OLED is more resistant to vibration than VFD (vacuum screen);. 1pc of Music Spectrum Display Analyzer. Spectrum range: full audio range (20HZ~20KHZ). Audio input: <2V. Due to the difference between different monitors, the picture may not reflect the actual color of the item.
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Introduction H7PRO is a mini digital amplifier designed by Douk Audio, combining a compact design with exceptional performance. Adopting a TPA3255 amp chip, the power output up to 300W for each channel can effortlessly drive 4-8Ω speakers, delivering impressive sound quality. With single-ended RCA and balanced XLR inputs, preamp RCA output besides speaker jacks output, easily to build multi-channel systems. Two VU meters are added with pointer swinging in real-time with audio signal changes, to get both auditory and visual enjoyment.
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Maximum Current Sensitivity: 500uA ±10%, Internal DC Impedance: 650Ω ±10%, Insulation Resistance: 50MΩ. Backlight: 2.8 to 3.8V 120mA, white. Insulation Resistance: Greater than 50mΩ. 1 x Driver Board.
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Size: Panel Size: 47x47mm. Stable performance and high reliability.
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3, The circuit design is perfect with the following functions Mounting Hole Distance: 63mm x 37mm. Board Size: 74mm x 44mm. We are committed to resolve all issues in a friendly and satisfactory manner.
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I have very quickly tested these by inserting a signal directly into the full wave rectifier & all 20 of the 3mm square LED’s illuminate. Knowledge of electronics may / will be required to hook these up if your planning to add them to your project etc.
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Internal DC Impedance: 650Ω/500uA. If you do not receive our reply within 48 hours, pls. If you are satisfied with our service, pls. Color: As shown in the picture. Overall Size: Approx.62x56x84mm/2.44x2.2x3.31in.
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(With a resistor to limited the current for protect the LEDs). We'd like to settle any problem in a friendly manner. It's just take you 1 minute. Due to different producing batches, product details might be a little different.
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