Instruction/ maintenance manual of the product 4.1t Infinity
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16 THE AUDIO CRITIC Floor-Standing 4-Way Speaker with P owered Subwoofer Infinity “Intermezzo” 4.1t Infinity Systems, Inc., a Harman Interna- tional Company , 250 Crossways Park Drive, W oodbury , NY 11797. V oice: (800) 553-3332. Fax: (516) 682-3523.
ISSUE NO. 28 • SUMMER/F ALL 2002 17 describe the subject of this issue ’ s loud- speaker review , the Infinity “Inter- mezzo ” 4.1t, by appropriately tying together function and music.
18 THE AUDIO CRITIC mode tracking po wer supply po wering a class-AB amplifier . The power supply ’ s output voltage tracks the audio signal in such a way as to mini - miz e output device power dissipation. Quoting the 4.1t’ s owners manual: “The result is an extremely efficient audio amplifier that does not compro- mise audio performance.
ISSUE NO. 28 • SUMMER/F ALL 2002 19 The I ntermezzo 4.1t ’ s horizontal and vertical off-axis frequency re- sponses ar e shown in F igs. 2 through 4, r espectively . The horizontal off-axis cur ves with 15° increments in F ig. 2 are well-behaved but exhibit r olloff above 12 kHz at angles of 30° and be- yond.
20 THE AUDIO CRITIC woofers using 12" to 15" diameter dri - vers indicate a ratio of about 28 dB be- tw een the nearfield sound pressure and that measur ed in the farfield (usually 2 m gr ound-plane measurements, which correspond to 1 m free-field measur e- ments); i.
ISSUE NO. 28 • SUMMER/F ALL 2002 21 Use and Listening T ests Although each Infinity Intermezz o 4.1t is quite heavy at 93 lbs., they were r elatively easy to unpack and move ar ound. Without spikes at- tached, they could be walked ar ound on my listening room ’ s carpet without much difficulty for positioning.
22 THE AUDIO CRITIC fr equency , level, and width, are on the front of each system, accessible with a supplied screwdriver through small holes. N ow to the inter esting part: how did they sound? In a wor d, excellent! Interestingly , their sound was ex- tremely close to my refer ence system ’ s on almost everything I listened to.
An important point after buying a device Infinity 4.1t (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Infinity 4.1t 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 Infinity 4.1t - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Infinity 4.1t you will learn all the available features of the product, as well as information on its operation. The information that you get Infinity 4.1t will certainly help you make a decision on the purchase.
If you already are a holder of Infinity 4.1t, 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 Infinity 4.1t.
However, one of the most important roles played by the user manual is to help in solving problems with Infinity 4.1t. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Infinity 4.1t 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
