Yes and no. The Texas Instruments NE5532 was used in just about everything since the 1980s as it was THE standard for low noise audio opamps, the NJM is a JRC copy. JRC make a lot of good quality opamps, for example the Objective2 amplifier uses JRC opamps exclusively, x2 NJM4456, x1 NJM2068 and a NJM2903, reason being they are decent quality and cost less than $1 each.
I would take a genuine NE5532 over an NJM any day, and oddly the TI is $1.10 vs $1.28 for the JRC on Mouser, go figure.
Having said that i always bin the 5532's and replace them with the LM4562 lol. The 4562 was the first opamp to dethrone the 5532 as the gold standard and outperforms it in many areas, specifically being a much faster opamp. It is a direct replacement in 90% of cases unless the amp PCB is lacking decoupling capacitors, and it is perfectly happy working in unity gain (i.e. 1x). This tube amp was originally a 5532 based unit which i swapped out for the 4562, and note the two bypass caps i had to add as the original amp didn't have any
Only catch is its more expensive, $3.48 on Mouser.
Sonically i find the 5532 a little brittle, where as the 4562 has a little more meat to the bones if you like. Being a faster opamp i find tends to show up with better clarity and resolution. The 5532 is leaner sounding, and a little too metallic for my tastes. Interestingly thats the exact same problem i have with the stock Objective2, despite what all the fanboys say it just sounds dull and lifeless to me. It may appear as more transparent at first but i would be curious to see what you think given time, i'm going to wager you will go back to the 4562
The only other opamps in the same league are the Burr Brown OPA range but personally i find them a little too warm and artificial. Commonly people rave about them and say "the bass is amazing!" which says it all to me, ideally you shouldnt be listening to the opamp at all. I prefer to let the tubes do the talking
