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尝颈蝉迟别苍颈苍驳听听

After unpacking and inspecting the amps鈥� controls and connections, I read the owners manual just to be sure I knew what I was doing. I connect hundreds of amplifiers each year, and I still think reading the manual is worthwhile, particularly if it鈥檚 the first time you鈥檝e ever connected a specific model. You鈥檇 be surprised at what you can learn. For example with the KS-AR9501D, I learned that the remote bass control was optional, and instead of a level control like the majority of brands use, it was actually a remote bass EQ control, similar to what Rockford Fosgate has used for decades.

Anyway, with my schooling鈥� done, I hooked the JVC amp into my reference system, and connected it to a pair of 4 ohm, 12鈥� woofers, which wired in parallel presented a 2 ohm load to the Arsenal amp. After adjusting the crossover and gain controls, and noting that I had to apply a bit more gain than what I鈥檇 consider normal, I sat down with a fresh mug of what my friends refer to as Cogent coffee, and began listening.

Beginning with some hip hop and rap tracks from Nine Inch Nails, 50 Cent, and Jay Z, and eventually progressing to better recordings by Frank Zappa, Rickie Lee Jones, and others which permitted me to judge the amps ability to produce details and bass articulation, the KS-AR9501D handled any type of music at virtually any level I cared to listen at. Deep and synthesized bass caused no strain or apparent lack of current, and the well recorded music was reproduced with very good clarity and definition. And with plenty of power on tap, I could simply turn it up until it was as loud as I liked it and the JVC amp delivered.

The crossover and subsonic filters seemed to work as intended, and the bass boost was available if I needed more鈥� but I didn鈥檛. I did note that I had to use a bit lower crossover frequency than normal, so I suspected the slope was -18dB, not the -24dB I鈥檓 more accustomed to.

When compared to other Class D amplifiers I have auditioned, the KS-AR9501D was very competitive in terms of power delivery and high end sonic performance. None of them will ever be sonically confused with a good Class AB design, but then again, the Class AB designs would need about double the amount of current than these good Class D amps require. So either way, there鈥檚 a compromise鈥� sometimes I wish I鈥檇 never taken physics!

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