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Sennheiser HD800 Headphones With Cardas Audio Cable Review

Sennheiser HD800 Headphones With Cardas Audio Cable
Add in the must-have Cardas Audio cable and they're a screaming audio bargain.
Review By Phil Gold


  Sennheiser has thrown down the gauntlet with their new HD800 phones. They are challenging all comers to the crown of best of breed. And I take it as a personal challenge too. Can they wean me away from my long term allegiance to rival AKG? Can they challenge the supremacy of electrostatic phones with their dynamic design? How do they compare to the superb custom fit canal earphones from Ultimate Ears (UE-10Pro)? Will people pay well into four figures for headphones anyway? All this and more in this monthís exciting installment of the headphone challenge.

All phones have their weaknesses. For the AKG K701 (as reviewed here), the imaging falls short of the superb standards set by the exotic AKG K1000 (as reviewed here) ear speakers, and the deep bass response, though tuneful, is a little shy of ideal. The UE-10Pro does better in both of these areas, but is clearly a little rolled off on top and not as fast a transducer as I would like. The older and now alas unobtainable AKG K1000 is an impractical beast, requiring a speaker output to drive properly. But it images gloriously and is comfortable for long periods, although you do rather look like an alien is performing a brain probe on you as you listen. These three are the best phones I have heard to date, and I keep them all to hand. Youíll notice no mention of many peopleís favorite, the Sennheiser HD650 (as reviewed here). I have no room in my collection for uncomfortable headphones however well they might sound. Iíve always felt like my head was in a vice with the HD650, and its junior siblings, and I have also found the sound to be uninvolving. I have comfort issues with the high end Grados too. Now I have enjoyed the sound from various Stax electrostatics over the years, but they require special amplifiers to drive them and never really satisfy my yen for realistic dynamics. Sure, I love the resolution and the tone color, but where is the orchestral weight when you need it, and where is the deep bass?

So, happy as I am with the UE10Pro, K1000 and K701, Iím always on the lookout for something better, something that will give me the same feeling of involvement as my reference speakers, and something that I can wear comfortably during long listening sessions.

I have a feeling that somewhere off in Sennheiser HQ, thereís someone else who feels the same as I do, that feels the same frustrations with headphones as me, but the difference is, he can do something about it. Whoever that guy is, he deserves all the kudos, because Sennheiser has hit a home run. The HD 800 is the closest thing to perfect headphones I have ever come across. Rather than refining the HD650 to give us perhaps marginal improvements, Sennheiser has developed an entirely new design, allowing the best ideas from Sony, AKG and others to percolate through their labs and then making some radical new advances of their own.

Let me tell you about those new ideas.


Talkin' Transducers
First, letís talk about transducer. Sennheiser has developed a ring shaped transducer to provide a solid extended bass response but without the usual eigenmode distortions at high frequencies that accompany more conventional circular or conical drivers. The ring has a diameter of 56 mm, the aluminum coil 40 mm and the magnet system 42 mm, all the largest of their type. The aluminum windings, just 42 micrometers thick, are hand wound three and a half layers thick for a total of 98 windings in a 6mmm gap.


Sennheiser HD800 Headphones


Normally, the driver would be parallel to the side of the head, but learning lessons in imaging from the AKG K1000, the driver here is held at an offset angle to the head of around 15 degrees so that the sound comes from a position ahead of the ears, more like real life.

Such large drivers and the need to position them at an angle and away from the ears means the HD800 are of necessity large phones. To keep the weight down but the rigidity of the driver mounting high, Sennheiser has resorted to some exotic lightweight materials. They selected Japanese Alcantra for the earpads, while a lightweight stainless steel mesh protects the drivers without affecting the sound. The casing is made of an ultra rigid plastic, Leona, to minimize vibration. The padded metal headband incorporates an inner damping element and provides adjustment for size and angle. It weighs a hefty 330gm (11.6 ounces), but is very comfortable even for long listening sessions. As an open design, it doesnít heat up around the ears as much as closed models, and the Alcantra feels soft and luxurious. The pressure on the ears is very much lower than earlier Sennheiser high end phones. To my mind, the radical improvement in comfort levels is reason enough to be excited about these phones, since Sennheiser already had a good handle on the sound. Luckily for us, the sound is a quantum leap better than the HD650 offered, so there are two reasons to start jumping up and down. On the other hand, the price has more than doubled, so weíd better take a good listen to the HD800 before we can start talking about value for money.


The Comparo
The Sennheisers sound more like the fabled AKG K1000 ear speakers than any other phones I could lay my hands on - open airy and three dimensional in their imaging. But they go a lot further than that classic design. The level of resolution is considerably greater, the bass extends far lower and most importantly, the frequency response isnít tipped up. Itís balanced across an enormous range of frequencies, so that they sound much more like speakers than traditional headphones. Thereís an ease about them that reminds me not just of speakers in general, but great wide range speakers to boot. In fact you tend to forget about them and get really drawn in by the music instead. Mission accomplished.

Now there are phones with a superior bass response, and if youíre interested, Iím sure Grado would like to introduce you to their high achievers. There are also phones with even higher levels of resolution Ė think high end electrostatics from Stax. The K1000 still does the best job with image size and depth, by virtue of holding the earpieces even further from the ear and having greater adjustability than the HD800. So each of these designs can best the HD800 in a particular area, but none strikes a better balance through the whole range of attributes youíre looking for, and dynamically, the Sennheiser has them all beat.


Sennheiser HD800 Headphones


Like all the very best components, the HD800 doesnít favor one type of music over another. It excels in solo piano, pop, jazz, folk, chamber music, opera, spoken voice. In fact the only area where I cannot tell you it does really well is country music. Poppa donít allow no country music Ďround here, so I have no evidence one way or the other. Are they worth the price of admission? A resounding yes, just as the Ultimate Ears UE-10Pro and AKG K701 before them, my previous references. They win for sound quality, comfort and superb physical design.

But before you rush out to buy them, I have one caveat. You wonít get the kind of performance Iíve been talking about out of the box. You wonít get it by running them in for several hundred hours either. Youíll only truly hear what these babies are capable of if you replace the nice looking black mesh covered cables with some suitable after market replacement cables. Itís a similar story with many components you buy Ė the power cord that comes in the box doesnít tell you the full story. I tried a new replacement cable from George Cardas at Cardas Audio, a simple plug in replacement which makes a world of difference. Other vendors have their own upgrades available by now, but I can only vouch for the Cardas cable. Throw in the cable upgrade and youíre going to need to lay out over $1600, but thereís no speaker that can touch them for much under ten grand, so theyíre a screaming bargain.



Type: Headphones
Transducer: Dynamic, open
Ear Coupling: Circumaural
Frequency Response: 14 Hz  to 44 kHz (-3dB)
Nominal Impedance: 300ohms
Sound Pressure Level: 102 dB (1 Vrms at 1kHz)
Harmonic Distortion: < 0.02% (1 kHz, 1 Vrms)
Weight (without cable): Approx. 330 g
Contact Pressure: Approx. 3.4 N Ī 0.3 N
Connecting Cable: Silver-plated, oxygen-free (OFC) copper cable Kevlar reinforced
Cable Length 3 meters
Jack plug: 0.25-inch (6.3 mm) stereo
Warranty: Two years
Price: $1399.95


Cardas Headphone Cable for the HD800
Available in various lengths and terminations, balanced and unbalanced.
Review sample 10 foot with 0.25-inch plug $286


Company Information
Sennheiser Electronic Gmbh & Co
AM Labor 1
30910 Wedemark

E-mail: info@sennheiserusa.com
Website: www.Sennheiser.com



Cardas Audio
480 11th Street, S.E.
Oregon 97411

Voice: 541-347-2484
E-mail: cardas@cardas.com













































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