• WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!

The sound of vintage op amps

Cosmik

Major Contributor
Joined
Apr 24, 2016
Messages
3,075
Likes
2,180
Location
UK
Irony?

When demonstrating my speakers, I often put on Elton John's Rocket Man, as an example of a beautiful recording.

I just thought I would have a look at what equipment it was recorded on. Turns out it was an MCI 416 console heavily based on MCI 2001 op amps. In other words, the audiophile's worst nightmare. Even now, people build 'discrete' amplifiers to avoid the oh so terrible sound of integrated circuits. I wonder if it is the case that the whole mix eventually passed through one stereo pair of op amps?

I am always interested in early examples of technologies that, according to audiophile legend, don't sound any good now, so should have sounded absolutely terrible in their early incarnations 45 years ago. Early digital audio is another such technology. The recordings are still available, and they don't sound terrible.
 

fas42

Major Contributor
Joined
Mar 21, 2016
Messages
2,818
Likes
191
Location
Australia
Yes, early digital recordings are fine - I have a few Denon classical CDs, done in the absolute dawn of these technologies, which are perfectly fine. Why opamps can be a problem in playback systems is that they're working in an environment where the power supplies need to deliver high current pulses - something not required while recording.
 

Blumlein 88

Grand Contributor
Forum Donor
Joined
Feb 23, 2016
Messages
20,769
Likes
37,632
Op amps like many new technologies are said by audiophiles to sound bad. Then later get used. For so long op-amp based pre-amps and analog stages of DACs were thought inferior to discrete devices. Now, even the best of the best or at least most expensive use op-amps without mentioning it. Other than sometimes to mention they use some particular spec of op amp. There are $100k plus DACs using only op amps.

With recording consoles you have only scratched the surface. So much wire, so much switching, and transformers with not the greatest design are all over old mixing boards. Not to mention pots (as in carbon pots for level control). Though this one has Penny and Giles faders. Look at all the carbon resistors on that one. Of course people are discussing the character of it. I do wonder when people built those was it character they had in mind or just making so many things connect and work.
 
Last edited:

watchnerd

Grand Contributor
Joined
Dec 8, 2016
Messages
12,449
Likes
10,415
Location
Seattle Area, USA
Irony?

When demonstrating my speakers, I often put on Elton John's Rocket Man, as an example of a beautiful recording.

I just thought I would have a look at what equipment it was recorded on. Turns out it was an MCI 416 console heavily based on MCI 2001 op amps. In other words, the audiophile's worst nightmare. Even now, people build 'discrete' amplifiers to avoid the oh so terrible sound of integrated circuits. I wonder if it is the case that the whole mix eventually passed through one stereo pair of op amps?

I am always interested in early examples of technologies that, according to audiophile legend, don't sound any good now, so should have sounded absolutely terrible in their early incarnations 45 years ago. Early digital audio is another such technology. The recordings are still available, and they don't sound terrible.

Were you listening to an original recording, or one that has been remastered?
 
OP
Cosmik

Cosmik

Major Contributor
Joined
Apr 24, 2016
Messages
3,075
Likes
2,180
Location
UK
Were you listening to an original recording, or one that has been remastered?
A very good point: remastered - so the whole of the mix (that I am listening to) didn't pass through a single pair of vintage op amps.
 

Don Hills

Addicted to Fun and Learning
Joined
Mar 1, 2016
Messages
708
Likes
464
Location
Wellington, New Zealand
A very good point: remastered - so the whole of the mix (that I am listening to) didn't pass through a single pair of vintage op amps.

Sonce the remaster was done from the original master, it has passed through the same number of vintage op-amps as the original.
 
OP
Cosmik

Cosmik

Major Contributor
Joined
Apr 24, 2016
Messages
3,075
Likes
2,180
Location
UK
Sonce the remaster was done from the original master, it has passed through the same number of vintage op-amps as the original.
Well I was distinguishing between multiple tracks that have each gone through an op amp (or more) in the mixing desk when being recorded to tape, versus the final stereo 'mixdown' that, at the time, might have all been passed through a single pair of op amps, but now is being fed off the multitrack tape into something modern and digital (as watchnerd points out below). It's the passing of everything through a single op amp where the 'character' of the op amp would show up most, I imagine.
 

Don Hills

Addicted to Fun and Learning
Joined
Mar 1, 2016
Messages
708
Likes
464
Location
Wellington, New Zealand
Was the track remixed, or remastered? Remixing is where the multitrack is (re)mixed down to a master. Remastering is where the original master is re-equalised and re-compressed etc to a new master.
 
OP
Cosmik

Cosmik

Major Contributor
Joined
Apr 24, 2016
Messages
3,075
Likes
2,180
Location
UK
Was the track remixed, or remastered? Remixing is where the multitrack is (re)mixed down to a master. Remastering is where the original master is re-equalised and re-compressed etc to a new master.
Ah, maybe they're using the term wrongly, but it seems that the remasters of the Elton John albums are really remixes of the original multitrack tapes.

(You've reminded me that I used to make the distinction between "mix" and "master", and then the craze for "remastering" started, where albums were re-mixed, and I concluded that my original idea of what the term meant was wrong - thanks for "re-correcting" me :))
 
Last edited:

Don Hills

Addicted to Fun and Learning
Joined
Mar 1, 2016
Messages
708
Likes
464
Location
Wellington, New Zealand
Ah, maybe they're using the term wrongly, but it seems that the remasters of the Elton John albums are really remixes of the original multitrack tapes. ... :))

Yep, definitely re-mixed. Thanks. From the articles, my main objection is that the digitising appears to have been done to DSD (and, by extension, the mixing was done in DXD). :)
 
Top Bottom