Electronics Expo offers the Yamaha 500-watt 5.1-Channel AV Receiver, model no. RXV373BL, for $249.95. Coupon code "GRANDSLAM" drops it to $190.02. With $19.99 for shipping, that's the lowest total price we could find by $40. Features include 100 watts per channel into five channels, Dolby TrueHD and DTS-HD Master Audio, four HDMI inputs, one HDMI output, USB port, and more. 

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Electronics Expo discounts select Harman Kardon home theater receivers via coupon code "GRANDSLAM", as listed below. With shipping starting at $19.99, each is at the lowest total price we could find by at least $46 and as much as $121. (Most models are also at the lowest total price we've ever seen.) The deals, with prices after coupon: Harman Kardon AVR-1565 350W 5.1-Channel 3D-Ready Receiver for $253.39 + $20 s&h Harman Kardon AVR-1650 475W 5.1-Channel 3D-Ready Receiver for $313.92 + $20 s&h Harman Kardon AVR-2650 665W 7.1 3D-Ready Receiver (pictured) for $514.20 + $30 s&h Harman Kardon AVR-3650 770W 7.1-Channel 3D-Ready Receiver for $628.81 + $30 s&h  

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Electronics Expo offers the Denon Over-Ear Headphones, model no. AH-D7000, for $998.99. Coupon code "MARCH2012" drops it to $549.18. With free shipping, that's the lowest total price we could find by $270. Features include a 5Hz to 45kHz frequency response, 13-oz. net weight, 118" cable, and more. 

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Electronics Expo offers the Harman Kardon Soundsticks II 2.1-Channel Speaker System for $108.88. Coupon code "LNY5" cuts it to $103.88. With $9.99 for shipping, that's the lowest total price we could find by $54. The transparent Soundsticks II feature two 10-watt satellites and a 20-watt subwoofer. 

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Electronics Expo offers the Sony 770-watt 7.1-Channel 3D Home Theater Receiver, model no. STR-DN2010, for $198. Coupon code "GOGREEN" cuts it to $190.08. With $29.99 for shipping, that's $10 under our October mention and the lowest total price we've seen. (It's also a current price low by $120.) Features include 100 watts per channel into seven channels, 24p True Cinema, BRAVIA Sync, four HDMI inputs with 3D compatibility, and more. 

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Electronics Expo offers the MartinLogan Dynamo 300 8" 150-watt Powered Subwoofer, model no. DYNAMO300, for $180.38. Coupon code "SOSORRY" cuts it to $115. With $19.99 for shipping, that's the lowest total price we could find by $160, although it was $35 less in August. It features 75 watts RMS (150 watts peak), 32Hz to 150Hz frequency response, and Low Frequency Effect (LFE) inputs. 

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Electronics-Expo offers the Sony HomeShare 802.11g Wireless Speaker Dock for Apple iPod / iPhone in Black, model no. NAC-SV10I, for $138.82. Coupon code "DEALNEWSAVE" cuts it to $115.69. With $9.99 for shipping, that's the lowest total price we could find by $32. (Most vendors charge $175 or more.) This speaker dock features 802.11g wireless, DLNA capability, Ethernet connectivity, remote control, and more. It supports nearly all dockable iPod and iPhone models. 

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Electronics Expo offers these AKG High-Definition Headphones, model no. K272HD, for $329.95. Coupon code "LSDA1003" cuts them to $143. With $9.99 for shipping, that's the lowest total price we could find by $35. Features include a 16Hz to 28kHz frequency response, self-adjusting headband, velvet earpads, and more. 

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Electronics Expo offers the Logitech Squeezebox Touch Network Music Player, model no. 930-000090, for $207.59. Coupon code "GOGREEN" drops it to $199.29. With $7.99 for shipping, that's $6 under our mention from three weeks ago and the lowest total price we could find by $43. The Squeezebox Touch streams music from your computer (PC or Mac) or online radio service (Pandora, Slacker, Spotify, or Rhapsody) wirelessly via 802.11g connectivity. Other features include a 4.3" 24-bit color touchscreen LCD, ambient light sensor, SD card slot, USB interface, Ethernet port, and more. 

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Electronics Expo offers the Denon DHT-1312XP 650-watt 5.1-Channel Home Theater System for $369.98. Coupon code "FOOTBALL" cuts it to $299.95. With $29.99 for shipping, that's the lowest total price we could find by $70. It features 650 watts of total system power into four satellite speakers, a center-channel speaker, and subwoofer, 1080p-compatible HDMI ports with 3D pass-through, HD audio decoding, and more. 

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Electronics Expo offers the Sennheiser HD 598 Over Ear Audiophile Headphones in Beige (pictured) for $249.95. Coupon code "SHOPEARLY" cuts them to $157.81. With $6.99 for shipping, that's $16 under last week's mention and the lowest total price we could find by $85. These headphones feature a 12Hz to 38.5kHz frequency response, 10-foot cord, and velour ear pads. Of note, Electronics Expo also offers the Sennheiser HD 650 Audiophile Open Dynamic Stereo Headphones for $499.99 before the above coupon, $315.84 after. With $7.99 for shipping, that's the lowest total price we could find by $176. Features include a 10Hz to 39.5kHz frequency response, aluminum voice coils, titanium finish, and more. 

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Electronics Expo offers dealnews readers the Polk Audio 3-Way In-Wall Speaker in Black, model no. 265RT, for $299. Coupon code "DEALNEWSAVE" cuts it to $139.97. With free shipping, that's the lowest total price we could find by $92. This speaker features two 6-1/2" drivers, 1" silk/polymer tweeter, 30Hz to 27kHz frequency response, 8-ohm impedance, and more. Note that this is for a single speaker only.  

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Electronics Expo offers the Infinity TSS-800 5.1-Channel Home Theater Speaker System in Charcoal, model no. TSS-800, for $263.67. Coupon code "BIGBEN" drops it to $221.93 with $29.99 for shipping. Even with shipping, that's $7 under our June mention and the lowest total price we could find by $27. Features include four 2-way satellite speakers each with dual 3-1/2" midranges and 3/4" tweeter, a 2-way center channel speaker with dual 3-1/2" midranges and 3/4" tweeter, 150-watt powered subwoofer, and five sets of brackets and tabletop stands. 

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Electronics-Expo offers the Canon SCA70 Digital Camcorder Case for $3.33. Coupon code "MAY4" cuts it to $3.20. With $3.99 for shipping, that's the lowest total price we could find by $13. It's compatible with Canon ZR500, 600, 700, 800, 830, 850, Elura 100, Optura S1, and DVD camcorders. 

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Electronics-Expo offers the Vivitek D508 DLP Projector for $279.39. Coupon code "GOGREEN" cuts it to $268.21. With $14.99 for shipping, that's $67 under our October mention and the lowest total price we could find by $113. Features include an 800x600 native resolution, 3,000:1 contrast ratio, 2,600 lumens brightness, 3D capability, USB connectivity, VGA and RCA inputs, and more. 

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