Koss PortaPro: Gramps Kicks Up A Fuss
Source: Tom's Guide US | Keywords: 8, audio, player, earphones
- 1. Introduction
- 2. Isolation: Good Or Bad?
- 3. Testing And Evaluation Methods
- 4. Testing And Evaluation Methods, Continued
- 5. AKG K26P: Bass! But Too Much?
- 6. On The Graph And To The Ear
- 7. Koss PortaPro: Gramps Kicks Up A Fuss
- 8. On The Graph And To The Ear
- 9. Koss The Plug: Direct Injection
- 10. On The Graph And To The Ear
- 11. Sennheiser PX200: Quality You Can Count On
- 12. On The Graph And To The Ear
- 13. Sennheiser PXC250: Higher Quality, Lower Noise
- 14. On The Graph And To The Ear
- 15. Sennheiser MX500: Earbuds That Don't Hurt
- 16.
- 17. Sennheiser MX550: More Of The Same?
- 18. On The Graph And To The Ear
- 19. Sony MDR-EX71SL: Ow!
- 20. On The Graph And To The Ear
- 21. In Conclusion
7. Koss PortaPro: Gramps Kicks Up A Fuss
- Audio Visual Accessory...
The famous American manufacturer Koss scored a big success with their PortaPro in 1984; more than twenty years have gone by and it's still around! For many aficionados, this is the standard by which other portable headphones are judged. On the outside, nothing's changed. The architecture is fairly complex, as this is a supraaural headset, but with a pair of cushions that rest on your head and a three-position pressure adjustment.
The goal is to optimize the acoustic coupling with your ears and ensure comfort at the same time. Note that this is an open-style earphone, which means that there's practically no acoustic isolation. So don't expect it to insulate you from a noisy environment. The earpieces, which are mounted on a pivot joint for perfect positioning on your ears, are foldable for transport.
Technical Characteristics
Type: Semi-open supraaural Frequency response: 15 Hz - 25 kHz Nominal impedance: 60 ohms Sensitivity: 101 dB/mW Cable length: 4' (1.2 m) Connectors: 3.5 mm jack + 1/4" adapter Weight: 2.1 oz. (59 g)- Previous page On The Graph And To The Ear
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Hi .. here is a belated 2007 comment on the Sennheiser PX 200. It arrives now as I just received a non-returnable pair for Xmas to use with my iPod Touch.
I have never used headphones much.. but .. your review seems to me to be dead on. I know that there are better phones (e.g. the Grado SR 60/80 at al). However, as I "check the sliders" on the iPod EQ -- they seem to fill the mid-range hole that you have reported.
On close, they are pretty good -- but their closed design just cuts the kind of live ambience that you can get with a non-closed design like the Grado's.
The bass PUNCHES too -- just listen to The Eagles - Hotel California.