Search found 498 matches

by emrr
Sat Jan 19, 2019 10:50 am
Forum: Pro Audio Design
Topic: modifying Yamaha MLA7 towards Trans-Amp-like circuit
Replies: 26
Views: 519

Re: modifying Yamaha MLA7 towards Trans-Amp-like circuit

I have lots of new stock JRC 4560s if you like the sound of the Mackie. Oh no, I put masking tape over the XLR inputs and started using other preamps 2 decades ago. I only used the tape input which bypasses all of that. Veer because I listened to this side by side with the MLA7 at the time. C135 an...
by emrr
Wed Jan 16, 2019 11:26 am
Forum: Pro Audio Design
Topic: modifying Yamaha MLA7 towards Trans-Amp-like circuit
Replies: 26
Views: 519

Re: modifying Yamaha MLA7 towards Trans-Amp-like circuit

Curiosity veer; I looked back at what Mackie was doing in the 8 bus series. I recall times I liked the Yamaha sound over the Mackie by a bit, it was probably the distortion on the loud rock bands I was tracking at the time.
Mackie 8 bus SCH_preamp.jpg
by emrr
Tue Jan 15, 2019 2:20 pm
Forum: Pro Audio Design
Topic: modifying Yamaha MLA7 towards Trans-Amp-like circuit
Replies: 26
Views: 519

Re: modifying Yamaha MLA7 towards Trans-Amp-like circuit

Control of DC output via the servo in figure 13-3: WHERE does that particularly matter? The inverter? Effect on THD? I don't think you'll need the servo since Rg is AC-coupled. JR, your POV makes sense to me on the servo. Servo and non-servo both look AC coupled. I'm failing to see the real point o...
by emrr
Tue Jan 15, 2019 11:34 am
Forum: Pro Audio Design
Topic: modifying Yamaha MLA7 towards Trans-Amp-like circuit
Replies: 26
Views: 519

Re: modifying Yamaha MLA7 towards Trans-Amp-like circuit

hahahahahahahahahahahahaaaaaaaa!! Wow. Dear JW/AU..... Got it, mostly....partly.... The Self book; somehow that fell off into a black hole in a blind spot, I've never seen it. Very clear descriptions. I found the documents for the next gen MLA8, and it incorporates those changes, moves to 4580 op am...
by emrr
Sat Jan 12, 2019 2:19 pm
Forum: Pro Audio Design
Topic: modifying Yamaha MLA7 towards Trans-Amp-like circuit
Replies: 26
Views: 519

Re: modifying Yamaha MLA7 towards Trans-Amp-like circuit

Thanks guys, will let this soak in a bit.
by emrr
Fri Jan 11, 2019 6:23 pm
Forum: Pro Audio Design
Topic: modifying Yamaha MLA7 towards Trans-Amp-like circuit
Replies: 26
Views: 519

Re: modifying Yamaha MLA7 towards Trans-Amp-like circuit

So the thing I've explained poorly: I think the reference is only the bit of including the transistors in the feedback path to lower distortion, like the trans-amp does. I think. I don't believe he's referring to the entire circuit. That seems to be what he's advocating with the Soundcraft console f...
by emrr
Fri Jan 11, 2019 11:40 am
Forum: Pro Audio Design
Topic: modifying Yamaha MLA7 towards Trans-Amp-like circuit
Replies: 26
Views: 519

modifying Yamaha MLA7 towards Trans-Amp-like circuit

I have a couple Yamaha MLA7 eight channel preamp units I used to carry for remote jobs. I found a mention from Jim Williams / Audio Upgrades about changing them to be more like the Trans-Amp circuit, and similar mentions about some Soundcraft input stages. He seems to famously tell you half the reci...
by emrr
Wed Jan 09, 2019 9:41 am
Forum: The Peabody Lounge
Topic: Zero Hedge: "What Gen Z Learned From Millennials: Skip College"
Replies: 12
Views: 225

Re: Zero Hedge: "What Gen Z Learned From Millennials: Skip College"

Autodidact here. I wish I had had the ability to suffer through formal education for many reasons, but just couldn't at the time. Probably better suited to it now. I'm always frustrated by people exploring simple electronics theoreticals online when they could answer the question for themselves on t...
by emrr
Fri Dec 21, 2018 12:20 pm
Forum: Pro Audio Design
Topic: simple stereo extraction from L+R and L-R mid-side?
Replies: 7
Views: 470

Re: simple stereo extraction from L+R and L-R mid-side?

So many synth and piano samples don't work in mono, they have 'enhanced' stereo phase issues. You can't even pan them in slightly without them falling apart. I remember a mastering session in which I'd done half a record, another studio the other half. One of the tracks from the other place had bass...