Overview
The point of this comparison is to find out how the two cartridges sound against each other, playing the same pieces of music. This will hopefully show where each of my cartridges is better than the other, for a particular type of music. Is the Grado great for orchestra? Does the Pickering excel at hard rock? Who knows? Let’s find out.
I’ll be recording the playback of various records (LP and 45) of music that is familiar to me, so I won’t be distracted by things I’m not familiar with. This will also (hopefully) let me pick out differences easier (was the violin clearer here? Where did those backing strings come from??).
This will likely be a bit of an ongoing series as I sample different tracks over time. I’ll update this post with new evaluations as I publish them.
Turntable
I used my vintage Akai AP-Q41. It works, though needed a bit of work with the tone-arm lifter as it wasn’t clearing the records when auto-returning. And it’s leaking a slightly annoying 60hz hum. More on that later.
It’s an ’80 style turntable, quartz locked, auto-start/return, but doesn’t include modern tonearm adjustments (VTF) just the headshell mounting screws (for overhang and alignment), tonearm tracking force weight, and anti-skating (tracking offset) adjustment.
Cartridges:
- Grado Prestiege Green 3 (new)
- Pickering XV-15/625E (vintage — used)
- stylus: 4606-DEX — Diamond 0.25 x 0.7 mil nude elliptical tip (new)
The Pickering Brush
The XV-15/625E comes with a very attractive and functional pivoting dust brush mounted to the stylus holder. It adds about .5g to the cart weight, which must be accounted for in balance and tracking adjustment.
Unfortunately it also seemed to detract from tracking precision, as I discovered when playing the Era IV obstacle course LP while setting up and testing the cart.
Once the brush was removed and the tonearm re-balanced, the improvement was dramatic. All testing is conducted with the brush removed — too bad, as I really like the look.
The Grado Hum (or is it the turntable? both??)
It’s a pretty well-established position that Grado carts are vulnerable to a 60 cycle hum (or 50 if that’s your power grid) when paired with some turntables. The Pickering also picks up a little, but not to the extent of the Grado. So hum is a component in this testing, sadly. You’ll know it when you hear it.
The hum is quite noticeable on quiet passages of Princess Leia’s Theme, for example. Obviously it would be masked by more energitic music.
Method:
- Cartridges are mounted in their own headshell which is swapped to the tonearm as each track was played generating a Pickering track and a Grado track.
- Cartridges were hand aligned using a tuned Arc Protractor as a starting point. Then subjective listening and adjusting was done to achieve my prefered mounting positions.
- Tonearm re-balanced at each cartridge swap.
- Record and stylus cleaned before each playback.
Digitizing (the needle drop)
Signal from the turntable went through my Teac BX-300b (for preamp purposes only), out the REC 1 RCA connectors (tape) to a Focusrite Scarlett 2i2 DAC, to the computer. Recorded in Audacity (24bit WAV) and saved out as FLAC without processing. Video spectrogram was captured in post production playback through Audacity.
Initial Testing and Setup
I used the ERA IV Obstacle Course disc to help me get the carts and signal path set up. This pretty much involved listening to side A, band 2–5 repeatedly and tweaking the cart mount points and tracking until I got the best results. Especially on bands 4 and 5, the harp test.
Basically, the test will punish lesser carts and reward the best. The Pickering and Grado I have are in the middle somewhere so hearing tracking issues is to be expected. I’m looking to just minimize those as much as possible, as the tests are extreme examples and not likely encountered in everyday listening.
Bolded results are the best results, in my humble opinion 😃
Setup Era IV An Obstacle Course
Harp tracking distortion (A4, A5)
Cartridge (Tracking Range) | Tested Tracking Weight | Observation |
---|---|---|
Grado Prestiege Green(1.6g — 1.9g) | 1.75g | Some distortion on (4) |
1.75g | Very noticable distortion (buzz) on (5) | |
1.9g | Faint distortion on (4) | |
1.9g | Faint distortion on (5) | |
2.25g | Faint distortion on (5) | |
Pickering XV-15 (.75g — 1.25g) | 1g | Some distortion on (4) |
1g | Some distortion on (5) | |
1.25g | Minimal distortion on (4) | |
1.25g | Minimal distortion on (5) |
Notes: I tested the Grado a bit more than the Pickering, as I wasn’t satisfied with what I was hearing and decided to go for extremes. Even though the 2.25g weight on the Grado was good, it wasn’t really better than the 1.9g (that I could tell). The higher weight may work well for some things, but that really is outside the range of the cart normally, and could damage it and the records.
The Pickering was quite sensitive, and listening to it was less work than the Grado, it seemed.
Subjective Listening
And here we go. This is the first track I wanted to check. My LP is an original I picked up some time in 1978. It’s showing it’s age and you’ll notice a bit of crackle and popping in all the quiet bits.
First up is the Grado followed by the Pickering. Give it a couple of listens and feel free to let me know if you’re hearing what I am, or not.
Princess Leia’s Theme — Star Wars — 1977 release
A very familiar and enjoyable track. I selected it as it starts out delicate and quiet, building to involve the whole orchestra.
My copy is noisy and in need of a deep cleaning. I was listening for tone and clarity. How sharp are the solo strings and winds? How muddy are the full orchestra sections as it swells towards crescendo?
Cartridge | Tested Tracking Weight | Observation |
---|---|---|
Grado | 1.9g | 60hz hum off the top and through the opening wind instruments. Maybe a bit of groove noise/rumble. Harp nicely positioned, and good soundstage representation — various instruments noticably at different locations. Hum reappars toward the end. |
Pickering XV-15 (No Brush) | 1.25g | No hum. Slight groove noise. Initial wind is strong and clear! Crisp! Nice gentle violins with the horn. Wow, much nicer presence for clarinet. More top end sensitive. A bit of flute sibilance. Much more definition of various instruments as the crecendo approaches. |
Well, that was interesting. I gave the Grado a re-listen after I finished the Pickering, and yep, noticable differences.
I found the Grado sounded warm and buttery, rounding off some of the edges on the wind and high strings. In fact on the opening, you don’t really detect the strings except as a faint background. They were much more prominent on the Pickering.
The Pickering seemed brighter and much more sensitive to the whole top end. I could detect a bit more groove noise, pops and clicks seemed sharper, and the instruments all had a very nice sharp clarity up high. The crecendo was great as each instrument group had it’s own place on the soundstage.
For this piece of music, I’m going to give it to the Pickering. Clean and clear, delicate, just the way this music should be heard.
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