The main component that pleases most people are the line transformers. I suspect most true Pultec units over both balanced and unbalanced inputs and outputs. Alas, if you are not near a strong EMF source, such as a broadcast xmitter, cell towers, high tension lines (multiple), etc, you might as well use the unbalanced lines -i.e., it won't matter as long as the Pultec output is NOT loaded by the receiving gear (digital or analogue recorders/converters, amps, other modification gear,etc). Audio is NOT like RF transmission, where all connection and devices must have impedances that exactly match (resonance is key with RF systems). With AF (audio) you only need to make sure your outputs are not being loaded by your inputs; -e.g. I use McIntosh Preamps ( heavily modified) with cathode followers that deliver 50,000 Ohms. E.g., My amplifiers are well over 100,000 Ohms (using EF 86 valves). In fact, a preamp output of 1 meg Ohm is a perfect load for the EF 86 circuit I designed. The EF 86's are so quiet that unloaded you can hear only a very slight and attenuated gaseous sound that vanishes the moment it is loaded by more than a few mega Ohms. There is no way 50K Ohms will be loaded by such a circuit, and there are no transformers. Pultec uses great I/O, line, trannies and this is one of the best things about them. They make great DI circuits. However, the only thing better than a great I/O transformer is NO transformer. No I/O transformer can be perfectly linear, but some x-formers have a pleasing curve for some instruments and/or music. Plutec used great trannies, but I have never heard a better I/O transformer than in the RCA gear (made by Western Electric) -broadcast or recording. RCA built much of their boards for use in either B-cast or recording. 'Tis gear, well worth rebuilding. The downside of Pultec uits is they are WAAY overpriced. Dear lord, any E.e. with a fair bench and a chassis can design and build such a circuit; -the schematics are easy to find. The only expensive component are the I/O transformers ($100- $175 for a good I/O x-former). So why don't recording engineers build their own gear? Many do, but most "recording engineers" have learned only how to twiddle knobs. I was shocked to find a chief engineer of a major record label thoroughly ignorant of how digital conversion worked (he had never studied The Calculus!). Alas, he had no maths background or proper university E.E. engineering training. A person can learn this on their own, but fe seem so inclined. You find this mostly in the USA. In England, for example, EMI will not hire an engineer without at least an undergraduate E.E. degree. Any engineer who hasn't this knowledge is simply a self deluded knob-twiddler. Some of them are good knob twiddlers, but when it comes to a simple repair onsite or designing a custom circuit, they are lost. It's not rocket science, but it IS SCIENCE. Do I sound angry? I am a musician, but I happen to have a thorough E.E. university background. I cannot tell you how many times I have had to solve a simple problem and p-off the so called "Engineer" on the job. All I care about is getting the job done...and it IS my dime. When a "professional" recording engineer, whom my people are paying, has no idea what reactance is, how digital conversion works, what is happening in phase mismatched circuits, impedance vs. current & voltage, etc., I find it a tad frustrating. Hey, I don't ask engineers to write songs or tune guitars; why should I need to explain Ohm's Law or why a balanced circuit requires three wires? -Never mind Maxwell's Equations! You cannot make this up.
Sounds good, but I wouldn't compare it to the original. I have a replica with almost all the original components and it still doesn't sound the same. In my case I used Mundorf and Aerovox capacitors. And the difference is in the transformers, there is nothing like the Triad's Interstage and Peerless
Nope. I own the 500 series version and you can dial in the perfect amount. I never understood the “pillow” sound till I got a chance to play with them myself
I like the warm and sweet sound ❤
beautiful sounding eq. love these demo videos!
☺️Thank you - plenty more on the way!
@@funkyjunkltd Great news! hopefully some more behind the scenes gear videos like those GML and 1176 ones too? learnt so much from them!!
Facinating how it sounds like Feedforward limiting a bit.
Hi! I was thinking just the same... seemed to me like it compress a bit
@@preciseaudioblog Yeah it 100% does. Very tight movement.
How do you use this Mono 1 Channel EQ on a Mix Bus as you did in this demonstration?
I'm wondering the same thing lol. Maybe bussed it to a mono bus?
This is a mono mix. Matched pairs are available for true stereo applications. Thanks!
The main component that pleases most people are the line transformers. I suspect most true Pultec units over both balanced and unbalanced inputs and outputs. Alas, if you are not near a strong EMF source, such as a broadcast xmitter, cell towers, high tension lines (multiple), etc, you might as well use the unbalanced lines -i.e., it won't matter as long as the Pultec output is NOT loaded by the receiving gear (digital or analogue recorders/converters, amps, other modification gear,etc).
Audio is NOT like RF transmission, where all connection and devices must have impedances that exactly match (resonance is key with RF systems).
With AF (audio) you only need to make sure your outputs are not being loaded by your inputs; -e.g. I use McIntosh Preamps ( heavily modified) with cathode followers that deliver 50,000 Ohms. E.g., My amplifiers are well over 100,000 Ohms (using EF 86 valves). In fact, a preamp output of 1 meg Ohm is a perfect load for the EF 86 circuit I designed. The EF 86's are so quiet that unloaded you can hear only a very slight and attenuated gaseous sound that vanishes the moment it is loaded by more than a few mega Ohms. There is no way 50K Ohms will be loaded by such a circuit, and there are no transformers.
Pultec uses great I/O, line, trannies and this is one of the best things about them. They make great DI circuits. However, the only thing better than a great I/O transformer is NO transformer.
No I/O transformer can be perfectly linear, but some x-formers have a pleasing curve for some instruments and/or music. Plutec used great trannies, but I have never heard a better I/O transformer than in the RCA gear (made by Western Electric) -broadcast or recording. RCA built much of their boards for use in either B-cast or recording. 'Tis gear, well worth rebuilding.
The downside of Pultec uits is they are WAAY overpriced. Dear lord, any E.e. with a fair bench and a chassis can design and build such a circuit; -the schematics are easy to find. The only expensive component are the I/O transformers ($100- $175 for a good I/O x-former).
So why don't recording engineers build their own gear? Many do, but most "recording engineers" have learned only how to twiddle knobs.
I was shocked to find a chief engineer of a major record label thoroughly ignorant of how digital conversion worked (he had never studied The Calculus!). Alas, he had no maths background or proper university E.E. engineering training. A person can learn this on their own, but fe seem so inclined. You find this mostly in the USA. In England, for example, EMI will not hire an engineer without at least an undergraduate E.E. degree. Any engineer who hasn't this knowledge is simply a self deluded knob-twiddler. Some of them are good knob twiddlers, but when it comes to a simple repair onsite or designing a custom circuit, they are lost.
It's not rocket science, but it IS SCIENCE.
Do I sound angry? I am a musician, but I happen to have a thorough E.E. university background. I cannot tell you how many times I have had to solve a simple problem and p-off the so called "Engineer" on the job. All I care about is getting the job done...and it IS my dime. When a "professional" recording engineer, whom my people are paying, has no idea what reactance is, how digital conversion works, what is happening in phase mismatched circuits, impedance vs. current & voltage, etc., I find it a tad frustrating.
Hey, I don't ask engineers to write songs or tune guitars; why should I need to explain Ohm's Law or why a balanced circuit requires three wires? -Never mind Maxwell's Equations!
You cannot make this up.
i wish i knew what this dude is talking about so fucking bad. back to listening to the subtle nuances of a pultec on an iphone.
Che meraviglia
Sounds good, but I wouldn't compare it to the original. I have a replica with almost all the original components and it still doesn't sound the same. In my case I used Mundorf and Aerovox capacitors. And the difference is in the transformers, there is nothing like the Triad's Interstage and Peerless
What do you mean you wouldn't compare it to the original???
@tri-unetrl3966 the original vintage version sounds different. It almost sounds stereo despite it being mono with a thicker and warmer texture
Are the knobs stepped?
Nope. I own the 500 series version and you can dial in the perfect amount. I never understood the “pillow” sound till I got a chance to play with them myself
How are you using one unit on a stereo mix?
This example was a mix folded down to mono. Matched pairs are available for true stereo applications. Thanks!
Nice song she is singing ❤
Notice how the low mids are tamed when engaged on everything.