I ask this question of the speaker size in the tender for the one I own I have not taken off the tender shell yet to see and at the moment would not care too. ( maybe later? ).
Since there are more than one size speaker tsunami installs in the Bachmann steam engines I would like to tune the sounds a little finer using "Tsunami equalizer" as can be done according to a couple of pages from this "Tsunami users guide" below. But I don't want to harm a speaker by pushing too many decibels through it.
Sound Programmingare as follows:
CV 128, Master Volume Control Primary Audio Mixer CVs
CV 128, Master Volume Control
Primary Audio Mixer CVs
CV 129, Whistle mixer level
CV 130, Bell mixer level
CV 131, Exhaust mixer level
CV 132, Airpump mixer level
CV 133, Dynamo mixer level
CV 134, Blower mixer level
CV 135, Rod clank mixer level
CV 136, Steam hiss mixer level
Secondary Mixer CVs
CV 137, Coupler Clank mixer level
CV 138, reserved
CV 139, Brake squeal mixer level
CV 140, Brake release mixer level
CV 141, Snifter valve mixer level
CV 142, Johnson Bar/Power reverse mixer level
CV 143, Pop Valve mixer level
CV 144, reserved
CV 145, Blower draft mixer level
CV 146, Water stop mixer level
CV 147, Injector mixer level
CV 148, Coal Shoveling mixer level
CV 149, Wrenches mixer level
CV 150, Oilcan mixer level
CV 151, Grease gun mixer level
CV 152, reserved
Using the Tsunami Equalizer
Tsunami’s built-in equalizer (or “EQ” as the audio guys like to call it) is
much like that you’d on your home stereo system. The equalizer allows you
to selectively cut and boost sound levels by +/-12dB over seven selected
frequency ranges and provides the “ultimate” tone control.
When most people hear about Tsunami’s equalizer, their first reaction is
“Great, now I can really crank up the bass!” What they don’t realize is that the
equalizer is also there to cut out the low frequencies as well.
Every speaker has a limit to the lowest frequency it can efficiently reproduce.
This is determined by a number of factors and in particular, the speaker’s
physical size. To reproduce a low frequency sound at high volume requires
the ability to move a lot of air, and hence a large diameter diaphragm.
On the other hand, the electromagnet at the base of the speaker cone will
react just fine to even the deepest bass. So if we try to drive a low frequency
sound signal thru a small speaker, the speaker still physically reacts to the
signal - we just don’t hear it very well because only a small amount of air is
being pushed about. If we turn up the volume, things will not likely improve much and what’s worse, the speaker cone will eventually be pushed against its physical travel limits resulting in annoying clicking and popping sounds. This is where the equalizer’s ability to “cut” frequencies out becomes important. By removing the inaudible low frequency sound components, the speaker is now able to work more efficiently (i.e. louder) in the audio range it was designed for. EQ Presets Using the equalizer begins with CV 153, the EQ Control Register. This CV may be programmed with any value between 0 and 7. A setting of 0 disables the EQ as if it were never there. Settings 1 thru 6 select a factory preset which tailors the frequency response to several of SoundTraxx’s more popular on-board speakers. The table below shows the presets and their equivalent settings which may be used as the basis for developing your own
being pushed about. If we turn up the volume, things will not likely improve
much and what’s worse, the speaker cone will eventually be pushed against
its physical travel limits resulting in annoying clicking and popping sounds.
This is where the equalizer’s ability to “cut” frequencies out becomes
important. By removing the inaudible low frequency sound components, the
speaker is now able to work more efficiently (i.e. louder) in the audio range it
was designed for.
EQ Presets
Using the equalizer begins with CV 153, the EQ Control Register. This CV
may be programmed with any value between 0 and 7. A setting of 0 disables
the EQ as if it were never there. Settings 1 thru 6 select a factory preset
which tailors the frequency response to several of SoundTraxx’s more
popular on-board speakers. The table below shows the presets and their
equivalent settings which may be used as the basis for developing your own
settings. Custom EQ Settings Finally, a setting of 7 allows you to customize the EQ response using CVs 154 thru 160, each which controls a different frequency band as follows: CV 154, 62.5Hz CV 155, 125Hz
settings.
Custom EQ Settings Finally, a setting of 7 allows you to customize the EQ response using CVs 154 thru 160, each which controls a different frequency band as follows: CV 154, 62.5Hz
Finally, a setting of 7 allows you to customize the EQ response using CVs 154 thru 160, each which controls a different frequency band as follows:
154 thru 160, each which controls a different frequency band as follows:
CV 155, 125Hz
CV 156, 250Hz
CV 157, 500Hz
CV 158, 1KHz
CV 159, 2Khz
CV 160, 4Khz
Sorry about this large spaced posting but copying from a PDF isn't easy and the dog-gone fonts keep going bold when I don't want them to.
Thanks for reading though.
Wadda ya mean I'm old ? Just because I remember gasoline at 9 cents a gallon and those big coal burning steamers.
Embarrassed I am David and I apologize for this thread. Lately I'm jumping to conclusions without thinking properly. You are right for my Tsunami is stripped down and I knew that for it has been posted time and time again about Bachmann factory installed Tsunami decoders.
Guess I'd better stick to the Tsunami sounds I already have for I don't believe it would be worth it to strip out the default Tsunami and buy a TSU 1000 for $119.00 USD
I love sound on my engines and I do remember watching the C&O steamers just about 200 yards from my Grandparents farmhouse ( farmhouse on a hill at least 100 feet above the C&O tracks ) in Lake county Indiana. That particular stretch of rail in our view at farmhouse was a start of a 1 1/2% grade and the start of a very large curve which would continue for the next 2 1/2 miles to Beatrice, Indiana ( small milk and passenger stop ) then level off. I remember watching the big puffs of black smoke from the stack as the engine started the hill.
This was all in the early 1940's through 1952, so this 2-6-6-2 with sound I have really brings back the memories.
Edit: I did pull the tender shell off the 2-6-6-2 and the speaker measures 1 & 1/8 inch in diameter as close as I could measure.
You have an answer on the spkr size and here are the CV's available to you and their defaults. This is from the Soundtraxx website.
http://www.soundtraxx.com/factory/OEM%20pages/Bachmann/HO%202-6-6-2.pdf
You could pull the factory equipped decoder and sell it on ebay, maybe for a good price. It will give the Ranters here, some fodder for another ebay post.
I would leave it as is.
I just received a Spectrum 4-6-0 with factory Tsunami and I run it with a Spectrum 4-6-0 I put a Micro Tsunami into. Not a big deal as I am not a rivet counter. Ok, I just do not count all the rivets.
Many HO locos use a 1.1 inch speaker.
Don't forget to read over the SoundTraxx site. There is loads of good DCC info.
If you ever get a Athearn loco with Tsunami, the last I knew, those do not have all the same CV's.
Bowser/Stewart locos with the Tsunami have all the same CV's and are the same TSU that we buy.
Rich
If you ever fall over in public, pick yourself up and say “sorry it’s been a while since I inhabited a body.” And just walk away.