Welcome! Need support, you got it. Or share you ideas and experiences.
In Reply to: RE: quickie mods posted by fewjr on September 12, 2009 at 23:37:42
It would be helpful to know which AKG's you have. Some of the newer models are a little too demanding for the Quickie...
I am looking at the Quickie for possible headphone duty as well.
Should I assume the older AKG 240 Monitor are too hard for a Quickie to drive??
The K240 monitor looks like a 600 ohm headphone with decent sensitivity. On the output transformer, these cans would present a very light load and you should get the absolute best out of the Quickie with them! (the 600 ohm Beyer DT's are the other really good option I have run into)
Sorry, I didn't think of that. My wife & kids asked me what headphones I wanted for my birthday. I couldn't bring myself to tell them AKG K702s which is what I really wanted. They got me the K240 MK II, 55 ohm headphones. Could you please explain what you mean by too demanding. I try to learn something new everyday. ;-)
I cannot comment for sure on the K240-MKII, but the Quickie ideally drives higher impedance/higher sensitivity headphones. The 240's are low impedance, but may have the sensitivity to work well with the Quickie, it is just hard to say.
K-701's are one of the more demanding headphones I have ever owned, there is no question that you need something akin to the SEX amp to properly drive them.
I think I'm going to have to say I do not understand the coorelation between high impedance/high sensitivity. Can you point me in the right direction. Maybe some good reading.
The AKG 240 MK II headphones have an efficiency rating of 91 db SPL/V and are 55 ohm. What do you think Sir.
Impedance at the most basic level is matching the load of your headphones to the amp. The Quckie is setup to work best from high impedance headphones (over 100 ohms).
Sensitivity is a measure of required power to reach a certain level. Headphone sensitivity, unfortunately, is measured ina million different ways, so there is no standard.
From the numbers you posted, I would say go for the SEX amp or save up 200 bucks for some used HD-600's.
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