KB1003: SDH164D with Two SP53188B Speakers

This article was last updated on Nov. 12, 2013, 7:58 a.m. | Print Article | Leave Feedback

Sound Decoder:   SDH164D SoundFX

Wired Mobile Decoder for HO Locomotives

 

2x8rect.jpg

Speaker:Two SP53188B 53mm x 18mm x 14mm

8 Ohms 0.5W  Rectangular Box

These two 8 ohms are wired in series.

 

Master Volume: CV58= 9 to 15,   Diesel CV60 = 1,

Bell CV141= 64 Max.,   Horn CV142= 64 Max.

 

 

 

         Diesel Horn

 

 

    880Tone Sine Wav.

 

  Horn & 880 Hz together

 

Factor

 

 

dB@4'

CV58

MtoP

 

dB@4'

CV58

MtoP

 

dB@4'

CV58

MtoP

 

x 0.71

 

 

71

15

 4.15

 

67

15

 4.30

 

71

15

4.30

 

3.05

Vrms

 

70

12

 4.10

 

66

12

 4.25

 

 Each 0.5 W Speaker is O.K.  

 

16 Ohm

Load

 

68

9

 3.95

 

64

9

 4.20

 

 +0 dB

 0.55

x 1.0 =

 

0.55

 Watts

 

The Generic Steam Diesel Scheme_38a  download by a PR3, and the Bell is replaced with a Tone880Hz.wav

 

The dB@4' by Bob Frey with a SOUND LEVEL METER  Range:  40 dB to 85 dB                  9 Aug. 2012

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