9i-806 “Little Silver Fox" headphone Amp
The difference between 9i-806 and 9i-906:
1: 9i-806 uses potentiometer for volume contrl and 9i-906 uses Volume IC Muse72320+ OP Muse02
2: 9i-806 use a smaller transformer than 9i-906.
3: 9i-806 use some cheaper components than 9i-906.
9i-806 "Little Silver Fox" is a headphone power amplifier with high performance, strong power supply and high current output. It's circuit design is complex and perfect , 4 pairs of high-power British FET are used in output part , the output power is 30Ω/15W. Ultra low sensitivity headphones can also be driven with excellent audio performance.
It has four output modes: Normal, Balanced(BTL), Virtual Ground(Active G) and Parallel, as well as three low resistance modes and one high resistance mode. A variety of headphones can be matched .
It has two balanced and two unbalanced inputs . Even if you input an unbalanced signal, the internal circuit will convert it into balanced signal . Therefore, even if you input an unbalanced signal you will also get the maximum output power.
For the best sound quality, a balanced input is highly recommended unless you only have unbalance signal.
"Little Silver fox" has four output interfaces: 4 pin XLR balanced, 6.35 single X2 , 4.4 balanced as well as double 3 pin XLR balanced .
2： Operating instructions:
"Little Silver Fox" is a pure headphone Amp and the operation is very simple. There are only several function keys: power switch, input selection, output mode selection , high/low resistance selection.
Long press the out key to switch between high and low resistance modes. There are four kinds of headphone impedance options for choice : high resistance, low resistance 1, 2 , 3. You can selected any mode according to the characteristics of the headphonet as well as sound quailty you hear . High resistance mode is recommended in most cases.
If you use ultra-high sensitivity headphones such as earbuds, you may hear a slight noise. Don't worry, Silver Fox has 3 low gain modes for you to choose from. You can choose one of the low resistance 1-3 modes and the noise will be eliminated.
3： Performance parameters:
Power: 15W (30 Ω BTL, distortion 0.02%)
Frequency response: 20-20KHz (0.2db)
Net Weight: 6.9kg
GRoss Weight: 8.1kg