 8, 1 (unless it is in one of the IR 1, send ʻp01ʼ.
  • Page 16 I the undersigned, hereby declare that the equipment specified above conforms to the above directive(s) and standard(s). Place: Burbank, California Signature: (signed) Date: August 1, 2006 Full Name: Doug Mobley Position: page 16 of 16 • © February 11, 2014 Gilderfluke & Co. DCM...

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