Product characteristics:

High-frequency performance: The high-frequency resolution is excellent, the sound is relaxed and aura, and the string performance of violin, guitar, and harp is controlled by transients. It has better dynamics and density when driven by better equipment.

Mid-frequency performance: The vocal performance is relatively full, with good resolution and image formation, the voice is stretched, the vocal performance details are natural, the layers are clear, and the voice is clean.

Low-frequency performance: Low-frequency is strong, powerful, and faster, cleaner. Note: The overall voice and sound style are generally close, different equipment will be different, please be careful if you mind, thank you

Product Introduction：

This dual amplifier is made of fully discrete components, and the original imported 14 pairs of twin triodes, 4 pairs of triodes, and 2 pairs of medium power tubes are amplified. The components of the upper and lower layers of the board are basically the same, which can achieve better pairing.

CLASS A OUTPUT 15MA, maximum output is 65MA.

Because of this, the overall timbre and sound field are wide and full, the scene is grand and layered, the midrange is bright and clear, the density is large, and the low frequency is deep and elastic.

Op amp instead：

AD823,AD823AN,AD8066,AD8620,AD712,AD827,C4570,JRC4556AD,JRC4580,JRC5532,JRC5532D,JRC5534,LF353,LM4562,LME49860,LM833N,MUSES8920,NE5532,NEC4520,NEC4570,NJM2068D,NJM2114,NJM2214D,NJM4558,NJM4558D,NJM4560,NJM5532,NJM4558P,OP275,OPA1612,OPA2277PA,OPA2132,OPA2134,OPA2604,JRC4558,RC4558D,RC4558P,TL052,TL072,MUSES01,MUSES02,MUSES8820,MUSES8920, MUSES8832, BA15532

Specifications：

1、Supply voltage: ±6V to ±18V
2、CLASS A output current 15mA

3、Maximum output current 65mA

4、Fully discrete element 15(mm)

5、THD N: 0.0003% (1KHZ) - 112dB

6、Low noise: 3.6nV/√Hz at 10KHZ
7、Low open-loop gain: ~25dB
8、Size: 14.5mm*15mm*16mm

Method 1: The large white dot on the discrete op amp corresponds to the white dot and dot of the integrated op amp

Method 2: The lower left white dot on the discrete op amp is PIN1, and the lower left corner of the corresponding op amp socket notch is PIN1