Tralucent Audio 1Plus2 IEM Appreciation/Impressions Thread - Page 11

The only experience i have with a twfk is full range in the GR01, but i can tell you it sounds waaaay better than the graph shows. I dont sense the 3k and 6k peaks, and i definitely dont hear a rolled off top end like the graph shows. Im hearing extension well beyond 10k.

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Originally Posted by Xymordos 

Is TWFK really the best mid-high driver? I mean, looking at the spec sheet Knowles provide, its frequency response isn't great...

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Originally Posted by Xymordos   Is TWFK really the best mid-high driver? I mean, looking at the spec sheet Knowles provide, its frequency response isn't great...

Knowles doesn't do measurements specific for audio (unless you're a manufacturer and you request them privately), so you are probably not seeing the relevant information. They might night not be using the IEC711 coupler, and rather a straight up 2cc coupler, and their microphone might not be rated beyond 10k. There are a lot of factors that may cause a graph to be irrelevant to high-end audio.

Secondly, there are definite issues with the TWFK; it has a dip between 3.5-4 kHz, which is very audible and probably its biggest flaw. It's very difficult to compensate for this dip. I've heard several TWFK variants, including several where Knowles has an integrated low and high pass applied to the two drivers, and although partially minimized, the problem is still there. Thus, the TWFK driver isn't really the best for an 'accurate' response, but if you want high end extension in a tiny size, there's no other driver that can provide this type of response.

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Originally Posted by tomscy2000 

 

Knowles doesn't do measurements specific for audio (unless you're a manufacturer and you request them privately), so you are probably not seeing the relevant information. They might night not be using the IEC711 coupler, and rather a straight up 2cc coupler, and their microphone might not be rated beyond 10k. There are a lot of factors that may cause a graph to be irrelevant to high-end audio.

the iec711 (or Zwislocki) coupler is not meant for hi-end audio either. That's why many audio companies out there don't bother much when other types of coupler are used. Etymotic & Sonion might stand as good examples.

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Originally Posted by svyr 
(not sure how smoothed the charts are)

1/12 octave, in the top right corner, says the graph

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Originally Posted by tranhieu 

the iec711 (or Zwislocki) coupler is not meant for hi-end audio either. That's why many audio companies out there don't bother much when other types of coupler are used. Etymotic & Sonion might stand as good examples.

There really isn't anything really meant for high-end audio, but IEC60711 standards were extended from their simple 100-8k compliances to 100-16k in the revised (but basically identical) IEC60318-4 standard. Could there be more refinements? Sure, but there just isn't anything more 'industry-standard' than your run-of-the-mill occluded ear simulator. Companies set their own standards still for most cases, and that's why it's all the more important that people shouldn't pay too much attention to graphs that aren't a straight up, apples-to-apples comparison. Anyways, getting slightly OT.

Hoping to get a demo so I can get this compared with a Westone ES5. 1p2 might dethrone it. :|

Quote:

Originally Posted by tomscy2000 

 

There really isn't anything really meant for high-end audio, but IEC60711 standards were extended from their simple 100-8k compliances to 100-16k in the revised (but basically identical) IEC60318-4 standard. Could there be more refinements? Sure, but there just isn't anything more 'industry-standard' than your run-of-the-mill occluded ear simulator. Companies set their own standards still for most cases, and that's why it's all the more important that people shouldn't pay too much attention to graphs that aren't a straight up, apples-to-apples comparison. Anyways, getting slightly OT.

yah, just wanted to give my input since your previous post might give the false impression to the non-experienced that the 711 is the holy grail if one is after accurate measurements.

imo graphs are useful only when you are designing stuff. In line with that, it doesn't really matter if you use a ha3 or 711 to obtain data as long you it's well calibrated and you know your equipments.

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Originally Posted by lee730 

 

UPDATE: Tralucent Audio 1Plus2 & T1 Tour

 

Hello folks Tralucent Audio is having a demo tour of their products and I am in the process of selecting 10 individuals (including Girls Generation) to demo their products and in return write a review/impressions here on the thread. So far 5 are on board and I'm waiting for the other 5 to reply. Looking forward to more impressions :).

If only I was a much more reputable member :\

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Originally Posted by shotgunshane 

Just curious- how big of a dip? This is the most sensitive area for me. Spikes or plateaus here can be very harsh and echoey to me. When I look at an FR graph, I always look to make sure it's either flat here, compared to the surrounding frequencies or even a small dip. The mg6pro has an elevation or spike here that makes it unlistenable without EQ for me.

Well, you liked the K3003, right? So, not enough of a dip, I suppose, though the K3003 uses one of the most expensive TWFK variants I know, which comes with compensation built in.