Vinyl Asylum

Re: Another thought.

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HenryH

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In Reply to: Another thought. posted by jsm on July 21, 2006 at 10:34:10:

Maybe the OC9, but definitely NOT the DL-103, which has one of the flattest response curves I've yet seen. No HF hump there at all. In fact, the lower treble peaks are more normally associated with HO MCs, not LO MCs.

Henry
A 12-gauge shotgun is the ultimate arbiter of disputes - G. Gordon Liddy

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I was basing my statement on the graph reproduced below. - jsm 14:43:21 07/21/06 (2)
Henry:
I had seen John's plot of the Denon cartridge, which he reproduces again in his post below. It does show a quite noticeable rise in the high frequencies. If you don't agree, I hope you won't come after me with a shotgun to settle this!
Joe
- Re: I was basing my statement on the graph reproduced below. - HenryH 15:14:17 07/21/06 (0)
  I was going on the response graph Denon provides with every DL-103. Mine was absolutely flat out to 18K, then dropped off. The DL-103R, users say, has a more open extended top end. Possibly that's what John's graphs are showing.
  
  Henry
  A 12-gauge shotgun is the ultimate arbiter of disputes - G. Gordon Liddy
- Here are the graphs that came with my cartridges.... - John Elison 15:09:14 07/21/06 (0)
  The Audio Technica graph seems to correspond reasonably with my measurements.
  
  The Denon graph does not seem to correspond with my measurements.
Here are the frequency response graphs I measured on my cartridges.... - John Elison 12:50:29 07/21/06 (5)
- What are they loaded with? (nt) - Doug Flynn 01:04:22 07/22/06 (1)
  .
  - 100-ohms. (nt) - John Elison 05:17:42 07/22/06 (0)
- Re: Here are the frequency response graphs I measured on my cartridges.... - richardl 13:33:26 07/21/06 (2)
  Those both show very strong rising treble responses, not wild but quite strong. 3dB at 15k for AT OC9 and 4dB at 15K for DL-103. It is also a wide response. I would guess that those would be "hot" cartridges, not necessarily "bright" as in painful but, very detailed in their response.
  Where on your test record is the track that you used to test these cartridges? Is it on the inner or outer portion of the record?
  - Re: Here are the frequency response graphs I measured on my cartridges.... - John Elison 14:55:27 07/21/06 (1)
    These are spot frequencies that start with a 1-kHz reference and then continue with 20-kHz, 18-kHz, 16-kHz, etc., down to 20-Hz. The 20-kHz band begins around 126-mm groove radius and the 20-Hz band ends at about 88-mm groove radius.
    Neither of these cartridges sound overly bright to me, but I can't hear past 15-kHz. I've been using moving coils for the past 25-years and these two cartridge sound as well balanced across the musical spectrum as any others I've owned. I think it takes a 3-dB rise around 5 or 6-khz in order to achieve a bright sound. A 3 or 4-dB rise at 15-kHz is barely audible, especially to old men.
    Best regards,
    John Elison
    - Thanks, John - richardl 16:28:46 07/22/06 (0)
      That makes the cartridges a lot more interesting to me.

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