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#261988 - 2017-03-23 17:47 Re: New tweeters **** [Re: J in Ibiza]
Registered: 2007-09-23
Posts: 1,556
Syles Offline
Working on the ultimate question
Syles Offline
Working on the ultimate question

Registered: 2007-09-23
Posts: 1,556
Loc: London, UK
4 to 6 ohms wouldn't result in no sound; a little lower dB due to the higher impedance, but there would still be sound.

I think your 'new' tweeters are broken.

All the best,

Steve


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#262035 - 2017-03-23 23:45 Re: New tweeters [Re: Syles]
Registered: 2004-04-20
Posts: 433
Jdb-si Offline
Paranoid android
Jdb-si Offline
Paranoid android

Registered: 2004-04-20
Posts: 433
Loc: New Jersey, USA
Can confirm using the Excel Milleniums worked perfectly. Probably broken tweeter as Steve suggests.


Theater: G68, G98DH, DSP6k, DSP55kC, SW1600x2, DSP55k, Plasma, (Zone 2)
Living room: DSP5k, DSP52kC, SW1600, G68, Sooloos MC600 (Zone 1)
Bedroom: M80
office: SACD, 861v4, DSP6k (Zone 3)
Storage: P350Ws, G55s, M33s, DSP33s, DSP5k, 501, 518, 561
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#262049 - 2017-03-24 07:11 Re: New tweeters [Re: Syles]
Registered: 2008-02-04
Posts: 3
J in Ibiza Offline
Harmless
J in Ibiza Offline
Harmless

Registered: 2008-02-04
Posts: 3
Loc: Valencia, Spain
Steve, thanks for the input. Do you think its possible the problem could be that I tried powering up the system with 1 new and 1 old tweeter and this confused the electronics?

BTW, it wasn't just no sound from the tweeter - there was no sound from any of the drivers on the speaker with the new tweeter, but the other speaker was OK.

John

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#262051 - 2017-03-24 07:35 Re: New tweeters [Re: J in Ibiza]
Registered: 2007-09-23
Posts: 1,556
Syles Offline
Working on the ultimate question
Syles Offline
Working on the ultimate question

Registered: 2007-09-23
Posts: 1,556
Loc: London, UK
The symptoms you describe make me think that either the new tweeter is short circuit, or that you shorted something when connecting it.

This may have caused the loudspeaker to go into a safe mode and shut the amplifiers down to prevent damage.

Have you any way of testing the tweeters; a simple multimeter could confirm a short or open circuit

All the best,

Steve


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#262066 - 2017-03-24 11:51 Re: New tweeters [Re: Syles]
Registered: 2008-02-04
Posts: 3
J in Ibiza Offline
Harmless
J in Ibiza Offline
Harmless

Registered: 2008-02-04
Posts: 3
Loc: Valencia, Spain
Thanks Steve.

OK, this is what I did. Tested the tweeters - no short.

I decided to install both tweeters, and hey presto - they're working perfectly. I think you were right, that I must have shorted something the first time. Anyway, I'm very happy now everything's working. I should have changed the tweeters years ago - they are 25 years old, and now the speakers sound better than I can ever remember.

So for anyone thinking about replacing their tweeters - just do it, its really worth it. Its like having a new set of speakers again.

I used SEAS H519 25TFFC NEW 2015 Manufacture and no mods were necessary - they dropped straight in, albeit, because the flanges are not as deep, they are recessed a millimetre or two.

Best regards,

John

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#271516 - 2018-01-07 18:36 Re: New tweeters [Re: J in Ibiza]
Registered: 2016-10-31
Posts: 102
Nstzya Offline
Hitchhiker
Nstzya Offline
Hitchhiker

Registered: 2016-10-31
Posts: 102
Loc: Indianapolis, USA
At the risk of inciting a huge groan of protest about dredging this thread out of the dust bin ... again! ... my apologies.

Having read through all 7 pages, I am no closer to understanding what a current true drop in replacement is for the original 18 bit DSP5000 Silver voice coil/Silver dome tweeter? I have seen SEAS H539, H519, a black dome (not sure which model), etc...

Although I built a Hafler power amp kit back in college, I was a naive kid back then and kinda oblivious... Wizened by experiences since, I am already intimidated by the notion of what sounds like needing to solder in any replacement and overheating and melting a voice-coil in the process. I am definitely not interested in lathing off flange thickness, or routing, filing, or otherwise modifying the cabinet. I’d like a true drop in replacement. And if that is the OEM, where to get two in the USA since that seems to be an issue as well... Not sure that I saw that any of the “improvement” options was a drop-in, but if there is... Personally, I don’t care if something is a millimeter or two proud or shallow either.

I imagine those following me here into this wormhole would like such a definitive summary of the state of tweeter update/replacement/rejuvenation for legacy DSP speakers as of early 2018... so if one of the sage wise men would indulge us with a bit of their wisdom/time?

Thanks
-Scott

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#271527 - 2018-01-08 04:37 Re: New tweeters [Re: Nstzya]
Registered: 2009-11-10
Posts: 1,271
CMB Integrations - Bruce Offline
Meridian Partner Working on the ultimate question
CMB Integrations - Bruce Offline
Meridian Partner
Working on the ultimate question

Registered: 2009-11-10
Posts: 1,271
Loc: Lexington, South Carolina, USA
I keep them in stock. They are very easy to change out


www.cmbintegrations.com

Personal System #1 Theta Digital Cassablanca 4, 218, DSP8000.2SE, DSP7200SEHC, Revel F228be, Revel B112, Monitor Audio Silver 10, ATI 200WX5 Amp, JVC RS15, Shunyata Denali 600S, Black Diamond Zero Edge screen. QNAP TS-251 3TB
Mark Levinson No515 Turntable

Crestron control and multi room audio via Meridian 258 amplifiers.
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#272871 - 2018-02-08 17:20 Re: New tweeters [Re: CMB Integrations - Bruce]
Registered: 2016-10-31
Posts: 102
Nstzya Offline
Hitchhiker
Nstzya Offline
Hitchhiker

Registered: 2016-10-31
Posts: 102
Loc: Indianapolis, USA
Originally Posted By CMB Integrations - Bruce
25 TAFC/GW-BS1 H 1054-6ohm. Exact match for originals.
To clarify for modern day readers, are you talking about these? And are they still manufactured? Looks like these might need to be on the every 10 year service plan... at least until the rest of the kit wears out...


Bottom: DSP5000/18, 500.2, Bluesound Node 2 (MQA)
On Top: (of DSP5000/18) KEF LS50Wireless, Velodyne Optimum 8
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#272872 - 2018-02-08 17:24 Re: New tweeters [Re: Nstzya]
Registered: 2009-11-10
Posts: 1,271
CMB Integrations - Bruce Offline
Meridian Partner Working on the ultimate question
CMB Integrations - Bruce Offline
Meridian Partner
Working on the ultimate question

Registered: 2009-11-10
Posts: 1,271
Loc: Lexington, South Carolina, USA
Yes. If you like I can tell when the ones I have in stock were made.


www.cmbintegrations.com

Personal System #1 Theta Digital Cassablanca 4, 218, DSP8000.2SE, DSP7200SEHC, Revel F228be, Revel B112, Monitor Audio Silver 10, ATI 200WX5 Amp, JVC RS15, Shunyata Denali 600S, Black Diamond Zero Edge screen. QNAP TS-251 3TB
Mark Levinson No515 Turntable

Crestron control and multi room audio via Meridian 258 amplifiers.
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#272923 - 2018-02-09 22:24 Re: New tweeters [Re: CMB Integrations - Bruce]
Registered: 2016-10-31
Posts: 102
Nstzya Offline
Hitchhiker
Nstzya Offline
Hitchhiker

Registered: 2016-10-31
Posts: 102
Loc: Indianapolis, USA
Bruce, for everyone’s FYI, are they still making them? Can you get more down the road?

Thanks


Bottom: DSP5000/18, 500.2, Bluesound Node 2 (MQA)
On Top: (of DSP5000/18) KEF LS50Wireless, Velodyne Optimum 8
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#272924 - 2018-02-09 22:39 Re: New tweeters [Re: Nstzya]
Registered: 2009-11-10
Posts: 1,271
CMB Integrations - Bruce Offline
Meridian Partner Working on the ultimate question
CMB Integrations - Bruce Offline
Meridian Partner
Working on the ultimate question

Registered: 2009-11-10
Posts: 1,271
Loc: Lexington, South Carolina, USA
The last bunch I got in were made in 2015. I cannot say for sure if they are still being manufactured or not.


www.cmbintegrations.com

Personal System #1 Theta Digital Cassablanca 4, 218, DSP8000.2SE, DSP7200SEHC, Revel F228be, Revel B112, Monitor Audio Silver 10, ATI 200WX5 Amp, JVC RS15, Shunyata Denali 600S, Black Diamond Zero Edge screen. QNAP TS-251 3TB
Mark Levinson No515 Turntable

Crestron control and multi room audio via Meridian 258 amplifiers.
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#273213 - 2018-02-15 13:37 Re: New tweeters [Re: MacGuy]
Registered: 2016-10-31
Posts: 102
Nstzya Offline
Hitchhiker
Nstzya Offline
Hitchhiker

Registered: 2016-10-31
Posts: 102
Loc: Indianapolis, USA
Originally Posted By MacGuy
I wonder how the audio would have sounded in Apple products if Steve Jobs had been a Meridian fan? cool
Might be sacrilege to discuss here, but I recently trialed a set of Devialet Phantom Golds. I think that is how. And their current path to catch up would be to acquire them, but when I suggested that (tongue in cheek) on their forum, it was met with quite lucid arguments about how Apple has become dumbed down consumer grade mass market, rather than the cutting edge innovator Jobs was to digital music. Apple is obviously doing quite well at what they’re doing, but I think they have fallen woefully behind in audio. They’ve shown their arse with Beats acquisition, so I would expect Bose rather than Devialet. Their HomePod is certainly a Bose knock off.


Bottom: DSP5000/18, 500.2, Bluesound Node 2 (MQA)
On Top: (of DSP5000/18) KEF LS50Wireless, Velodyne Optimum 8
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