Instruction/ maintenance manual of the product N HT's Xd Simaudio
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www . Stereophile .com, November 2005 N HT’s Xd system is what audiophiles hav e been sa ying they want: a matched loudspeaker system that optimizes the perfor- mance of its components for a real-w orld domestic listening envir onment. But with their dollars they’v e voted against just such systems for years.
N HT Xd T he basic Xd configuration tested here was: the XdA, a box containing four channels of pow er amplification and crosso v er/equalization for up to two satellites and tw o sub woofers; a pair of two-wa y XdS satellite speakers with stands; and the XdW , a pow ered bipole subw oofer module.
I first came upon D EQX (www .deqx .com) at the Consumer Electronics Sho w se veral y ears back. T he DE QX system measur ed the response of a speaker’s individual dri- vers and synthesized both dig.
Another was that the basic DE QX unit cost about $3000, and the price rose with the addition of A/ D, D/ A, and preamp-type controls. Y et another was the need to hav e a PC or laptop to do the number crunching for the mea- surements, calculations, and setup .
www . Stereophile .com, November 2005 N HT Xd the general design of class-D amps is well kno wn, the Po werPh ysics designs are claimed to offer better fidelity , especially in the higher frequencies,.
inv erted onto its stand, the cov er that protects the driv ers can be swapped for a fitted grille. Each XdS connects to the XdA with a color-coded cable terminat- ed, on each end , with a clearly labeled fit- ting bearing four banana plugs.
www . Stereophile .com, November 2005 N HT Xd But I was the real culprit: I was sim- ply too timid with the volume contr ol. Perhaps m y long-term bias towar d big speakers was making me treat this little system with condescension, but when I stopped babying the Xd, almost all of my r eservations about its performance went out the windo w .
quality of the XdW’s bass was competi- tive with an y of them. W hen I piped the stereo signal thr ough the Outla w ICBM bass-management system , all fr equencies below 40Hz w er e sent to my P aradigm Servo-1 5 sub woofer , which added a wal- lop to the bottom end that the Xd, as configured here, couldn’t duplicate.
two XdS satellites and tw o XdW pow er ed bipole subw oofers. T he XdA ’s equalization and filter para- meters are held in non v olatile mem- ory , and can be updated via a U S B link using a W indo ws XP program (pro vided y ou hav e Micr osoft’s .
ed on the XdA amplifier’s front panel. T urning off the amplif ier and turning it on again f ixed the pr ob- lem.) Repeating this tortur e test with the 1 50Hz crosso ver filters didn’t result in .
slight bump at 2kHz is gone, and the top two octa v es are betw een 1–3dB higher in lev el. T he r esponse now falls betw een ± 1 .25dB limits all the way fr om 80Hz to 1 6kHz , which is simply extraordinary in- room perfor- mance.
An important point after buying a device Simaudio N HT's Xd (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Simaudio N HT's Xd yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Simaudio N HT's Xd - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Simaudio N HT's Xd you will learn all the available features of the product, as well as information on its operation. The information that you get Simaudio N HT's Xd will certainly help you make a decision on the purchase.
If you already are a holder of Simaudio N HT's Xd, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Simaudio N HT's Xd.
However, one of the most important roles played by the user manual is to help in solving problems with Simaudio N HT's Xd. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Simaudio N HT's Xd along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
