What sounds are in the P2K GP9s?

[gregmc]

Was just over at Tony's Train Exchange and noticed they have a review of the gp9 and the BLI SD40. Not a very big article but they do mention that both engines have the same sound meaning one of them is wrong. They don't state which has the correct sounds though. I have read posts about both locos and I am sure this would be a glaring error if the GP9 sounded like a second gen. EMD or vice versa. So what sounds are in GP9?

Greg McCartney

[Anonymous]

[#welcome] Good question Greg,setting here reading the back of the box of my new GP9 it says variable rpm diesel engine sounds.This tells me right away that it is not acurate to the prototype.I raised the same question reguarding LL 2-8-8-2 and bli's class a 2-6-6-4.I think you will find as I have stated in the past as the sound revaloution becomes more common place all the Manf will be forced to offer more acurate sounds to the prototype to obtain there market share aka your wallet.Although I am a stickler for acurate sounds it has not taken anything away from the GP9 and my thouhts on its performance and or sound I probably will buy another one soon.Terry.

[darth9x9]

I posted a table of the sounds on a previous post 5 days ago.
http://www.trains.com/community/forum/topic.asp?TOPIC_ID=27202

[cspmo]

QUOTE: my new GP9 it says variable rpm diesel engine sounds.This tells me right away that it is not acurate to the prototype.

So GP9 have the same RPM through it's entire 8 notches.

[gregmc]

What I should have asked is does it sound like a gp9 or a first generation loco? The Tony's Train Exchange article said that their samples sounded the same meaning both locos sounded like second generation emds or both sounded like first generation emds. I am considering the sound GP9s but if they sound like a SD40 instead of a GP9, then I am definitely not interested. If this is true that they used the same emd sounds in both locos then someone at LL, BLI, or QSI definitely needs to get on the ball.


Greg McCartney

[rrinker]

QUOTE: Originally posted by cspmo

QUOTE: my new GP9 it says variable rpm diesel engine sounds.This tells me right away that it is not acurate to the prototype.

So GP9 have the same RPM through it's entire 8 notches.

Yeah I don't get people saying this. From where does this information come from? Someone posted the same thing on the Yahoo QSI forum about the E7's having variable engine speed, and tried to say this is not correct. A quick peek at that Operator's Manuals online a George Elwoods's web site shows that these locos indeed DID vary the speed of the diesel engine and the load changed, AND they transition between series, series-parallel, and parallel. That's straight from the horse's, errr, EMD's mouth in the operating manuals they wrote for the railroads to show them how to run these things.
As for the other question, as far as I can tell from the 40-2 I heard run, it sounds like a 645-engine EMD. Not a 567. So if the P2K GP-9 sounds like the SD40-2, it's the GP-9 with the wrong sounds.

--Randy

[Anonymous]

QUOTE: Originally posted by cspmo

QUOTE: my new GP9 it says variable rpm diesel engine sounds.This tells me right away that it is not acurate to the prototype.

So GP9 have the same RPM through it's entire 8 notches.

What I was saying is allready been answered but one thing ,if you look at a models manf.web site and it does not say acurate or genuine to the prototype then it is not.No manf. is going to spend the time or money to have an acurate sound system and then not flaunt that feature.From Tonys review that the GP9 and the sd 40 use the same sound system BLI states that its sound is acurate sd 40 sounds,so one can only summize that the gp9 has the sound of a second generation diesel. I have run my new GP9 and the quality of sound is very good but it in no way sounds like a first generation diesel.I was just looking at one of atlas press release on their B-23 GE engine it says athentic diesel engine sound it does not say acurate to the prototype,so it could be very well released sounding like what ever and not speficly a GE engine. TERRY.

[AntonioFP45]

I hope BLI didn't screw up.

The GP9's sound, if accurate, should sound very similar to the BLI E7 which came with the 567 series diesel (though E units had two).

One thing guys, your points are valid but the term "Accurate To the Prototype" should be broadened to "Accurate to the Prototype Power Plant". I noticed "back in the day" that varous types of prototype EMD units with 567 diesels sound very similar to each other, including the old EMD switchers (except that their exhaust was louder! ).

Just like I noticed back then that, except for the horns, a Seaboard Coast Line SD45 and an Amtrak SDP40f sounded identical as they had 645 series diesel power. That turbo-charged whine was very distinct..

I found out from a good friend that Happy Hobo Trains has the GP9s in stock. I'll ask Kevin to do a demo run for me and then I'll chime back in with my 2 cents.

10-4!

[Anonymous]

QUOTE: Originally posted by AntonioFP45

I hope BLI didn't screw up.

The GP9's sound, if accurate, should sound very similar to the BLI E7 which came with the 567 series diesel (though E units had two).

One thing guys, your points are valid but the term "Accurate To the Prototype" should be broadened to "Accurate to the Prototype Power Plant". I noticed "back in the day" that varous types of prototype EMD units with 567 diesels sound very similar to each other, including the old EMD switchers (except that their exhaust was louder! ).

Just like I noticed back then that, except for the horns, a Seaboard Coast Line SD45 and an Amtrak SDP40f sounded identical as they had 645 series diesel power. That turbo-charged whine was very distinct..

I found out from a good friend that Happy Hobo Trains has the GP9s in stock. I'll ask Kevin to do a demo run for me and then I'll chime back in with my 2 cents.

10-4!

Great i would be interested in knowing for sure what is prototype sound and what is not .My only source for this is some very old recordings that i have heard and what I read on the internet.I have no acess to a real sd 40 or a geep 9 so i can only trust that people here who have had expereince with the prototype,and there comments and reviews.Also I somewhat trust the manf.who advertise this feature to be true to the prototype to be actually true to the prototype.I for one am curious as to your comments on the geep. Terry