This man here is the modern equivalent of Dave Wilson or Dan D' Agostino. This relationship with Leif and Thiel & Partner is the biggest breakthrough for loudspeakers this decade. Mark my words. You'll see much more of this in the future. Takes what Dave Wilson did with your speakers and puts it in a planar more attractive package by solving the original problem of time alignment in the soundsource: the drivers.

Sweden are big in hifi.... love it 🇸🇪

Those Marten speakers are killer 🎉🎉🎉🎉 love the way they look

I have the Marten Django XL, their old entry level speakers. I emailed them about the speakers and they answered every question I asked every single time. Their customer service is top notch.

As Leif mentioned, aside from the drivers...the magic of Marten is in their first order crossover design...despite they being 3 or 4 way speaker designs across their range. Hard to pull that off! As a result their 'Coherency' is by far the best I have experienced of any multi-driver full range speakers, so far in my journey. Makes you want to sit in your listening chair for hours on end...and forget time and family 😊. Thanks for showing the Mingus Septet in action. Was curious about it!!

@mahasidha9

Жыл бұрын

First-Order Filters: Panacea or Pain? As mentioned, the Thiel CS 2 2's crossover features first-order, 6dB/octave slopes. Many audiophiles state, without specifying why, that first-order slopes are "the best." A first-order crossover is unique in that it offers the minimum phase error through the crossover region between the two drive-units, hence the best time-domain behavior (least ringing and overshoot). The drive-units also work in phase outside of the crossover region in a time-coherent manner; ie, they are both in phase and in time-step with the input signal. More complicated crossover filters, such as the popular fourth-order Linkwitz-Riley, allow the drive-units to be in phase in the crossover region, but at the expense of the overall time coherency: the drive-units may have the same acoustic polarity, but only because one has had its phase rotated through 360°; it therefore lags the input signal by that amount of phase shift. The downside of first-order crossover filters is that they offer the lowest out-of-band rejection of any. An octave above or below the nominal crossover frequency, the driver's output has only been halved (reduced by 6dB), compared with a fourth-order filter's reduction in output to just 1/16 (reduced by 24dB). Any drive-unit problems that are nominally out of its passband-a tweeter's fundamental resonance, a woofer's cone breakup modes-will therefore still affect the sound quality of a speaker using a first-order crossover. The drive-units must therefore be much better behaved overall than normal. Second, what matters is the ultimate acoustic slope of the crossover filter after being transduced by the drive-unit. Merely driving a woofer through a series inductor will not in itself result in a first-order rollout if the driver itself inherently rolls out with a 6dB/octave slope above the crossover region, which is often the case. The ultimate slope in this case will be 12dB/octave, and the design will no longer be time-coherent. In a speaker using a true first-order crossover, the drive-units must therefore maintain their flat response well beyond their nominal passband. In addition, the drive-units' impedance must not vary too much with frequency from its nominal value, as this, too, will, affect the ultimate slope. Third, because of the shallow rollout slopes and the fact that the drivers are, of necessity, vertically separated in space, a speaker using first-order slopes will have an overall frequency response critically dependent on listening axis, due to the very broad overlap between adjacent drivers. The distance from the listener's ear to each of the drivers must be equal for their outputs to add up in a time-coherent and flat-amplitude manner; if not, there will be nulls in the amplitude response at the frequencies where the difference in distance equals one half-wavelength. Another way of looking at this is that two drive-units used one above the other on a flat baffle, crossed over with first-order filters and connected with the same electrical polarity, will have a listening axis downtilted from the horizontal (by about 15° for a typical two-way design). Reversing the electrical polarity of the tweeter will tilt the main response lobe up by the same amount, implying that the speaker would then sound and measure okay on a shorter-than-normal stand. The time-coherent nature of the first-order crossover would, however, be compromised. A designer intending to use first-order slopes must therefore choose the listening axis, then carefully slope or step the speaker's front baffle (or place the tweeter below the woofer) so that the outputs of the drivers do indeed sum correctly in both time and frequency domains on that axis. I hope it is obvious that deciding to design a speaker with a first-order crossover is not the simple business that many audiophiles feel it to be of just using a single series element in the feed to each drive-unit. Nevertheless, in the hands of a talented, careful designer-Jim Thiel, Richard Vandersteen, and Robin Marshall of Epos are probably the leading practitioners-such a speaker can be arranged to have flat frequency response and time-coherent performance.-John Atkinson

@DynamicAudio

Жыл бұрын

@@mahasidha9 Yep agree...it is very hard to get the first order crossover designs to work...too many variable to contend with...Requires a systems level thinking to get it right. Most designers won't even try 😊. Thanks for sharing the article.

Great interview, Jay. Beautiful speakers!

Just wait until Jay gets to hear the Coltrane Momento 2. Suffice to say those Wilsons are in serious trouble.

I get a great happiness from their company

This guy looks strikingly like John Candy in Trains, Planes, and Automobiles. Does he sell curtain rings as well? NIce sound!

So clear sounding I want those

Excellent

Really enjoying the interviews. Nice coverage.

Jim Thiel used them too; Since 1978 THIEL has employed first order (6dB/octave) crossover systems in all our Coherent Source speaker systems.

Hard for my Swedish brother from another to compete with the late, great Jeff Beck

Cool

Try the Coltrane model…

The sound is so bad through a smartphone, have you ever considered to use two stereo microphones for your interviews

108,000 euros , for 2 music speakers. 17 years of working in psychiatry and I am discovering new heights of madness in this sheikster industry. Then again you have women happy to fork out 18,000 euros for a Hermes handbag that costs about 300 euros in leather and hardware.

$100k Marten speakers...just another example of more OVERPRICED trash with their "diamond" tweeters...LOL!