Monday, October 30, 2006

My Home Theatre System - Part II

The second part of this series describes the speaker configuration in my home theater system. As described in the first part, the speakers are driven by the eminently capable Yamaha R-V1103 multi-channel receiver. The speakers play a key role in the home theater system as they are ultimately responsible for sound delivery where the 'rubber hits the road' so to speak.

Front Speakers: My main front speakers are the Infinity Compositions Overture OVTR1 series of speakers. The Overtures are a 3 way full range set of speakers with an active side firing woofer - which means that these speakers need to be externally powered to drive the bass. Covering a frequency range of 35~20,000 Hz with a sensitivity of 92 dB at 1m/2.83 V with an 8 ohms impedance, the speakers do a great job of filling the room with clear crisp sound.

The 3 drivers that make up the speaker are:
Low Frequency: One 8" (200 mm) high efficiency, ultra-linear long throw magnetically shielded woofer.

Mid Frequency: Two 4" (100 mm) high efficiency, magnetically shielded mid-range drivers

High Frequency: One 1" (25mm) soft dome high efficiency, neodymium magnet, magnetically shielded tweeter

Amplifier Requirements: 10-100W @ 8 ohms
Crossover Frequencies: 300 and 3000 Hz
Peak Output: 250VA
Power Consumption: 150W (max), 7W (standby)
Width x Height x Depth: 5 3/4" x 12 1/2" x 12 1/2"
Weight: 13 kg

The Overtures are mounted on speaker stands that also come from Infinity and look pretty cool.

Center Channel: My center channel is the Infinity CC3 which is a low profile speaker system with two low and mid range drivers and a tweeter for high frequencies. This speaker has a frequency range of 80 ~ 20,000 Hz with the same sensitivity as the Overtures (91 dB @ 2.83 V and 1 m).

The drivers in this speaker are:

Low/Mid Frequency: 2 x 51 ⁄4" (125 mm) high-efficiency, ultra linear, long-throw, magnetically-shielded drive units

High Frequency: 1" (25 mm) soft dome, high-efficiency,neodymium magnet, magnetically shielded tweeter

Crossover Frequency: 2,500 Hz

The maximum peak output is 111 dB with an impedance of 8 ohms. The accompanying speaker stand allows a vertical tilt range of 25 degrees for ideal sound coverage whether placed on top of or below the television.

Rear Surrounds: My rear surrounds are the Infinity RS 5 floor standing speakers. These speakers feature Polypropylene Cones and Silk Dome Tweeters with co-injected woofer cones that are ideally suited for digital home theater sound. The Infinity RS-5 is a floor standing speaker with dual 6.5" drivers in D'applito configuration and a 1" soft dome tweeter.

Recommended Amplifier Power: 15-200W
Frequency Range: 35 ~ 20,000 Hz
Sensitivity (2.83V @ 1m): 92 dB spl
Nominal Impendence: 8 ohms
Bass: Dual 6 1/2" (160 mm)
High Frequency: 1" (25 mm) tweeter
Height, Width, Depth: 40 x 7 1/2 x 12 1/2"
Weight: 18 kgs

Active Sub Woofer: My home theater speaker system round up is completed by the Sony SA-WM40 - which is an active powered sub woofer with a 12" long throw driver in a bass-reflex (vented) cabinet. An onboard amplifier delivers 120 watts of power to the driver. The SA-WM40 sports both line-level and speaker-level inputs, as well as a line output for connection to additional subwoofers for even more bass. The crossover is variable from 50 Hz-170 Hz. This will help you to match this sub to the bass characteristics of your main speakers. The phase switch allows you to correct any phase conflict that may occur between the sub and your satellite speakers.

Type: Active Sub-Woofer (magnetically shielded design)
Speaker Unit: Woofer 30 cm diameter (12") cone type
Continuous RMS output: 120W
Reproduction Frequency Range: 20Hz to 170 Hz
High Feequency-Cut Off Frequency: 50Hz to 170 Hz
Phase Selector: Normal, Reverse
Input Jacks: Line Out (input jack pin)
Speaker Out: (output terminals)
Power Requirements: 120V AC, 60 Hz

1 comment:

Anonymous said...

hi, nice work.i'm interested in sony sxrd rear pros after reading some reviews.but seeing them in sony world, i was taken back. picture was extremely washed out, viewing angles pathetic.i,m confused. was it that sunlight playing havoc? room was an open space with glass screens.or was it the bulb that is going out? pls explain. i plan to use it in an oroom with windows open.