Question 1

Are these as good as Beats by Dre?

Accepted Answer

Beats by dre has a tuning that can be summarized as a trainwreck. 
Beats by dre have bloated bass and poor upper range that sounds completely unnatural and not clear at all. Sennheiser hd600's are a reference class headphone; which means they're tuned to be as natural as possible. They have what is referred to as a "ledgendary" tuning (which i agree with). 
If you like to hear what you're listening to in all its detail, then hd600's are the better option. If you don't care about quality at all, and only like poorly executed bass, then the beats are the better option. 
In my opinion, beats is outclassed even by cheap chinese audio brands like moondrop and tangzu. Beats can't even compare with sennheiser as a brand, let alone headphone vs headphone. 
Its like asking if someone who has never played a game is as good as a pro. Hd600's will last you for life and are all you need for good quality sound. 
However, you will need an amplifier (apple dongle for example) to get these to a loud enough volume.

Question 2

sound leakage

Accepted Answer

Ok, I am in my mid 50's and I do not blast the volume so keep that in mind, as a reference on my iPad I listen with the volume at about 2/3 and on my iPod classic the volume is just over 1/2. The sound leakage does not bother my wife (she is easily bothered by my music) with her sitting 5-6 feet away. Along the same vein the headphones do not block outside sound, if you pause the music you can easily carry on a conversation without taking them off. Hope this has some usefulness.

Question 3

bass response?

Accepted Answer

I'll put it this way: These cans play the song that was recorded the way it was recorded. If the artist didn't make it thump these won't make it thump. So if you want your headphones to add bass that wasn't recorded by the artist then these won't do that. These play EXACTLY what was recorded. So if you don't like the bass response of these then you are a person that likes your music with added bass that the artist never intended.

Question 4

Where is this Sennheiser HD 600 made ?

Accepted Answer

Sennheiser has a manufacturing plant in Ireland where some models of their headphones are made.  The product sheet for my pair of HD600s was printed in Ireland and the general word on the street is this model is made there.  The HD800 is currently manufactured in Germany but most of the other models are made in Ireland with a few in China.  A Google search of 'HD6600 made in Ireland' will get you some discussion boards on this subject.  Hope this helps.

ASIN	B00004SY4H
Amazon 売れ筋ランキング	家電＆カメラ - 176,772位 ( 家電＆カメラの売れ筋ランキングを見る ) オーバーイヤーヘッドホン - 708位
GTIN (Global Trade Identification Number)	04044155249545
Sensitivity	97 dB
UPC	615104044654 615104340459
おすすめ度	4.7 5つ星のうち4.7 (3,040) var
お客様の年齢層	大人
インピーダンス	300 オーム
カラー	ブラックグレー
ケーブルの特徴	脱着式
サイン入り	いいえ
シリーズ番号	600
ノイズ制御	アクティブノイズキャンセル
ブランド名	ゼンハイザー(Sennheiser)
ヘッドフォンの耳が当たる位置	オーバーイヤー
ヘッドフォンジャック	3 .. 5 mm ステレオミニプラグ
ヘッドホン/イヤホンスタイル	オーバーイヤー
メーカー名	ゼンハイザー(Sennheiser)
付属品総数	1
保証内容	国内2年保証（amazon.co.jp以外のセラーからのご購入は保証対象外）
原産国	ルーマニア
同梱商品	アダプター
周波数応答	40500 Hz
商品の追加説明1	ユニバーサル, 軽量
商品の重量	0.02 ポンド
商品外装素材	プラスチック
型番	HD 600
無線タイプ	Sans-fil
通信・接続インターフェース	有線

ゼンハイザーヘッドホンオープン型 HD 600【国内正規品】

Details

Details

Description

Specifications

Common Questions

ゼンハイザー ヘッドホン オープン型 HD 600【国内正規品】

Details

Details

Description

Specifications

Common Questions

ゼンハイザーヘッドホンオープン型 HD 600【国内正規品】