Neve 1073 preamp specs portable#
Neve 1073 preamp specs pro#
Neve 1073 preamp specs plus#

Neve 1073 preamp specs plus#

The Class A design 1073N microphone preamplifier has 3-band EQ (fixed HF plus two switchable bands with cut/boost capability) and a high pass filter. The quality is legendary.Дesigned and built in England, the modern-day 1073N is produced to the exact specifications of the original, matching components to ensure the sound remains true. Launched in 1970, the Neve 1073 Classic soon became the first choice mic preamp for leading producers and artists.ДЇound on some of the most famous recordings of the past 40 years, the big, punchy sound of the 1073 complements any musical genre - from rock to rap to classical.

Neve 1073 preamp specs portable#

I use either an LT1054 bipolar charge pump (for +-15V circuits) or a 1044/7660S-based 25V charge pump (for +24V circuits) for breadboarding.Mono Mic preamp/EQ Module with added portable standalone functionality

Neve 1073 preamp specs pro#

One thing that has made working with pro audio circuits easier is using the original PSU voltages, at least until I've got a good feel for the circuit. There are even some Spice sim files on the Github (although the original versions I DL'd had errors, so maybe check the documentation): It's much more doable than the original Neve circuit: There is a great DIY build called the 'Not Yet Another 1073 EQ' that I've played around with in LTSpice and on a breadboard. The 1073 EQ has been cloned and modified quite a bit, and one of the first steps is usually to remove the chokes & inductors.

tran command? Do those dashed lines around parts of the circuit serve a function in LTSpice or is it just for organization? Simulation is where I start as well, it's a great way to play detective on what's actually happening in a circuit and what sections are critical. That last LTSpice screenshot is absolutely ridiculous! Will it actually run a. Keep us posted on your experiments, and if you're looking for another preamp circuit to try, check out the Helios Type 69 Preamp: Reply Delete This GroupDIY thread talks a bit about the gain staging: It might be worth trying that for a smoother-sounding overdrive sound. It looks like the 1073 uses 2x BA284 stages, the first of which feeds into the second at higher gain switch settings. You should be able to see the rotary gain switch wiring w/resistors a lot more easily on the AML schem, which I couldn't figure out for the life of me on the original Neve block version. Analog Classics ez1290 (1073 w/o EQ or Line input). DON Classics NV73 (also has transistor reference voltages). I find it difficult to read the old Neve schematics that use letters & subcircuit blocks, but fortunately a lot of clone versions have schems that are easier to read.

That also might be causing your sudden clipping. A big supply voltage change like that has probably affected the transistor biasing, but can be adjusted with some resistor value changes. I wonder if you need to check the sim on +24V to compare the collector & emitter currents to the +9V version. Love this idea! I'm also in to adapting pro audio & synth builds for guitar, and it can definitely be a challenge to change the supply voltage, especially on finely tuned circuits like Class A amplifiers.

Avoid the insanely complicated Sensitivity switch (it's the input gain control, which sweeps all the way from mic to line level).

Yes I know, everyone says the transformers are a big part of the sound, but I don't care what everyone says, cause proper Neve style transformers are really expensive and large, and I'm not making an overdrive / fuzz pedal with really expensive studio grade transformers known for their low distortion

Maybe include some EQ from the Neve, but simplified to keep it pedal friendly.

PreferablyВ running at 9v, but I can live with something larger using a charge pump (the Neve runs at 24V).

ModifyВ / abuse a Neve preamp so it can be a fuzz orВ overdrive.

I ended up making one of these and boxing it up, and it's pretty cool. On the upside, it did get me interested in what other preamps were out there, and I had much better luck with the Revox A77, which is the same as a Trident A-Range mic preamp.

I will try the other amplifier sections and see if I have better luck with that. Came close, but just not worth spending any more time on.

Long story short - IВ couldn't come up with something that I was happy with using the mic preamp stage, so I haveВ walked away from this one for the moment. I kind of went down the Neve rabbit hole with this post, looking at how the channel amplifier works and trying to use the one of the preamp stages as a fuzz / overdrive.