The HP is for Harry Pearson, of course, as with the JansZen Z-412HP introduced in the early 1970′s, with extended bass that pleased Harry, who knew what people like, then becoming the most popular JansZen model for a decade.
As we all know by now, an active speaker optimizes amplification, which reduces the height of the pile of gear, solves the best amplifier match problem, and eliminates cables, while bi-amplification with a steep crossover minimizes acoustical interference between drivers, and EQ smooths the response. We use the EQ to null out the minor cabinet and floor effects, so the response is both unusually flat and electrostatic-smooth-and-clear.
The HP version looks the same, but has long throw woofers that use spare power and EQ from the built in amplification system to push the bass to 20 Hz (-3 dB in room). Even at 10 Hz, due to the sealed enclosure, the output is only down about 8 dB. The experience is like running subs that are placed coincidentally with the mains, which is basically what this is. The effect is very satisfying, and there isn’t a whole new set of placement issues that would come with separate subs.
As with the plain zA2.1A, the speaker is internally bi-amplified, and the crossover and EQ are electronic. For computer audiophiles and others who favor a simple system, the amplifiers can be driven directly by source gear, such as a DAC, audio server, wi-fi receiver, etc.. The amplifier’s input sensitivity has the advantage of being adjustable, however, and can be set high enough to let the speakers be driven full scale, even by a portable player.
If the hotel Wi-Fi can support it, a fun part of the demonstration will be playing CD quality audio with HD video on a 60″ plasma from Tidal on my iPhone.
The zA2.1A-HP ships from the factory with four pushbutton selected sonic profiles. The standard selections are:
1) Natural – correct tonal balance when played at realistic levels, from 30 Hz to 30 kHz
2) Quiet – compensates for ear sensitivity differences at lower volumes
3) Natural Near Field – gives proper driver convergence at close listening distances
4) Quiet Near Field – for quiet listening at close listening distances
JansZen can ship the zA2.1A-HP with one or more special sonic profiles, custom developed for practically any situation. A few examples would be: for occasional listening from another room; to match a hearing aid contour; for rooms with strong acoustical influences.
Pricing ranges from $14,365 – $15,345 / pair, depending on finish.