toad
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Post by toad on Jan 18, 2011 10:30:10 GMT
Can anyone tell me where I can get hold of a metal can LM4562 and heatsink? I want to upgrade my Solo and I already love the standard LM4562 sound so moving to the metal can variant seems logical
Thanks in advance
Ian
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Post by Deleted on Jan 18, 2011 10:40:19 GMT
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toad
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Post by toad on Jan 19, 2011 11:17:27 GMT
Cheers Alex
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toad
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Post by toad on Jan 24, 2011 16:24:23 GMT
Just in case anyone is interested. The Metal can LME49720HA has upped the ante on the Solo considerably. Better extension of bass and tad more clarity at the top end. Mids seem to have benefited to a lesser degree but are still a little clearer than they were before.
The space between instruments and the overall presence of decent recordings has improved considerably. Way more than I was expecting tbh.
One of the cheapest upgrades I've ever done. I was surprised at just home much the metal can improves things.
I'd also like to thank Simon for the fast despatch of the chip.
Cheers
Ian
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Post by Deleted on Jan 24, 2011 18:05:14 GMT
Just in case anyone is interested. The Metal can LME49720HA has upped the ante on the Solo considerably. Better extension of bass and tad more clarity at the top end. Mids seem to have benefited to a lesser degree but are still a little clearer than they were before. The space between instruments and the overall presence of decent recordings has improved considerably. Way more than I was expecting tbh. One of the cheapest upgrades I've ever done. I was surprised at just home much the metal can improves things. I'd also like to thank Simon for the fast despatch of the chip. Cheers Ian Thats great Ian, really pleased your happy and can detect a positive SQ benefit. Is this the same op-amp that we have in our Zigis portable, if so, perhaps an upgrade to the metal version would be of benefit in this amp also!! Mick.
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Post by Deleted on Jan 24, 2011 21:20:01 GMT
Just in case anyone is interested. The Metal can LME49720HA has upped the ante on the Solo considerably. Better extension of bass and tad more clarity at the top end. Mids seem to have benefited to a lesser degree but are still a little clearer than they were before. The space between instruments and the overall presence of decent recordings has improved considerably. Way more than I was expecting tbh. One of the cheapest upgrades I've ever done. I was surprised at just home much the metal can improves things. I'd also like to thank Simon for the fast despatch of the chip. Cheers Ian Hi Ian Good to hear ! Simon is providing a great service, even more so for RG members where he goes that extra mile. For anybody else contemplating using the LM4562HA/LME49720HA , I would recommend trying the much cheaper plastic DIP8 version first, then if you like what it does, upgrade. These devices are very picky about their power supplies, so they will not give the same results in some implementations. Alex
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toad
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Post by toad on Jan 24, 2011 21:28:12 GMT
Yes Mick it's the same chip. I am considering getting another couple. One for one of my Zigis' and one for my Aune.
I've popped the lid on the Zigis and there seems to be plenty of headroom for the metal can.
Ian
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Post by Deleted on Jan 25, 2011 15:26:15 GMT
Yes Mick it's the same chip. I am considering getting another couple. One for one of my Zigis' and one for my Aune. I've popped the lid on the Zigis and there seems to be plenty of headroom for the metal can. Ian Ok Ian, if you do order some more, would you order one for me to, and ask him to bend the tags accordingly for the dip socket, i will of course send you the money, just let me know how much is required. Thank you. Mick.
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Post by Deleted on Jan 27, 2011 14:55:52 GMT
Yes Mick it's the same chip. I am considering getting another couple. One for one of my Zigis' and one for my Aune. I've popped the lid on the Zigis and there seems to be plenty of headroom for the metal can. Ian Received mine this morning Ian (super quick delivery) just fitted it in the Zigis, sounds great driving the PS1000`s, happy bunny. Mick.
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toad
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I am the Super Toad, the Original Toad, the Whole Toad and nothing BUT the toad.... don't forget it!
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Post by toad on Jan 27, 2011 15:01:56 GMT
That's good Mick. Mine other 2 should be on the doormat then As I mentioned to you via PM. Simon says they improve after a few tens of hours and they do indeed!. Everything just improves a smigeon. Clearer Mids and Highs. Even more bass extension and more space between the instruments. Best £11 I ever spent
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XTRProf
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Post by XTRProf on Feb 6, 2011 3:47:55 GMT
I have these lying around for too long. Must use them in my X-Dac V3 this CNY to compare. Just to confirm, without looking at the spec sheet, the tab is the V+ (dot of the LM4562) and all the 8 leads will be in the correct sequence in the order as arranged round the cyclindrical can when I have the tab put at the LM4562 dot of the dip8 socket, right?
Thanks all for any advice.
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Post by Deleted on Feb 6, 2011 3:59:17 GMT
Photo coutesy of RG member Simon (traf) from Bath in the U.K. who sells these at good prices on ebay. (LME49720HA = LM4562HA) Alex P.S. When used as a dual (NOT used as a dual in O/P stage of X-DAC v3) there will be a small further improvement noted if fitted with a suitable heatsink (TO5 etc.) Be aware that when using with dual rail supplies, that the case is connected to the -VE supply rail. Alex Attachments:
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XTRProf
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Pssst ! Got any spare capacitors ?
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Post by XTRProf on Feb 7, 2011 7:33:49 GMT
P.S. When used as a dual (NOT used as a dual in O/P stage of X-DAC v3) there will be a small further improvement noted if fitted with a suitable heatsink (TO5 etc.) Be aware that when using with dual rail supplies, that the case is connected to the -VE supply rail. Alex Ah, only had time to do up the heat sink part with heatsink compound and wipe clean. So yes, I have the heatsinks as can be seen from the pictures. Without heatsinks: With heatsinks and heatsink compound: With the can and thus heatsink connected to the -ve rail, I must make sure that heatsink does not touch any metal parts in the X-Dac V3. Alright noted with the LME49720HA in a dip socket picture, the can tab is the same reference as the dot on the LM 4562 case.
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Post by Deleted on Feb 12, 2011 11:08:35 GMT
Hi All I finally got round to ordering one of these from Simon on ebay for my SCHA. pulled the trigger Friday 4pm and the order arrived today (Sat) in the morning post. First Class service and super fast delivery well done Simon I'll report back on the SQ compared to the plastic fantastic one. take care
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mrarroyo
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Post by mrarroyo on Feb 13, 2011 21:00:55 GMT
Just in case anyone is interested. The Metal can LME49720HA has upped the ante on the Solo considerably. Better extension of bass and tad more clarity at the top end. Mids seem to have benefited to a lesser degree but are still a little clearer than they were before. The space between instruments and the overall presence of decent recordings has improved considerably. Way more than I was expecting tbh. One of the cheapest upgrades I've ever done. I was surprised at just home much the metal can improves things. I'd also like to thank Simon for the fast despatch of the chip. Cheers Ian Hi Ian, I have the Solo SRGII with the NE5532 chip. Based on the specs the LM4562 should work, do you agree? Thanks.
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XTRProf
Fully Modded
Pssst ! Got any spare capacitors ?
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Post by XTRProf on Feb 14, 2011 8:23:55 GMT
Just in case anyone is interested. The Metal can LME49720HA has upped the ante on the Solo considerably. Better extension of bass and tad more clarity at the top end. Mids seem to have benefited to a lesser degree but are still a little clearer than they were before. The space between instruments and the overall presence of decent recordings has improved considerably. Way more than I was expecting tbh. One of the cheapest upgrades I've ever done. I was surprised at just home much the metal can improves things. I'd also like to thank Simon for the fast despatch of the chip. Cheers Ian Hi Ian, I have the Solo SRGII with the NE5532 chip. Based on the specs the LM4562 should work, do you agree? Thanks. Actually depends on what voltage the circuit is running. The max supply voltage for LM4562 is +/-17VDC whereas the NE5532 is +/-22VDC.
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Post by Deleted on Feb 14, 2011 9:46:51 GMT
For higher Vs you can use the LME49860 part.
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toad
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I am the Super Toad, the Original Toad, the Whole Toad and nothing BUT the toad.... don't forget it!
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Post by toad on Feb 14, 2011 10:26:27 GMT
Hi Ian, I have the Solo SRGII with the NE5532 chip. Based on the specs the LM4562 should work, do you agree? Thanks. Hi Miguel, I'm no expert but if Alex says the voltage limit on the default chip is higher it might be worth asking on Graham's forum what the supply voltage on the SRGII is. If it's too high you could get the LME49860 that Javier recommends. Ian
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Post by Deleted on Feb 14, 2011 10:45:01 GMT
Hi Ian, I have the Solo SRGII with the NE5532 chip. Based on the specs the LM4562 should work, do you agree? Thanks. Hi Miguel, I'm no expert but if Alex says the voltage limit on the default chip is higher it might be worth asking on Graham's forum what the supply voltage on the SRGII is. If it's too high you could get the LME49860 that Javier recommends. Ian Ian It seems highly unlikely that the SRG11 supply voltage is higher than +-15V. The higher voltage device mentioned isn't available in a metal can version either. Do you know the voltage of the supplied wallwart ? Alex
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toad
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I am the Super Toad, the Original Toad, the Whole Toad and nothing BUT the toad.... don't forget it!
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Post by toad on Feb 14, 2011 10:55:56 GMT
Not off hand Alex and my Solo is out on loan at the moment.
Ian
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toad
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I am the Super Toad, the Original Toad, the Whole Toad and nothing BUT the toad.... don't forget it!
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Post by toad on Feb 14, 2011 10:59:46 GMT
Hi All I finally got round to ordering one of these from Simon on ebay for my SCHA. pulled the trigger Friday 4pm and the order arrived today (Sat) in the morning post. First Class service and super fast delivery well done Simon I'll report back on the SQ compared to the plastic fantastic one. take care I'm looking forward to your impressions Shaun
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Post by Deleted on Feb 14, 2011 11:06:53 GMT
Ian and Miguel The LME49720HA will be fine. Alex
Specification
Headphone impedance 16 to 600 Ohms (8 to 2,000 Ohms acceptable)
Power output 32 Ohms: 27mW/channel; 600 Ohms: 23mW/Channel
Distortion (THD plus noise, ref 1kHz): 0.02%
Frequency response (-3dB) 32 Ohms load: 27Hz – 35kHz; 600 Ohms load: 10Hz – 39kHz
Output noise (20Hz-20kHz, CCIR quasi-peak) -84dB
Input sensitivity 32 hms 250mV rms; 600 Ohms 775mV.
Channel balance better than 1dB, “9 to 3 o’clock” positions
Crosstalk Left to Right -57dB; Input to Input -68dB
Mute Signal off mute, non-shorting
Output Stage Bipolar class AB
Supply Voltage 24V DC
Size (approx.) 107 (W) 185 (D) x 50 (H) inc feet
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mrarroyo
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Post by mrarroyo on Feb 14, 2011 11:46:26 GMT
Yes the PSU1 is 24VDC. Will look into getting the metal LME49720HA from Ian.
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mrarroyo
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Post by mrarroyo on Feb 14, 2011 11:54:51 GMT
Ok, I ordered a pair (two amps). Now to look for the round heat sinks and to place an order from Mike on the caps and russian tubes.
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Post by Deleted on Feb 14, 2011 18:00:44 GMT
Hi All I finally got round to ordering one of these from Simon on ebay for my SCHA. pulled the trigger Friday 4pm and the order arrived today (Sat) in the morning post. First Class service and super fast delivery well done Simon I'll report back on the SQ compared to the plastic fantastic one. take care I'm looking forward to your impressions Shaun Hi Toad popped the FMJ IC into my SCHA today and had a quick listen. yes it's a big step forward from the plastic fantastic one . clearer and more focused with better top and bottom extension. the most obvious thing noticed was that the bass had filled out, got deeeeper and was much more in balance with the rest of the sound. TBH i was not expecting much of an improvement (same chip different body) but i was quite gob-smacked with the level of improvement. money very well spent and great service from Simon. thanks Toad for reminding me that i still had unfinished business with the SCHA which now sounds fantastic. it's my second favorite HA Take care
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