I stated nothing that violates this forum. I just wanted to share my experiences. Everyone is entitled to an opinion I understand that. How do I delete this post?

Furthermore, wouldn't it be easier to modify a short headphone extension cable and then insert a potentiometer in the middle.

I thought potentiometers had a high, low, and wiper. The Alps RK0971221z05 which is used on the mini3 has the middle as wiper and the ends as either hi and lo, I believe. Anyway, I measured the resistance between the middle and each of the ends before and after I turned the knob and I...

The new Aura phone sounds interesting to hear about from someone who might have access to it. For those of you who feel like you have everything gadget world can offer, I would say to you not yet. I guess MP3 is supported...

If I'm not mistaken equalizing basically filters the source signal to add gain or attenuation at certain frequency bands. In theory there is no way of keeping the source in pristine condition while performing filtering. So there is some trade offs. I don't have specifics unfortunately but I...

Something to think about for future product iterations. I suspect that with push button volume control the E5 may be using digital potentiometer. This implementation should allow for remote access to the volume control. I'm surprised that not more portable amps use digital potentiometers...

I too noticed that E5 is cleaner than E3, while E3 seems to have a little more bass. From physical stand point the E5 feels more substantial because of the metal finish and extra weight. Because of form factor, I like E3 with my Gen 1 iPOD shuffle, but I like the E5 with all other sources...

My E5 arrived today from DealExtreme. I'm charging the unit as I type. I hope this is as good as the E3.

When DAPs are used with a portable amp or even a size-able amp, how much does the DAPs internal amp color the audio signal? I suspect very little because the DAPs internal amp is not doing hardly any work or putting out much watts of power. Therefore the distortion or signal coloring should be...

I was listening to some older music and I noticed something interesting. In the old days, music studios recorded music some what live with people performing on their instruments at specific position or location in the studio. Hence the phase or the arrival of the signals of the different...

Wait, I just got something in the mail today 11-16-08. Its a new pair of PL-30 which looks like brand new. Focalprice sent me a new unit. I guess I have to due diligence and give this PL-30 a thorough look over. Its really weird how something of this nature plays tricks on your emotions.

In another perspective, this is the kind of thing intelligence community (uncle sam) would like to use to help in their efforts.

I believe iphone has an application that tracks friends location and activities. Furthermore I believe that telecom companies have been pushing a similar technology where social networks can keep tabs on or with each other. This is disturbing to me because something like this is what people...

So far I found the DS1802 to be most flexible. DS1802 is already stereo with balancing built in and logarithmic. Below is the matching set of decoder and digital potentiometers. For LS7083: DS1802 (log) AD5228 (single) X9571 (single) For LS7084: X9C303 (log)(single) As for the...

Thanks for the inputs. I did not find that info in the DS1802 spec sheet the first time around. I'll have to check again. I did think about the logic circuit that will be needed to interface rotary encoders to push button type digital potentiometers. I have here the theory: c: old value A...

I found this somewhere while searching: "Signals A and B of the rotary encoder pass through a quadrature decoder (LS7084 from LSI Computer Systems, LSI CSI - Design and Production of Full Custom and Standard Integrated Circuits), which translates the phase difference between A and B of the...

I think I said it backwards. There is a timing requirement for the encoder to set the digital potentiometer. I guess the user have to be trained to skip every other detent before the bounce time expires. So at the right speed of rotation the encoder might work. Maybe this is more...

AD5228 bounce time is 10ms. EVE-VCGJL016B at 60 r/min T1 = 4msec min. (start of rotation to first detent) T2 = 2.5msec min. (last detent to the next detent) T3 = 2.5msec min. (last detent to the next detent) T4 = 2.5msec min. (last detent to the next detent) T1 through T4 completes 1...

Ok. Please correct me if I'm heading in the wrong direction. Basically I've read that if the rotary encoder is turned clockwise then the terminal A (of the encoder) leads terminal B by 90 degrees. I'll have to assume that for counter clockwise B leads A. So given the time duration (bounce...

How do you match rotary encoder specs with a digital potentiometer? I saw that several encoder manufacturers use somewhat different terminologies for their product. Furthermore the digital encoder manufacturers use even more different terminologies. For example: Panasonic P12418-ND specs...

Ok, I ordered on Oct. 16 and received the PL-30 on Oct. 30. But I either have a lemon or someone did something to the red side. I can not know because the Sound Magic box was not sealed. The red side had the grill mounted at a slant and not flush like the blue side; could be that someone...

I tried the Kramer Mod and I must have done something wrong, because the diaphragm kept rubbing against the grille - causing rattling. I tried without the grille and the diaphragm kept rubbing against the ear foam pad - causing rattling; even after I cut the middle part of the ear foam pad out...

I googled and found there is an inverting unity gain circuit using 1 opamp and 2 resistors of equal value. But of course, you need power supply for the opamps. If Fiio could put this in their circuit???

It seems that I may have jumped the gun. Anyway if Fiio did decide to support bridging mode then they could put in an inverter to one of the input channels when both the input channels are equal, for instance. The output would be Left + and Right + or vice versa depending on the channel...

Fiio in Dual-Mono for Big Cans? A big assumption, but if the Fiio output can be bridged then two Fiios can be used to drive those high impedance and low sensitivity headphones. Build of material to test if this would work: 2 Fiio E3 2 disposable headphones (for their cables only) 4...