SPECIFICATIONS

Brand Name: NoEnName_Null

Compatible Audio & Video Equipment Style: Earphones & Headphones,Amplifier

High-concerned chemical: none

Origin: US(Origin)

The output current of NE5532 OPA2604 and other general operational amplifiers is less than 50MA, and the output of OPA1611 + Class A expansion is up to 200MA, which greatly increases the driving force, making the circuit have better matching, lower output impedance, high and low bass levels, dynamic So it performed very well

Based on 1611, this product adds 1 pair of NPN PNP complementary and symmetrical 500MA Philips low-noise tubes, which increases the output capacity by as much as 4 times, and operates in the Class A state.

Transparency, very good analytical power, wide sound field, better than OPA604

OPA1611 (single channel) bipolar input operational amplifier achieves very low noise density at 1kHz
(1.1nV / √Hz) and ultra-low distortion (0.000015%). OPA1611 and OPA1612 can provide rail-to-rail output swing within 600mV from the power supply rail under 2-k? 6? 8 load, which helps to maximize the dynamic range.

These devices support a wide supply voltage range of ± 2.25V to ± 18V, and the supply current per channel is only 3.6mA. The unity gain of the OPA1611 operational amplifier is stable, and it can maintain excellent dynamic performance under a wide range of load conditions.

Can replace OPA604 OPA627 NE5534

The following is a comparison of op amp indicators

Comparison of main signal-to-noise ratio:
OPA1611: Low distortion: 0.00015% (1kHz), low noise: 1.1nV / Hz
OPA604: Low distortion: 0.0003% (1kHz), low noise: 10nV / Hz