just curious whether youve tried how the bare stock cans sound without the back cups installed. So meaning totally free air in design. And also how do the 840 pads sound with the same totally open back design/no mods on driver except to take off the cups altogether
Recent Images In This Thread
Related Forum Threads
- Closed headphones for music + gaming? Last post on 2/7/15 at 9:08pm in Headphones (full-size)
- Mad Dogs too good to be a gym headphone? Last post on 9/24/12 at 5:51pm in Headphones (full-size)
- University Cans - $450 Last post on 9/24/12 at 3:35am in Headphones (full-size)
- Need advice on headphones to compliment my Q701. (<200$) Last post on 9/6/12 at 5:35am in Headphones (full-size)
- Could a modded T50rp best an HD650 (or come close to an LCD-2)? Last post on 5/22/13 at 4:07pm in Headphones (full-size)
Last edited: 8/18/12
- Buying Guide Headphones By Price RangeLast edited: 10/26/12
- A Hopefully Helpful Headphone Buying Guide For Newbies By BoomanaLast edited: 1/6/13
Vibro Labs Aria (universal) – initial impressions In my travels on Head-Fi over the last year or so, Vibro Labs is a name I had heard bandied around in various forums, mainly as makers of...
Alright, these are the most confusing set of cans I've ever owned. Why are they so cheap? It doesn't make any sense. Right out of the gate, these are the most comfortable set of headphones...
These are easily my favorite headphones I own. My review will be assuming you have Shure 1540 pads, but I'll go over some other options as well. Lets get the big negative out of the way now....
AK Audio Super Dolphin 6BASticking a Dolphin in your ears! DisclaimerThe Super Dolphin 6BA is a loaner unit provided in exchange for my honest and unbiased opinion. I have tried my best to...
This is an excellent pair of headphones, sound is very clear, and the looks are impressive. I am disappointed with the padding, hurts to wear in less then 15 minutes. Pads can be replaced though....
Fostex T50RP Incremental Mods and Measurements - Page 5post #61 of 22208/6/12 at 8:31am
Gear mentioned in this thread:post #62 of 22208/6/12 at 8:56amThread StarterQuote:
Yes, I have. As you might expect, they sound thin with no bass. Am I correct in assuming you're interested in free-field measurements, perhaps for calculating your HRTF?
Here's the Measurement Chain:
MacBook Pro with REW > McIntosh MX-136 pre/pro for pre-amp > Dacmini with 1 ohm output impedance for amplification > Panasonic Electret Mic > Phantom Power Supply > MacBook Pro for analysis and graphing by REW
If there is any interest, I can upload "windowed" vs free field measurements for T50RP and B&W 803S tower speaker using the same Measurement Chain.
I made a "windowing chamber" using a cardboard box and took measurements. The back of the driver was separated from the back of the chamber by ~20 cm, IIRC.
Next, I taped the same Panasonic electret microphone on a tripod and measured free field response of my B&W 803S at 1 meter. Before doing so, I moved the speaker to the center of the room with at least 8 feet clearance all the way around the speaker.
This was not my project. A friend requested these specific measurements for calculating his HRTF.
I also have pictures of the "windowing chamber" aka cardboard box. LOL
I will measure the open back stock T50RP with Shure 840 pad and post the results on the database at Post #1.post #63 of 22208/6/12 at 9:05ampost #64 of 22208/6/12 at 9:10am
Great, thanks! I was just curious more than anything because based on speakers like magnepan magneplanars, they like to be positioned at least a few feet away from the wall for them to sound their best. The bass actually gets thin when you stick them beside the wall unlike dynamics which gives the opposite boomy sound when stuck beside the wall. I was thinking maybe what if a deeper cup enclosure was built for the fostex cans. maybe something like 2 inches deep? :)
Edited by donunus - 8/6/12 at 4:24pmpost #65 of 22208/6/12 at 10:17amQuote:
Yes, I think an amp is highly desired when using the T50s. When stock, the efficiency is high - up in the 98dB range. However, after the damping materials and modifications get applied, the efficiency drops to 92dB, or close to that level. Through the modification process, the Fostex is turned into an orthodynamic beauty. And, as with most - if not all orthodynamic headphones, an amp is a great piece of gear to piece with them.
Also, keep in mind, the orthodynamic drivers are capable of handling a lot of power. They can handle more power from an amp than a regular headphone, with dynamic drivers. The Fostex T50, when stock, specs of it handling 3,000mW of power. There was just another headphone with dynamic drivers that I was reading about - I believe the AKG K701, which is rated to handle 200mW of power. That is quite a large variance.
I really think that if anyone is looking for a pair of headphones that doesn't need an amp, they should just focus on some IEMs. Stick with in-ear earbud headphones. Even an efficient headphone, will still love the current supplied by an amp and perform better with a better body to your music when the amp is used.post #66 of 22208/6/12 at 1:21pm
I disagree, I don't think an amp fixes anything with the T50rp, it just makes them better. They sound great out of an ipod. Just not to their full potential, but they'll never get to their full potential, a better amp and source just gets them closer to it.post #67 of 22208/7/12 at 3:25pm
It's my first post here: very nice forum!!!!
I'm sorry for my english but I'm from Italy.
Looking at the first post of this 3d i suppose that the best waterfall should be the N. 9 because all ends in 200ms.
PS Compliments to BMF !!!!post #68 of 22208/8/12 at 5:55amThread StarterQuote:
Number 9 is fast, yes, but it likely still has resonance problems since it's stock + modified bass port, only. DBV #2 is also fast, And flat.
If you care to try any of my mods, I recommend DBV #2 as described in Post #1 of this thread. Go to the sections describing the mod configuration for DBV #1 and DBV #2. Look at Graphs 56-61.
Follow the written guides for DBV #1 with DBV #2 mods Plus one little change:
Install the Transpore, or cut a rectangle of the desired size from a glossy magazine cover, and place one or the other Under the stiff craft felt. This change increases treble without effecting bass/mids. Use thin double sided tape on the driver grid lines to hold the paper in place. Implementing this one change to the configuration may require reducing the amount of cotton/fiberglass you use.
Every mod must be tweaked, individually, even when you follow anyone's mod configuration Exactly.
Best wishespost #69 of 22208/8/12 at 9:19am
Thank you for the replay!!!
It seems a little bit strange that the N. 9 waterfall (that don't use damping material) is faster than the following (that uses damping material).
What do you think about=?????
;-)post #70 of 22208/8/12 at 9:41am
So I decided to recable my T50-RP, big mistake. The wires came loose, so I figured I will just solder the wire back in, well, the warning is true. Soon as I put my solder iron on solder, the film melted out, and the entire thing is ruined.
Oh well, now my bass-heavy set is gone, and I am left with my bass-light set. I am thinking of getting another one and modding it.post #71 of 22208/8/12 at 5:32pmpost #72 of 22208/8/12 at 5:39pmQuote:
Yes, but watch the volume level. The Fostex T50s are capable of handling 3,000mW of power. Other dynamic headphones are at times, only capable of 200mW for total power. Again, keep an eye one the volume level.post #73 of 22208/8/12 at 5:44pmpost #74 of 22208/8/12 at 6:01pmpost #75 of 22208/9/12 at 7:17am
OK, I understood that I've to watch at volume level !!!! So no problem with the power.
My Musical Fidelity A1 was modded by Aurion Audio in Italy (no op amps, full discrete class A circuit, Alps blue pot, low feedback, improved power supply and caps, cc coupled, ecc...).
Do you think the quality will be enough for a Fostex T50RP ???
Or the headphones amps has more sound quality than a speaker amp?????
Thank you !!!!
- Fostex T50RP Incremental Mods and Measurements
Gear mentioned in this thread:
- Buying Guide Headphones By Price Range
- › Mrspeakers Alpha Prime 3.5mm and 6.3mm SE 1 second ago
- › Earbuds Round-Up 45 seconds ago
- › AURALiC VEGA DAC in perfect working and cosmetic condition 1 minute ago
- › Bose QC35 Wireless Noise-Cancelling Headphones 1 minute ago
- › DX200 The style has been chosen by your votes. Details of design... 2 minutes ago
- › Shure SRH1540 -Price Drop- 2 minutes ago
- › Headphones for metal music - ultimate solution 2 minutes ago
- › Westone W60 Impressions Thread 3 minutes ago
- › AKG K550 w/ Alpha Pads 3 minutes ago
- › FiiO E12 Review 4 minutes ago
- › Vibro Labs Aria quad armature in-ear monitor by Jackpot77
- › Philips SHP9500 by reikoshea
- › Fostex T50RP MK3 Professional Studio Headphones, Semi-Open by reikoshea
- › Super Dolphin 6BA by RedJohn456
- › HE-5LE by audiophilehe400
- › Logitech X-540 5.1 Surround Sound Speaker System with Subwoofer by artofmanliness
- › Massdrop x HIFIMAN HE350 by reikoshea
- › Hifime Sabre 9018 USB DAC by Rish732
- › Beyerdynamic DT 770 PRO Closed Studio Headphones - 250 Ohms by Rish732
- › FiiO A1 Micro Headphone Amplifier by chef8489
- › Flawless Album Suggestions
- › The Audiophile Scene in a Third World Country...
- › Mad Lust Envy's Headphone Gaming Guide,...
- › Mad Lust Envy's Headphone Gaming Guide,...
- › Mad Lust Envy's Headphone Gaming Guide:...
- › Chord Mojo FAQ
- › Head-Fi Logo Gear
- › All about iPod Touch 6G as digital transport
- › List of major HiFiMan HE1000 reviews,...
- › Can I change my user name? Can I delete my...