help selecting transducer

[apw]

Looking for some advice/help selecting a transducer or transducers. I currently have a CM75LHW, cavity mounted, DIFF1-UHD sounder, and TZT14 MFD. The low side of the transducer tested bad. I want to replace and upgrade with a transducer (s) that can: offer 1 KW high chirp wide, 2 KW low chirp and optimally support DFF3D capability when I eventually upgrade to the new TZTXL MFD.
What transducer or combination of transducers would come close to this target? If there is a path to upgrade the transducers and have them function with the exiting MFD before upgrading to the new screens, that's even better. Thanks for any input.

 

[Sparky Wire]

Did you maybe mean you have a CM275LHW? Regardless... replacing the transducer to a 2KW on the low side will not allow the DFF1-UHD (1KW unit) to put out additional power. Was the low side not reaching bottom at your fishing grounds?

 

[apw]

Yes, that was a typo it is 275. I do fish the NE canyons and was interested in what a 2KW could offer. On my previous vessel I had a 1KW transducer and it was adequate for that fishing. However, I did want to understand the options that could give me 2KW for deeper water fishing such as daytime swordfish.

If I were to stay with 1KW, and upgrade to the 3D capability, I believe the 165T-50/200 with a DIFF3D might be a good option, as it has the 3D elements and can be mounted with a faring block. I did not plan to remove the old transducer from the pocket as this could be a more involved project snd that pocket is relatively small as it has the 275.

If I were to select a 2KW option, I think the best option is a R109LH but then I would need a separate transducer for the 3D elements down the road.

Are there other options you might suggest or modify.

 

[Johnny Electron]

I am not a big fan of the B164 1kw that is used in the 165T-50/200. If your 275 is staying and working well, you might want to consider just running a standard 165T-B54 for the DFF3D and continue using the 275. The B164 will be a disappointment compared to the 275, I can assure you. If going to run all three, then okay but I don't think the B164 will offer you much except for another sounder screen option.

 

[apw]

Thanks. I think adding a 165T-B54 will give me the 3D elements. but not low frequency chirp, which I need since the low side of that existing 275 is bad.
Sticking with 1Kw, is there a transducer that can be surface mounted and deliver the 165T elements and LHW chirp at 1KW. I see the pocket mount version on the web site.

 

[Johnny Electron]

Only pocket mounted combos and one transom mount combo. When considering DFF3D transducers and combos, I highly recommend this document. https://www.furunousa.com/-/media/s...als/public_manuals/dff3d_transducer_guide.pdf