With many people listening to music on mobile phones and laptop computers, manufacturers these days are careful to ensure that their headphones can be driven effectively by low-powered headphone amps. Broadly speaking, the acoustic level that a pair of headphones will produce in response to a given electrical input is a function of their sensitivity and their impedance. The more sensitive they are, and the lower the impedance they present, the more effectively they'll convert that electrical signal into acoustical energy. Most new headphone models therefore tend to have a nominal impedance of well below 100Ω. That of the NDH 20s is quoted as 150Ω, but they are also more sensitive than most, generating a quoted 114dB SPL for 1V RMS at 1kHz. They went plenty loud enough on every device I tried them with, with no discernible change in overall tonality (in contrast, headphones with very low impedance can be bass-light on low-powered amps). Cost of return – The costs of returning goods to Raycom shall be borne by you, the customer, in all circumstances without exception, unless otherwise agreed upon with Raycom. Let me now take care of this part of the opinion piece as this will be the answers to what most of us want to know. The NDH 30 was developed with the aim of making the reference sound of a Neumann studio monitor setup, perfectly calibrated via MA-1, available everywhere in the form of an easily transportable headphone. At the same time, the NDH 30 forms its own sound reference in terms of headphone reproduction, which has become a key to success with the consumer. Its superior sound characteristics make the NDH 30 the first choice for mixing and mastering. Thanks to its high long-term comfort, it is just as excellently suited to high-precision editing.

These headphones offer something unique.......it presents a very flat - neutral presentation with a lot of clarity and resolution. Neumann states that these headphones sound like their monitor speakers calibrated to flat in a treated control room. The NDH 30 can be folded flat for transportation, but there is no hard case. Neumann don’t publish frequency response plots for either model, but quote upper and lower limits of 34kHz and 12Hz for the NDH 30s. Without any tolerances, these figures are of limited value, and I doubt anyone will notice the differences compared with the NDH 20s’ alleged 7Hz‑30kHz bandwidth. What may be more noticeable is that the NDH 30s improve significantly on the NDH 20s’ already impressive distortion figures, taking THD from below 0.1 percent for a 1kHz input at 100dB SPL, to less than 0.03 percent. Whatever they’ve done, it’s worked, because these headphones sound really, really good. Drawing A Line As for mids-proper – wonderful! Clean, linear, and very detailed. In my opinion, it doesn’t matter how spectacular is any other aspect of a headphone if the mids aren’t right. And “right” is an understatement here. With the right recording, the Neumann NDH 30 deliver the goods here. TrebleThe NDH 30 are primarily designed to be the studio engineer’s tool for peering into mixes when monitor speakers are unavailable. What does it mean exactly? Sennheiser themselves, of course, are also well known both for microphones and headphones, but until this year, the Neumann brand has never encompassed headphones. That has changed with the launch of the NDH 20. The NDH 20 itself is a closed over-ear headphone which, according to the information provided by the manufacturer, offers a high level of sound insulation to keep the distractions of the outside world at bay. There’s also the promise of exceptional wearing comfort, while the manufacturing finish and materials utilised in production are also of a high standard. The headphones are equipped with two specially developed dynamic 38 mm drivers, delivering an impressive 1,000 mW of power, along with a max sound pressure level that exceeds 100 dB SPL.

These are Keepers and every one I sent a photo to is Jealous! they look like a piece of audio artwork, and well sound great. PS My new record that I just finished working on in a professional studio for the last 3 years sounds AWESOME with these phonesThe sound is nowhere near flat. The bass is super hyped and there is a weird peak around 3-4k. These factors make the headphones unsuitable for mixing/mastering purposes, and also a little bit fatiguing. I personally don't find them enjoyable either, even just for sitting down and listening to music. They are good but for the price, I definitely expected more. My favorite headphones (Sennheiser HD600s) cost half the price and deliver better in almost every aspect. Neumanns have better imaging and lower bass extension (which is too much for my taste). So if you're a bass head go for it, but if you listen to music with distorted guitars, be aware. The spatial resolution is impressive. The NDH 30 allows razor-sharp localization in the stereo panorama and makes the depth of the mix evident. To minimize channel crosstalk, the NDH 30 is supplied with a high-quality, cloth covered cable that is internally balanced. Part of a Successful Family It’s not an understatement to call Neumann a legendary pro audio company. Their microphones have been used by all kinds of celebrities – starting from a certain controversial Austria-born politician in the 1930s all the way up to now with Billie Eilish and others looking to make their mark upon the world with sound. The removable headphone cable is light but has this spring action to it that was annoying. I literally had to put something on top of it on my desk to keep it from interfering with my mouse. In the case of these headphones, you have a very (perceived) flat response, yet, the clarity is almost hyped.