Owner manual

ManualsBrandsGilderfluke&Co ManualsAudioSd-25 Audio Repeaters w/Amplifier

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

capacities up to 2048

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

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

case), will keep a SoundFile from

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

you feed 50 Watts of 24 vdc into the

Sd-25ʼs ampliﬁer, you will get al-

most 50 Watts into your speakers.

ʻLinearʼ ampliﬁers have only about

20% efﬁciency. Fully 80% of

the power you put into

them goes into the

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!

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

Gilderﬂuke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485

Audio Repeater

Sd-25

Gilderfluke & Company

Burbank, California

Left Right

12–24 vdc

Power

12–24

vdc

Running

Status

Level

Sd-

Left

Line InLevel Line In Level Level

Sd-

Right

Trigger

Inputs

Speakers

(4! to 8!)

Mixer

Right

Mixer

Left

Power Supply

12 to 24 vdc

Optional Line

Level Source

Switch 'B'

Switch 'A'

Summary of content (16 pages)

PAGE 1
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. and sixteen bit are supported. If a file does not play, Any 3.
PAGE 2
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485 of speakers, so long as the impedance remains switch. This can be a pushbutton, motion Sd-25 Sd-10 within limits.
PAGE 3
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485 Volume Controls: A pair of small trimpots on the Sd-25 are used to set the maximum audio output level from the MMC/Sd card. The operating modes which ramp the audio up and down can never exceed the level set by these pots. An additional pair of pots is used to set the levels for the ʻmixerʼ inputs. With the case top on or off, you can adjust these pots using a small ʻtrimmerʼ screwdriver.
PAGE 4
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485 a high rate of speed. The faster the flicker, the higher your SoundFileʼs bit rate. When the Sd-25 plays a triggered SoundFile or a timed announcement (using modes 16, 17 or StoreCaster mode) the status output will go active. This is wired into an input on the Sd-10 which has been configured to duck, or fully mute its audio output.
PAGE 5
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485 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. Do not use a knife or other sharp object, as it might damage the switch.
PAGE 6
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485 Options: Option Number Option #1 Option Name What it Does Audio Ramping Speeds Immediate Ramping Speed Fast Ramping Speed Medium Ramping Speed Slow Ramping Speed DipSw. #6 = Off DipSw. #6 = On DipSw. #6 = Off DipSw. #6 = On DipSw. #7 = Off DipSw. #7 = Off DipSw. #7 = On DipSw. #7 = On Ramps to Muted Ramps to -33dB Ramps to -18dB Ramps to -9dB DipSw. #6 = Off DipSw. #6 = On DipSw.
PAGE 7
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485 lect the speed at which the audio ramps in/out. Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially. If less than 255 SoundFiles are loaded on the Sd-25, then the randomizer checks off each SoundFile as it is played. It will not play the same SoundFile a second time until it has played all the other SoundFile files.
PAGE 8
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485 (SoundFiles 1 through ??) as long as the input stays active. Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially. Option #9: DipSwitch #9: Unsteppable. When on, additional start commands to the Sd-25 will be ignored until the currently playing triggered SoundFile has completed.
PAGE 9
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485 Option #9: DipSwitch #9: Unsteppable. When on, additional start commands to the Sd-25 will be ignored until the currently playing triggered SoundFile has completed.
PAGE 10
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485 evenly sized ʻPlayListsʼ. Input ʻaʼ triggers SoundFiles from the first half, and input ʻbʼ triggers SoundFiles from the second half. The first ʻPlayListʼ starts at the second SoundFile. The background looping SoundFile will start playing as soon as the Sd-25 is powered up.
PAGE 11
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485 or later) When on, the SoundFile will only play once (no looping). Option #7: DipSwitch #7: (Firmware version 1.16 or later) When on, input ʻaʼ will loop SoundFile one as long as the input stays active. Input ʻbʼ loops SoundFile two as long as the input stays active. Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially.
PAGE 12
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485 ware version 1.16 or later): unless DipSwitch #6 or DipSwitch #7 are on. Option #6: DipSwitch #6: When on, the SoundFile will only play once (no looping). Option #7: DipSwitch #7: When on, input ʻaʼ will loop through SoundFiles 1 through ?? as long as the input stays active. Short pulses on the ʻaʼ input tend to play sequentially, even if DipSwitch #8 is on.
PAGE 13
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485 (DipSwitch #9), the background SoundFile can be stepped on by a trigger to play a SoundFile from the ʻaʼ or ʻbʼ inputs. The Sd-25ʼs ʻstatusʼ output only goes active when it is playing a triggered SoundFile. There must be at least three SoundFiles on the Sd25 for this mode.
PAGE 14
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485 ated buttons can give multiple triggers. If this switch was ʻoffʼ, would cause the SoundFile to re-trigger. With it ʻonʼ each triggered SoundFile will play to completion. ʻBackgroundʼ looping SoundFiles, like those in modes 16, 17 and 19 ignore this switch. Even if it is ʻonʼ the ʻbackgroundʼ SoundFile will be stepped upon if a trigger input comes in via ʻaʼ or ʻbʼ inputs.
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 9600 baud, n, 8, 1 (unless it is in one of the IR Modes). Adapters to attach this port to a PC or Mac are available from Gilderfluke & Company. It can also be controlled from a Gilderfluke & Co. Br-SDC/09 (a null modem cable must be used to flip pins #2 and #3 when used with a Br-SDC/09).
PAGE 16
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485 FCC and CE Compliance: Sd-25s which are revision 1.6 or later have been tested to comply with FCC and CE requirements. Revisions earlier than this may have passed testing, but were not certified at the time of manufacture. Because Sd-25s are low voltage DC devices, neither UL or CE require safety testing.