KB998: SDH164 with two SP26158B Rectangular Speakers

This article was last updated on Nov. 12, 2013, 1:28 p.m. | Print Article | Leave Feedback

Sound Decoder:  SDH164D SoundFX

Wired Mobile Decoder for HO Locomotives

image002.jpg

Master Volume: CV58=9 to 15, Diesel CV60=1, Bell CV141=64 Max., Horn CV142=64 Max.

 

Speaker: Two SP26158B Rectangular 26.5mm x 15.5mm x 9mm, 8 Ohms 0.5W

Compact Box, Speaker with enclosure & wires.  Speakers are wired in series.

 

 

         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

 

 

67

15

 4.20

 

66

15

 4.30

 

67

15

4.30

 

3.05

Vrms

 

66

12

 4.10

 

65

12

 4.25

 

 Each 0.5 W Speaker is O.K.  

 

16 Ohm

Load

 

65

9

 3.95

 

64

9

 4.15

 

 +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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