Direct replacements for NE5534

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youngie

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Joined 2012
#1
Hi all as the above titles asks. I brought a preamp modelled on the mbl6010 from AliExpress. What are people experience of the Phillips NE5534AN. From what I have read online there are some really bad reviews. Maybe someone can put some better light on this matter many thanks all
 
#2
If you used the NE5534 that came with the kit, i.e. off Aliexpress, then I'd say that there is little chance it's a real example. I'd fit a genuine NE5534 and see what happens.

The 5534 is still a world-class OA. Distortion is a little higher than modern OAs, but noise-wise, in some applications (phono pre, for example), it's still SOTA (40 years on!).
 
#3
The NE5534A is selected from the NE5534 production line for guaranteed noise performance, and mostly you see only 5543A's being used (since typically you only bother with them over the cheaper dual opamps for low noise).

All the _genuine_ NE5532/5534A chips perform very well, and have noise performance matched to impedances around 10k making them great for analog filters and volume circuits etc, ie exactly what you need in a preamp.

The only difference I know is that the TI version is a tad worse for distortion at high frequencies (from 10kHz upto ultrasonic), barely measurable in the audio band.

Anything from AliExpress may well have junk/counterfeit chips in it though - some measurements with a soundcard might be able to figure this out. Anyway a set of new genuine NE5534A's aren't that expensive.

Frankly I'd expect to see the dual NE5532's everywhere in a preamp except the MM phono preamp input where the lower current noise of the 5534A makes sense.

I'm not sure the exact trimming and compensation arrangement of the 5534 is used by other chips, a precise pin-compatible equivalent may not even exist, though if you ignore trimming there are likely a few with the same compensation cap pinout.
 
#5
Mark Tillotson said:
The NE5534A is selected from the NE5534 production line for guaranteed noise performance, and mostly you see only 5543A's being used (since typically you only bother with them over the cheaper dual opamps for low noise).

All the _genuine_ NE5532/5534A chips perform very well, and have noise performance matched to impedances around 10k making them great for analog filters and volume circuits etc, ie exactly what you need in a preamp.

The only difference I know is that the TI version is a tad worse for distortion at high frequencies (from 10kHz upto ultrasonic), barely measurable in the audio band.

Anything from AliExpress may well have junk/counterfeit chips in it though - some measurements with a soundcard might be able to figure this out. Anyway a set of new genuine NE5534A's aren't that expensive.

Frankly I'd expect to see the dual NE5532's everywhere in a preamp except the MM phono preamp input where the lower current noise of the 5534A makes sense.

I'm not sure the exact trimming and compensation arrangement of the 5534 is used by other chips, a precise pin-compatible equivalent may not even exist, though if you ignore trimming there are likely a few with the same compensation cap pinout.
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thank you for your reply. What would be considered good branded NE5534AN many thanks
 
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