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Jabra Enhance Pro on order. Would appreciate input

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In reply to @jay_man2

No.

Don’t go mad with the receiver choice. The HP will be plenty.
He’s a new user and won’t need the extra (initially at least).

Also the performance of identical receivers is much easier to match/deliver acoustically. Bear in mind that due to his current asymmetry and subsequent Auditory Dysfunction he’s used to the right ear getting a lower response. Bumping in a huge correction to that asymmetry isn’t going to be an easy transition. Easy upgrade down the line to a better receiver if needed.

Edited

In reply to @kallmr

@kallmr said:

What software do you use for adjusting your hearing aids?

Im using the NoahLink Wireless control and the SmartFit program. You will also need a Windows PC or laptop.
Got the Noahlink on ebay for under $120 and the SmartFit software link on this site is free.
I took a few of the free video courses at Audiologyonline.com4 on both the Resound One and the SmartFit software, each is about 30-45 minutes. They are free and are easy to follow. The SmartFit software will work with Jabra aids, if you can look at the Costco audi working on your aids, they use the same SmartFit software. It’s actually kinda fun and very educational to learn how many adjustments are available. The trick seems to be knowing how all of the adjustments relate and affect each other. Keep us posted

In reply to @Um_bongo

I would listen to this advice. He’s an experienced audiologist. I would have guessed differently for a recommendation, but I would listen to Um-bongo. What they are proposing is very reasonable.

I don’t know if Um-bongo has an opinion, but I’d go with molds in both ears rather than just one. I find them more comfortable and I think it will be easier to control feedback.

We covered this in another thread.

Smaller receiver diaphragm, responds more quickly, reduced phase delay. Reed and drive system is lighter and more responsive; better at responding to higher frequencies without distortion.

As long as you can hit the peak power needed with the smaller driver unit, it will always yield a better result. Also if you look at the peak output of the Oticon 85/90dB unit; it’s actual not that far off the 100dB, but it does it in a much smaller package.

@Um_bongo
If I read the Resound One fitting range chart correctly, the HP vs MP receiver just adds some more volume above 4000Hz. This wouldn’t appear to benefit me looking at my . So, would you recommend the MP receiver instead for better speech comprehension?

In reply to @kallmr

Look at page 56 of this:

https://gs.resound.com/-/media/resound/resound-us/downloads/va/legacy-forms/400973211us-ug-gs-quattro-61-userguide.ashx?la=en-us&hash=0BD6EE9241DE9A704A2359BEF99C63A819

You’ll see the peak output of the HP is 120dB, but the UP is 128dB.

The output is over a narrower bandwidth with the UP. Look at the relative distortion too.

@Um_bongo

Pardon my ignorance but what should I be focusing on in the data in those charts and graphs?

It’s looks to me that when you go up in receiver size that not only the peak increases per the charts, but also the max dB at each frequency increases per the graphs, but how do you use that for my ? Do I just ensure that the max dB at each frequency per the receiver chart is higher than my audiogram?

Also the frequency range appears to get smaller as you go up in receiver size, but how does that translate to an audiogram? Is the receiver limited to producing sound just in the listed range? If so, why does the output graph show dB values for frequencies outside the listed frequency ranges?

Thanks for the replies.

In reply to @kallmr

If you look at where the Output (90in) for the two receivers you’ll see that the peak output is higher in frequency than the UP. This means that the primary harmonic of the device sits around 2.5KHz - ie where the device works most efficiently without distortion etc.
The UP primary harmonic is around 1.5Khz, which means that when the receiver gets wound up to full beans to try and drive sounds at 2.5KHz and above it’s going to ‘want’ to run away at the lower peak simply due to the way the receiver works.
That’s why you hear the stories like the chap above who gets better results from the smaller receiver. That’s in addition to a situation called the ‘downward spread of masking’ where overpowering the cochlea in the HF results in the over stimulus of your lower pitches; which in itself results to a poorer speech and more auditory fatigue.

In reply to @Um_bongo

@Um_bongo said:

Smaller receiver diaphragm, responds more quickly, reduced phase delay. Reed and drive system is lighter and more responsive; better at responding to higher frequencies without distortion.

Thanks for this info. I must have missed it prior. Very much appreciate your input

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