(27-11-2012 22:48)oleg2566 писал(а): Уж лучше Киты IR, во всяком случае та все честно, хотя китайцы че то в звуке недопонимают
Мощность БП верю, но вот тот тонкий проводочек питания для Уся, еще и на таком разъеме.
Ладно, мое дело посоветовать
а чем смущает вас тонкий проводок? 6 ампер, судя по таблицам в гугле, спокойно пролазит через медь сечением 0,75. думаете, там в проводе меньше?
олег, а что такое киты IR?
как вы вообще оцениваете микросхемы семейства TDA7498 ?
видели такие решения? как оцениваете?
6 X 100Watt Class-D Audio Amplifier Board – TDA7498
i.ebayimg.com/t/6-X-100-Watt-6-Ohm-Class-D-Audio-Amplifier-Board-TDA7498-6CH-100W-Power-Amp-/00/s/ODAwWDgwMA==/$(KGrHqQOKjIE6T!Usgo,BOvOU+71BQ~~60_3.JPG [/img]
After 4*100W amplifier, Sure now is releasing a new Class-D audio amplifier which is capable of delivering sixth-channel amplification with each channel up to 100W. This amplifier is a state-of-the-art dual channel Class-D audio amplifier which integrates TI’s TDA7498 as the driver. High quality and high performance components are used making this amplifier high-quality amplifier. Powered by 14V to 39V supply, it can be used in many ampplications like Active Speaker and Home Systems. It also features short-circuit and thermal protection. In addition, on-board heat sink and cooling fan ensures excellent heat dissipation.
Features:
Size: 152.40 (L) × 120.40 (W) × 53.30 (H) ±0.2mm
A perfect "Class D" architecture
Gain adjustable–four fixed gain settings: 25.6 dB, 31.6 dB, 35.1 dB and 37.6 dB
Line level audio signal input
Externally synchronizable
Mounting holes facilitate installation and fixing
Several wiring methods facilitate connection
Excellent heat sink and powerful cooling fan eliminate your worry on heat dissipation
Over/under voltage turn off
Over current protection
Over temperature protection
Specifications:
Power supply: 14V to 39V
Crosstalk: 70dB 1 kHz
Total quiescent current: typical 40mA
Frequency response: 22Hz to 22KHz
Total input noise: <50μV@f = 22 Hz to 22 kHz
100W output power @THD = 10%, 6 Ω 36 V
80W output power @THD = 10%, 8 Ω 34 V
Operating Temperature: 0℃ to 50℃
Storage Temperature: -20℃ to 85℃
Applications：
Home Active Speaker
AV Receiver
DVD Receiver
Mini Combo System
Package Contents:
6 X 100Watt Class-D Audio Amplifier Board – TDA7498 × 1
есть еще такие наборы
i.ebayimg.com/t/2-X-100W-Class-D-Audio-Amplifier-Combo-Kit-w-36V-350W-Power-Supply-TDA7498-/00/s/MTIwMFgxMjAw/$T2eC16VHJH8E9qSEWJ,iBQWDu-rY,!~~60_12.JPG[/img]
блоки питания аж на 350 ватт
Цитата:2 X 100W Class D Audio Amplifier Combo Kit Starter
Combo Product Number: 1AA904
This is a combo kit combined with a 2 x 100W Class D Audio Amplifier Board and a 36V 350W Power Supply. This kit helps you build your own system in the most convenient way with full potential released of this amplifier. Meanwhile the total cost is lower than the seperated ones which makes it also a high cost-efficient option.
Amplifier Board
This amplifier is a state-of-the-art dual channel Class-D audio amplifier which integrates TI’s TDA7498 as the driver. This amplifier is capable of delivering dual-channel amplification with each channel up to 100W. High quality and high performance components are used making this amplifier high-quality amplifier. Powered by 14V to 39V supply, it can be used in many ampplications like Active Speaker and Home Systems. It also features short-circuit and thermal protection. In addition, on-board heat sink and cooling fan ensures excellent heat dissipation.
Product Number: AA-AB32189
Outline Dimension: 152.40 (L) × 120.40 (W) × 53.30 (H) ±0.2mm
Net Weight: 390g / 13.8oz
Features and Benefits:
- A perfect "Class D" architecture
- Gain adjustable–four fixed gain settings: 25.6 dB, 31.6 dB, 35.1 dB and 37.6 dB
- Line level audio signal input
- Externally synchronizable
- Mounting holes facilitate installation and fixing
- Several wiring methods facilitate connection
- Excellent heat sink and powerful cooling fan eliminate your worry on heat dissipation
- Over/under voltage turn off
- Over current protection
- Over temperature protection
Applications:
- Home Active Speaker
- Home Theater Receiver
- Multi-channel Distribution
- Active DVD System
- Mini/micro Systems
Electrical Characteristics:
- Power supply: 12V to 39V
- Crosstalk: 70dB 1 kHz
- Total quiescent current: typical 40mA
- Frequency response: 22Hz to 22KHz
- Total input noise: <50μV@f = 22 Hz to 22 kHz
- 100W output power @THD = 10%, 6 Ω 36 V
- 80W output power @THD = 10%, 8 Ω 34 V
- Operating Temperature: 0℃ to 50℃
- Storage Temperature: -20℃ to 85℃
Power Supply
Product Number: PS-SP11216
Net Weight: 904g /31.89 oz
Specification:
- External Dimension(mm):214*114*50
- Output Voltage: 36V
- Output Current: 9.7A
- Voltage Range: 110/220V
- Protect Over Load :105%~200%
- (Constant current limiting, recover automatically after fault condition is removed)
- Protect Over Voltage:115%~135%
- (Shut down O/P voltage,repower to recover)
- Working Temperature: -10 to 50 centi
