• TalkBass has been independent since 1998. Add your voice.
    Create a free account to reply to discussions, view embedded media, and browse with fewer display ads.
    Join freeLog in
    Want zero display ads or expanded classifieds tools? Compare plans.

Double Bass New! Pirastro Perpetual Double Bass strings

How compared the tension/stiffness of Perpetuals to Spiros light or Jazzers?
I have no quantitative figure, but when I switched from spiro light to perpetuals I did not feel any significant change in tension (resistance to longitudinal force).

Concerning stiffness (resistance to bending they are very different: Spiro light are very stiff, whereas perpetuals are very simple. This is something that really striking when you manipulate them unmounted. Once they are mounted on the bass, you don't notice that much, because the strings under tension hardly deviate from a straight line.
 
Last edited:
  • Like
Reactions: Barcza
How compared the tension/stiffness of Perpetuals to Spiros light or Jazzers?

I have a good amount of experience with both. Subjectively, they're a little more supple than Jazzers. The low strings feel similar, but the D and G have more bounce than Jazzers to me. Not floppy, but supple. To me, they feel better matched across the set than Jazzers. I love Jazzers and have 6 or 8 years of experience with them. Perpetuals feel better to me. They don't sound exactly the same. Again, the D and especially the G sound better (Perps) to my ears, but that's subjective. Jazzers E and A strings have a really good sonic quality, maybe better than Perps pizz (but not arco), but the Perps E and A are a better sonic match to their D and G string, so I think it's a good tradeoff.

(Again subjectively) Spirocore Weich never felt quite right to me. Tension might be similar, but I felt like it was easy to overplay and get tangled up in them, which doesn't happen for me with either Jazzers or Perpetuals. I recall Weichs feeling thinner under the fingers as well.
 
I don't have any experience with the Jazzers but on my bass the Perpetuals feel like they're in between Spirocore Weichs and Mittels (S42) though they lean a little closer to the Weichs. In my opinion, the Perpetuals are much better for arco than any Spirocore variant I've ever tried. That being said, I'm not sure you're going to see a lot of orchestral players using them any time soon.

Mine have been on my bass for about 9 months and they still sound good, but have definitely lost some acoustic volume which is similar to my experience with Spirocores and Helicore Hybrids. I still haven't decided what I'm going to do when it comes time to change them. I hear both Spirocore Mittels and Evah Pirazzis calling my name...
 
  • Like
Reactions: Barcza
Remarkably lively for year-old strings - doesn’t sound like they’ve lost much tone or volume. One thought - if you lower the bridge will these get buzzy? Thank you for the comparison.

no they won't. at least not more than a spiro. my typical setup is usually 6mm on the G and thats the height in the 4 day old video. in the new video the G is at around 8 or 9 so....high lol.
 
This was the case also on my bass. But soundwise I liked Perps better. The A string sounded a bit too weak so I replaced it with Spiro weich 4/4 which had more power and punch on my bass.

Ah, yes seems pretty light...Maybe too light? Don’t tends to a slap string? I really don’t like stiff strings, but nether like the “slap string” kind of floppy strings too...Do you know how compared to nylon core strings like Obligato or Pirazzi Weich?
 
Ah, yes seems pretty light...Maybe too light? Don’t tends to a slap string? I really don’t like stiff strings, but nether like the “slap string” kind of floppy strings too...Do you know how compared to nylon core strings like Obligato or Pirazzi Weich?

Not as noodley has obligatos. Around the tension of Evah weich maybe a little lighter
 

Latest posts