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Sony D-EJ01 - Page 2

post #16 of 47
I have ej915 with gumsticks. My gumsticks lost a good amount of their life after charging them like 12 time. Now I can only play like 12 hours of music with them. Not only that, they are hard to chew on and has a distinct metallic taste.

I never listened to the line output of the D-777 or the EJ01, but I have listened to the headphone jack. I think the d777 is better. I didn't think the EJ01's headphone jack was any better than my EJ915 even though most people claim that the EJ01 is better. I have read on other postings that the EJ01 is only worth buying for the line output.

I have to agree about the comment about the power of the amp may have some correlation to the quality of the output. Sure, a more powerful amp can output a bigger signal, but a more powerful signal doesn't mean a signal with no distortion. I also own a EJ725 which has about the same output power my EJ915, but the EJ725 kicks the EJ915's in the booty when it comes to output quality. Further, the ability to turn off G-Protection makes a big difference. EJ915 always has G-protection on and I think it is always compressed because the music sounds like a poorly encoded MP3. I can turn off the G-protection on the EJ725 and it sounds almost as good as my six year old d842 sony pcdp which has a 15mw amp. I am using my Senn HD570 with my pcdp's.
post #17 of 47
Thread Starter 
bearwise,
Don't make me hurt you 21-7! Are you from one of the lesser schools in the great state of Texas?
It's ok... Its nice to see some aggies have hobbies other than frolicking with sheep.
Hook'em!
post #18 of 47
I can get a pair of AAA or AA nimh's for 6-8 bucks locally. Also my player recharges AAA nimh's internally too. And as "convenient" as internal charging is, Gumsticks have low surface area crammed into a small compartment can really cause heat build-up which is #1 cause of poor recharge life.

I just have a charger, although I just charge the AAA's internally and AA's externally so its no big deal. I probably used an original set of AA nimh's for more than a year. Besides I'm sure theres plenty of other things you have around the house that can use AA's so an AA charger is very nice.

I "guess" $25 for gumstick is cheap...except that would be around 8, 1600 mah NIMH's. I guess it also depends on if your player charges the batteries correctly, but an external charger is able to dissapate more heat. When charging with players you should leave the battery compartment open.

Admittedly however AAA Nimh's are pretty poor in battery life. But a player with good efficiency off AA's and some NIMH AA's is both cost effective and should last very long time. I always prefer my players to be asthetic and thin, but at the same time I'll always have it covered in a protective case/bag anyhow.

When I brought my old SX-510 portable on a trip with long flights. With a set of AAA Nimhs and external AA Nimhs all of which should drain by time. During the course of three weeks I got it down to half battery capacity (admittedly I wasn't listening non-stop during those three weeks of course). There are players that are plenty more battery saving than the SX-510 with the new fast spin and stop motors and such. Course there was someone else with a bag full of alkaline AA's too.

Course if the PLAYER itself is more battery efficient or higher quality than that also plays into cost-effectiveness. Fry's sells A LOT...i mean A LOT of stuff...I don't think I've seen gumsticks however.
post #19 of 47
Well, I think the point has been made that

1) Gumsticks fit inside the E-j01; AA's do not.

2) You already have the gumsticks, so why not use them until they die on you--which probably will not happen for as long as you have the player (the ones in my 777 lasted 4 years and still take a decent charge).

3) Using AA's on the E-j01 require you to use an external pack w/ a cable...not terribly useful if you just want to hold the player in your hand.

4) Why bother buying rechargeable AA's when the gumsticks will usually last long enough between recharges.

5) As I've pointed out, the gumsticks will actually recharge off the external pack. What I do is keep the external pack in my backpack on the off chance that my gumsticks die while on the road. If they die, I plug in the external for a few minutes until the gumsticks have enough charge for a few more hours. I've had the same duracell AA's in my external pack for about three months!
post #20 of 47
Thread Starter 
Whatsa matta with you guys?
I said I'm not using gumsticks out of personal preference!!! I like getting $40 back for selling them... I don't intend to use it superportably anyway. I'm just going to stick the D-EJ01 in my traveller system bag and forget about it.
Gumsticks shmumsticks... its all about the sound baby!!!
post #21 of 47
utdeep,
gig 'em son
post #22 of 47
Not to flog a dead steer too much, but if you use the gumsticks wisely ( run them down to near empty before recharging them, avoiding the "memory" effects) they'll last longer than the AA's, even rechargable type. And you'll still make your money back not buying those silly AA's.
post #23 of 47
Plus I doubt youll find a buyer for them @ $40...

But whatever floats your boat lol. We're just tryna help you out.

Power to the gumsticks!
post #24 of 47
Quote:
Originally posted by bearwise
Not to flog a dead steer too much, but if you use the gumsticks wisely ( run them down to near empty before recharging them, avoiding the "memory" effects) they'll last longer than the AA's, even rechargable type. And you'll still make your money back not buying those silly AA's.
With NiMH cells the memory effect is much reduced (although still present) compared to NiCd. Thus you don't need to fully drain the batteries every time before charging. This actually can shorten their cycle life. Once every 3-5 ctcles is enough.
Now, the problem with the gumsticks is that they're usually charged in the player, which fries them badly. With any other decent charger you can expect anything between 300-1000 cycles before the capacity is seriously reduced. Charging in the player IS BAD. Expect no more than 100-150 cycles. I think, no matter how you try to dissipate the heat, if the cells are warmed above 40C they're overcharged. A good charger can charge your NiMH in an hour and at the end they're barely warm to the touch. So, I can understand why people don't like gumsticks. The main point of NiMH batteries is cost saving, but if you pay say 60 bucks for a set of two gumsticks and get 100 cycles out of them, this is almost as expensive as running on alkalines.
post #25 of 47
BLR,
I'm not sure I understand the physics or the chemistry of the overcharging thing you are talking about. Most of the wallwart rechargers are 3 -4.5 V, and comparable to most of the external charging devices I've seen. How does charging the gumsticks in the player shorten the life? The only thing I can think of is reduced heat exchange from having them in the battery compartment rather than out in circulating air, but I bet in most players that difference is not that great.
post #26 of 47
Guys,
I second all of you who like the gumstick. I like them too!! for my r900, d777, r90...and many more. I actually prefer the lithium ion, though..
post #27 of 47
Yeah, they may only last 100-150 cycles, but that's how many years of moderate to heavy use? And how many years do you plan to use this particular discman? If you're like me, you'll probably upgrade (or retrograde, as many in this forum prefer) in a few years, long before the gumsticks die. My current E-j01 gumsticks are currently over 2 years old and still going strong. The ones in my old 777 were over 4 years old and they still work.

Sorry to keep at you utdeep, but I just don't understand how you can hate these awesome batteries when you never really have to look at them or even know they're in there. Think of them as permanent internal rechargeables that are replaceable if ever necessary. It seems that you think there's some great replacement cost associated with these beauties...but that's years down the road, and then you can just go with your original plan to use AA's.

Just my thought...sorry to provoke you though.

hehe.
post #28 of 47
Quote:
Originally posted by bearwise
BLR,
I'm not sure I understand the physics or the chemistry of the overcharging thing you are talking about. Most of the wallwart rechargers are 3 -4.5 V, and comparable to most of the external charging devices I've seen. How does charging the gumsticks in the player shorten the life? The only thing I can think of is reduced heat exchange from having them in the battery compartment rather than out in circulating air, but I bet in most players that difference is not that great.
bearwise, it is not the voltage what is wrong, neighter it is the heat dissipation. Properly charged batteries shouldn't warm above 35-40C to begin with. In fact many external chargers have lids, so the heat exchange is tha same as in a player, look at Kodak K1000 for instance.
The problem is that charging in the player most often leads to OVERCHARGING and once the cells are overcharged, they start to generate heat. The overcharging is due to purely7cheaply constructed charging circuits. A good "smart" charger is IC controlled and costs $50 and up to $500 and more. Obviously, it is not cost effective to have such thing in a player that sells for $100-200. Usually it is only a timer that controls the charging in the player, i.e. it pumps them up with relatively high current for predetermined period of time regardless of the battery status. Thus if your batteries are not completely discharged, overcharging occurs. The manufacturers don't care. They want the cells charged in the shortest possible time and rather overcharged than undercharged. Who cares if you have to spend $50-100 on new gumsticks in a year or two time, it's even better for them.
post #29 of 47
Thread Starter 
I hate gumsticks! They smell bad, and taste worse. Now what do you have to say about that? Booyah!
Kubernates, other than your poor taste in batteries , how do you feel about the line outs of the D777 and D-EJ01? I've heard that the D-EJ01 is superior, but I want the opinion of someone with both.
post #30 of 47
Utdeep,
I have both units but never did compare the line out. I will go try and see. However, the line out on the ej01 is optical...so..it should be better than those of d777's.
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