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ROCK JAW Testers - Page 27

post #391 of 1034
Thread Starter 
Not yet, but I will : )
post #392 of 1034

Still testing the Alpha Genus - and after rereading what Bob told us about the port in the ebony filters, it finally twigged why the Monster Supertips with the ebony filters were causing such a huge bass response.  Not only was I getting a really good seal - but I was also blocking the hole with the sleeve of the foam tips.  End result - bass monster.

 

Which brings me to what I consider to be a flaw in the design (sorry Bob).

 

The nozzles are too short to use foam tips - which by their nature are more likely to create a complete seal and isolate properly.  I've tried standard Comply tips - and as soon as I get a good seal, and go to remove them, the tips remain in my ear (every time).  No matter what I do (short of supergluing them to the nozzles), the result is the same.

 

If I push the Supertips right down the nozzle - they stay put - but it blocks the port and I end up with bass-monsters.

 

If I use the silicones - because of my ear canals - it can take me 4 or 5 minutes to get a decent seal sometimes, whereas with foams, I can do it in a few seconds.

 

So - the solution - maybe ......

 

Longer filters - but with dampers instead of holes.  Bob - I don't expect you to consider this with the A-G's - it's beyond their price point.  But if you do introduce a higher price bracketed single BA with tunable filters - it would be something to consider maybe.

 

Anyway - still loving the A-G's, and hope to start working on putting my notes into coherent order over the next week.

 

Paul

post #393 of 1034
Thread Starter 
Quote:
Originally Posted by Brooko View Post
 

Still testing the Alpha Genus - and after rereading what Bob told us about the port in the ebony filters, it finally twigged why the Monster Supertips with the ebony filters were causing such a huge bass response.  Not only was I getting a really good seal - but I was also blocking the hole with the sleeve of the foam tips.  End result - bass monster.

 

Which brings me to what I consider to be a flaw in the design (sorry Bob).

 

The nozzles are too short to use foam tips - which by their nature are more likely to create a complete seal and isolate properly.  I've tried standard Comply tips - and as soon as I get a good seal, and go to remove them, the tips remain in my ear (every time).  No matter what I do (short of supergluing them to the nozzles), the result is the same.

 

If I push the Supertips right down the nozzle - they stay put - but it blocks the port and I end up with bass-monsters.

 

If I use the silicones - because of my ear canals - it can take me 4 or 5 minutes to get a decent seal sometimes, whereas with foams, I can do it in a few seconds.

 

So - the solution - maybe ......

 

Longer filters - but with dampers instead of holes.  Bob - I don't expect you to consider this with the A-G's - it's beyond their price point.  But if you do introduce a higher price bracketed single BA with tunable filters - it would be something to consider maybe.

 

Anyway - still loving the A-G's, and hope to start working on putting my notes into coherent order over the next week.

 

Paul

 

I think if we use dampers rather than holes, we negate the need for a longer filter, as you say above the only issue being the foams covering the port. I think with universals that you will always have an issue with fitment for some people. For example I really don't like foams, but get a perfect fit every time with silicones, and like yourself, foams are the thing for you. Its about finding that balance. Always easier said than done :blink: :D

 

Very much considering a dual BA at the moment. In fact have been for a while. Its on the table, but not started as a project yet.

 

Some good feedback Brooko.

 

I will PM rest of details a little later today you asked for.

 

Cheers

post #394 of 1034
Thread Starter 

Just tried some acoustic foam in the black filters on the Alfa G as a damper, this has lifted the bass but kept the top end and mids tight. Seems a lot more neutral. More testing needed, but this could be the answer to a third filter.

post #395 of 1034
Hope it tamed the highs as well a little. It's a little too spikey. Review should be up soon from me biggrin.gif [looking at tomorrow]
post #396 of 1034
Thread Starter 

Tamed them a little, still bright, but not as sharp.

 

Going to play with different quantities of damper.

 

Look forward to your review Billson:beerchug:

post #397 of 1034
Congratz again on Front Page status Brooko... Ladies and Gentlemen we have a celebrity in Da House! smily_headphones1.gif
beerchug.gif
post #398 of 1034
Thread Starter 

Just to let you all know, today we have sorted a third filter set for the Alfa Genus. We are going to do a sample run and should be ready within the next 10-14 days. This should be middle of the road of the silver and black filters.

 

Thanks guys

 

Bob

post #399 of 1034
Quote:
Originally Posted by TrollDragon View Post

Congratz again on Front Page status Brooko... Ladies and Gentlemen we have a celebrity in Da House! smily_headphones1.gif
beerchug.gif

 

Thanks mate - no celebrity, but I have to admit that one was actually pretty enjoyable to write - and I wasn't expecting the end result.  T1 vs DT880 should be very interesting ......

post #400 of 1034
Quote:
Originally Posted by Brooko View Post

Thanks mate - no celebrity, but I have to admit that one was actually pretty enjoyable to write - and I wasn't expecting the end result.  T1 vs DT880 should be very interesting ......
And a very enjoyable read good sir!

Can't wait for the DT880 vs T1 comparison from the MK IV, it will be excellent!

If you could toss a T90 in the mix I think it would turn into the goto which to buy review.

Much Props!
beerchug.gif
post #401 of 1034

:)

 

If I brought the T90 home while I still have the T1 and DT880 - I might find myself sleeping outside.  And the temps are sub zero here at night - so not on my list of novel things to try ;)

post #402 of 1034

Bob, just to double check, a carrying case will be included in the future production of all RockJaw's IEM right? 

post #403 of 1034
Thread Starter 
Quote:
Originally Posted by BillsonChang007 View Post
 

Bob, just to double check, a carrying case will be included in the future production of all RockJaw's IEM right? 


Yes there will be a case/pouch on all future production runs.

post #404 of 1034
Quote:
Originally Posted by Rockbob View Post
 


Yes there will be a case/pouch on all future production runs.

Thanks! 

 

Review is up! :D

http://www.head-fi.org/products/rock-jaw-alfa-genus/reviews/11228

http://www.technoheadphone.com/headphones/rockjaw-alfa-genus-review-rocks/

 

Thanks again RockJaw for the opportunity!  

post #405 of 1034
Thread Starter 
Thank you Billson! A good and honest review. I think you will love the 3rd filter once ready
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