HIFI 9988 HDAM9988SQ/883B dual transport upgrade HDAM8888SQ V4i-D AMP9922AT

Certification:NONE
Origin:CN(Origin)
State of Assembly:Ready-to-Go
Compatibility:All Compatible
Bundle:1
Camera Equipped:No
Model Number:HDAM9988SQ/883B

HDAM gold seal adopts copper thick film technology, which has superior heat dissipation. Each product is made with a feverish spirit that is almost pursued. It lays the foundation for good sound. There is no imitation. HDAM uses a copper shell without additional heat sink and other common OP gold seals. If you want to be larger, the dot on the side should be in the direction of the gap
Work heating tens of degrees, fake work has no temperature
The new copper has a high conversion rate and high bandwidth, and the machine is obviously better than the ordinary white version and the square version.
Genuine copper
HDAM fully discrete dual op amp, based on Marantz HDAM circuit, the input uses warm sound field effect tube precision pairing. Because of the large number of components, it can only be used in the discrete front stage. The board is very large, and it is often carefully designed. , The bottom area is similar to that of dual op amps, and the pins are familiar and compatible with NE5532 MUS02 OPA2604 LME49720HA, MUSES01, LME49720HA, OPA2107AP, etc.
Brand: Crown Discrete Device
Origin: Netherlands
Model: HDAM9988SQ/883B Low distortion and low noise audio operational amplifier
Specification: DIP8 double row eight-pin straight plug
Voltage: ±3V±24 V
Distortion: 0.0001% 1KHz
Speed: 55V/s
Bandwidth: 100MHz
Look for the red copper 9988 crown import op amp with SQ/883B version. Some domestic 9988 does not have SQ/883B as the mantissa.
Low noise dual operational amplifier
The new upgraded version of the Crown Op Amp Fully balanced, clean sound bottom, natural hearing resistance, high analytical power, large dynamics, deep low-frequency diving, full mid-frequency, warm and mellow human voice is sweet and moisturized, high-frequency transparent, delicate and smooth
The op amp models that can be directly replaced are:
AD823, AD823AN, AD8066, AD8620, AD712, AD827, C4570, JRC4556AD, JRC4580, JRC5532, JRC5532D, JRC5534, LF353, LM4562, LME49860, LM833N, MUSES8920, NE5532, NEC4520, NEC4570, NJM558M2114, NJM4558D NJM4560, NJM5532, NJM4558P, OP275, OPA1612, OPA2277PA, OPA2132, OPA2134, OPA2604, JRC4558, RC4558D, RC4558P, TL052, TL072, MU