Sir Alamon
New Head-Fier
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I' ll translate:
"Dual E-Series Driver paralleled with 64ohm impedance (FYI: grado uses the same driver for all the models changing ventilation holes)"
post your grado mods....
I' ll translate:
"Dual E-Series Driver paralleled with 64ohm impedance (FYI: grado uses the same driver for all the models changing ventilation holes)"
This confuses me even more. Haha
Dual drivers as in two in each ear cup? Because that's how I interpret it, especially with the name "Twin Pulse". Plus the impedence is exactly double something like the 225e (32 ohms). I think four drivers woulda kinda be impossible though lol
So according to them.. the only difference in Grado headphone drivers is the ventilation holes? Everything else about the transducer/driver is same just the venting/holes? That seems a little crazy if true. Grado always talks about "tuning" and how they tune each model until they're happy with it.. could the tuning just be choosing a wood, which foam they want and then poking some holes in the driver? Lol
Harry Manback
500+ Head-Fier
Have some noord reds on the way. I only saw one type for sale on their site. Noord Red. Is this their newest revision?
Thanks folks!
Thanks folks!
If you just ordered then they are the newest with the aluminum housing, its the only one they currently sell
Sir Alamon
New Head-Fier
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Yep, 2 drivers in each ear cup.
According to them yes, the only difference are ventilations hole. I really don't know if it's true, but I really doubt it.
Even if the Spirit Labs owner actually owns ALL the grado headphones so maybe he knows what he is talking about
It actually wouldn't surprise me if Grado only used two or three drivers for their entire e series. They're a very small company with no real audio design engineers and they obviously use a lot of the other parts (gimbal, headband etc) in all their products so it wouldn't surprise me.
I am interested in their twin pulse headphone flagship. It seems extremely interesting and I wonder how it sounds. How do you put two drivers in each cup? I am also trying to figure out if they're using the sr60e. Which I would guess they probably are since they have to use four of them.. for money sake.
I contacted them and yes they are using the 60e for that headphone and they reiterated that Grado is using the exact same driver in 60e as they are in all of their e series (44mm?) Headphones. So all SR series and RS2e etc just using different wood and other housing materials and also changing the vented holes in the driver.
After my trials with SR60i, SR60e, SR80i, SR225i and SR225e drivers in wood cups, vent mod, sorbothane on the back of the driver, dynamat in the cups / back of driver and felt on the back of the buttons none came close to the RS2e in the treble extension, details, and clarity.
This is my thinking of the drivers used:
Driver one: 60e, 80e and 125e
Driver two: 225e and 325e
Driver three: RS2e and PS500e (possibly GH-1 & 2)
Driver four: RS1e, GS1ke, PS1ke (50mm drivers)
Driver five: GS2ke
fleasbaby
Member of the Trade: Wabi Sabi Headphones
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Agreed. Despite my misgivings and suspicions aside, after hearing the different models I have listened to, I think there is a difference between the drivers (even though they are visually indistinguishable from each other in the "i" versions and prior).
That sounds very very possible. I would not be surprised if your driver theory was correct.
So has anyone here actually heard the twin pulse by spirit labs? I was far too interested in it so I ended up talking to them and bought the twin pulse Ragnar edition
Very excited to hear it. Four e series Grado drivers in a nice aluminum shell with balanced cables. Interesting indeed.
That sounds very very possible. I would not be surprised if your driver theory was correct.
So has anyone here actually heard the twin pulse by spirit labs? I was far too interested in it so I ended up talking to them and bought the twin pulse Ragnar edition
Very excited to hear it. Four e series Grado drivers in a nice aluminum shell with balanced cables. Interesting indeed.
I haven't heard anyone who as heard the twin driver version but a friend had a one of their PS series clones (single driver) and he didn't keep it since it wasn't that good to him. He said that the treble was grainy and the bass sounded like a Grado with too many vents open where the quantity was a bit too much and it was a touch muddy / one-note to him.
Ah I see. They are telling me this is their best creation yet so I'll post impressions once it comes in.
Hope they sound as good as they say they are and would love to see how the double driver arrangement looks
Yea definitely. I'm usually pretty blunt about what I hear and have great hearing so I'll fill ya in about it once I give it some listening. Fingers crossed that it's at least somewhat on the same level as my RS2e.
