RTB11 Mini Low Voltage Hybrid HiFi Headphone Amplifier SRH-03

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$59.500
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Quick Overview

RTB11 Mini 6N11+IRF630 Low Voltage Hybrid HiFi Headphone Amplifier
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RTB11 Mini Low Voltage Hybrid HiFi Headphone Amplifier SRH-03

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Description
RTB11 is a miniature hybrid hifi headphone amplifier works with only 24V power supply. The design is very simple and unique. RTB11  uses 6N11 as input stage and IRF630 as output stage. You can find a review of another headphone amp that has almost the same design writen by Steve:
http://bit.ly/pNOEXj

In the review Steve wrote:
"Even though the amount of burn in time has been rather limited the first impression I received listening to the amplifier was that is was warm and very musical."
"It was also quite articulate and tonal balance was quite good also. Bass extension was quite good but I would not call really deep and impact was above moderate. It did not seem laid back or forward. listening at different levels I did not hear any channel imbalances"
"Attack and decay are both quite well balanced. Resolution was above average and some of the most delicate details on some tracks I did not notice with other equipment actually came through. Overall depth and sound stage was well prestented as fairly deep and wide"
"This is a fairly decent little headphone amplifier."

RTB11 is an improvment of the amplifier mentioned in the above reivew. It use better components. Copper plated FR-4 PCB is uesed as the top cover, this offers better EMI performance and lower noise to RTB11. Better thermal stability is achieved by open the top of the heatsink to the air. A 3.5mm headphone jack is added to adapt with more headphones.

Features
- In Put Power: DC24V 500mA
- Input Sensitivity:50mV
- Input Impedance: 100KOhm
- Out-Put Impedance:32~600 Ohm
- Dynamic range: 84.6dBA((300 ohm) 89.8dBA(33 ohm)
- Gain:20dB
- Frequency response:10Hz-60KHz +/- 0.25dB
- Minimum THD: 0.016%(300 ohm) 0.45%(13 ohm)
- Signal/Noise Ratio >90dB
- RCA 2CH Input X1
- 6.3mm 2CH Output X1, 3.5mm 2Ch output x 1
- Dimension:95mm (D) X 90mm (W) X 32mm (H)

Product Photos
RTB11 6N11 hybrid headphone amplifier

RTB11 6N11 hybrid headphone amplifier

RTB11 6N11 hybrid headphone amplifier

RTB11 6N11 headphone amplifier

RTB11 6N11 headphone amplifier

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Price
Value
Quality
Part No.No
TypeClass D
IC used6N11, IRF630
No. of channles2
Power Supply24V
Output Power2.5Wx2
Gain Bandwidth20Hz-20kHz
THD1%
Gain-
Load Resistance32Ohm-600Ohm
Input Resistance>10k
Dimension (L x W x H)95mmx90mmx32mm
Effeciency-

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You're reviewing: RTB11 Mini Low Voltage Hybrid HiFi Headphone Amplifier SRH-03

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Price
Value
Quality