![]() ![]() Next week I'll review the 32- and 600-ohm versions of the Beyerdynamic DT 880 Edition and DT990 Edition headphones.Two days ago i ordered the Beryerdynamic dt 990 32 ohm headphones as my first pair of serious headphones, because i mainly planned to use them with my Ipod. The Beyerdynamic T-1 is a 600-ohm headphone, the Sennheiser HD-800 is a 300-ohm headphone no lower impedance versions are offered. It's worth noting that Beyerdynamic and Sennheiser's very best headphones are only available in high-impedance versions. If it's going to be a strictly stay-at-home headphone, high-impedance models from Beyerdynamic, Sennheiser and other brands should be considered. Summing up, if you're interested in headphones that'll be used with portable (battery-powered) music players and at home with a receiver or integrated amp, stick with low impedance, under 50-ohm headphones. However, if you plug in a high-impedance headphone to a portable device the voltage and current will be low, so the headphone won't play loudly at all, and dynamics will be reduced. ![]() Weidemann's explanation for why battery-powered devices perform best with low-impedance headphones is based on this: Most portable players use from 3-volt to a maximum of 5-volt batteries, that means the signal voltage at the output is low, but they can still deliver high current with low-impedance headphones, and the sound will be fine. Weidemann pointed out that while most speakers' impedance range covers a narrow band between 4 and 8 ohms (or 16 ohms on my Zu Druid V speakers) headphones can be as low as 8 ohms and as high as 600 ohms! That's why Beyerdynamic's high-end headphone amps like the A2 have a switch to optimize their sound for use with low- or high-impedance headphones. The high-impedance versions sound more transparent and clearer, bass definition is better, and the soundstage is more spacious. But if you'll only listen to them at home, go for the high-impedance 600-ohm versions, because to my ears the high-impedance DT 880 Edition and DT990 Edition headphones sound better than the 32-ohm versions. ![]() So sure, if you will use the headphones with portable battery-powered devices and at home with a receiver or amplifier, get the 32-ohm version. Each version, regardless of impedance, is the same price. My 600-ohm Beyerdynamic T-1 headphones' sound had extraordinary dimensionality with the Crack, and resolution of fine detail was terrific.īeyerdynamic is the only headphone company I know that offers models, like the DT880 and DT990 Editions for example, in three different impedances: 32-, 250-, and 600-ohm versions. I also noted that tube headphone amplifiers have a special affinity for high-impedance headphones my budget-priced Bottlehead Crack headphone amp sounds astonishingly good with my 300-ohm Sennheiser HD 580, and 150-ohm HD 700 headphones. I used my solid-state NAD C 316BEE integrated stereo amplifier for most of my high-impedance headphone listening tests. ![]() Sennheiser and Beyerdynamic are two companies that offer high-impedance consumer headphones with up to 600 ohm-rated designs. High-impedance models are much better suited to home than on-the-go use. Low-impedance (under 50 ohm) headphones will play well at home with your receiver and on-the-go with your smart phone, and that's why the vast majority of in-, on-, and over-the-ear headphones are low-impedance designs. ![]()
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