Bachmann Online Forum

Discussion Boards => HO => Topic started by: Boomer2611 on December 29, 2020, 09:31:31 AM

Title: Adding DCC Sound
Post by: Boomer2611 on December 29, 2020, 09:31:31 AM
My first loco arrives today! (OK, with the shipping issues around the nation, we'll see!) I've ordered the Bachmann 60916 BNSF #1734 - Heritage III SD40-2. It has DCC but not sound. Yeah, I probably should have sprung for the sound version, but I'm putting a lot into my first layout. My question is, can DCC sound be added to the loco at a later date, and how does one do that? Your help is appreciated!

John
Title: Re: Adding DCC Sound
Post by: rich1998 on December 29, 2020, 10:50:52 AM
Look at the Bachmann  Soundtraxx decoder selector page for you loco.

https://soundtraxx.com/reference/decoder-selector

TCS has a page for this but not your loco. I know yours is an SD-40 but this should give you some idea. Not easy for a new person.

https://tcsdcc.com/installation/ho-scale/666

Rich
Title: Re: Adding DCC Sound
Post by: Trainman203 on December 29, 2020, 06:44:37 PM
Having DCC but no sound is like having a flashlight but no batteries.
Title: Re: Adding DCC Sound
Post by: mjmcbride08 on January 10, 2021, 11:32:14 AM
I want to replace the factory decoder in my GP7 with a Tsunami2. It looks like there is a round area inside the fuel tank on the bottom of the loco. Is that meant for a speaker? if so, what kind of speaker will fit?
Title: Re: Adding DCC Sound
Post by: Hunt on January 10, 2021, 12:06:39 PM
Round area in fuel tank is for speaker.

Click Here  (https://soundtraxx.com/accessories/speakers/round-speakers/28mm-round-speaker/) for SoundTraxx recommended speaker to be used with their Tsunami2 sound decoder.

Title: Re: Adding DCC Sound
Post by: Hunt on January 10, 2021, 12:45:43 PM
Also ----
Click Here  (https://estore.bachmanntrains.com/index.php?main_page=product_info&cPath=68_188&products_id=9679&zenid=mh3fu26091gcurikr73hu2fvc1) for Bachmann speaker and baffle parts for GP7. But it is without relevant specifications to determine if speaker is compatible with SoundTraxx Tsunami2 decoder.
Title: Re: Adding DCC Sound
Post by: mjmcbride08 on January 10, 2021, 07:04:46 PM
Thanks for the help! I would think the Bachman speaker would be compatible, but I will order one and find out.
Title: Re: Adding DCC Sound
Post by: Hunt on January 12, 2021, 05:00:25 PM
Quote from: mjmcbride08 on January 10, 2021, 07:04:46 PM
Thanks for the help! I would think the Bachman speaker would be compatible, but I will order one and find out.

SoundTraxx recommends the Tsunami2 TSU-PNP part number 885013 for the Bachmann HO GP7
This decoder the audio amplifier is 2 Watt, 8 Ohm load.  If the Bachmann speaker is 1 Watt, 8 Ohm, which it likely is,  speaker will be damaged.