RSA MUSTANG P-51 . little amp BIG sound . image 1, 28, 30, 55, 59, 61 Reviews, 30, 34 . Post images . Monitors pg 1
Dec 5, 2009 at 10:23 PM Post #1,082 of 1,220

HeadphoneAddict

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Quote:

Originally Posted by froboy272 /img/forum/go_quote.gif
do you guys feel that the d5000's require an amp with 9v current to drive them best?

EDIT: I'v read through a ton of this thread and i cant find one... does anyone have a picture of a mustang with or compared to an ipod nano?



I think the P-51 has enough juice for the D5000, and almost but not quite enough for the HD600. The P-51 does seem to have slightly more power than my Predator, although I thought they were spec'd the same.

Now, if you were getting HD600/650 then the 9v SR-71a would be more important because high impedance phones need the voltage swing more than they need current.

web.jpg
 
Feb 26, 2010 at 6:49 PM Post #1,085 of 1,220

jamato8

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I would email RSA and ask the questions though I would imagine right now they are very busy with the release of the Protector.
 
Feb 26, 2010 at 7:57 PM Post #1,087 of 1,220

neco

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Quote:

Originally Posted by kayser /img/forum/go_quote.gif
I already emailed them and asked about technical specifications and about shipping cost. Well, they replied me, answering only my second question.


I've been looking for the specifications as well however from what I've read Ray Samuels doesn't have much of this information about his amps out in the public.
 
Feb 26, 2010 at 8:37 PM Post #1,089 of 1,220

tnmike1

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with his reputation, build quality and overall amp performance he doesn't need to release information about the guts of the amp. The same reason he paints over the identity of the opamps and other electronic guts.
 
Feb 26, 2010 at 8:39 PM Post #1,090 of 1,220

Ray Samuels

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Quote:

Originally Posted by kayser /img/forum/go_quote.gif
I already emailed them and asked about technical specifications and about shipping cost. Well, they replied me, answering only my second question.


P-51, Mustang, Specs.

50 K input impedance.
5 ohms-300 Ohms output impedance.
250ma per channel drive capability.
rail to rail input/output voltage swing.
Freq. response, 5hz-100K
No caps in the signal path.
72 hours of play back using IEMs from single charge.
3.7-4.2 volts Lithium ion powered
Charging time about 2 hours.
Dimensions...
1.5" width
2.25" length
.7" hight.
about 4-5 Oz weight.

RSA
 
Feb 26, 2010 at 9:00 PM Post #1,092 of 1,220

jamato8

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So there you go. :^)
 
Feb 28, 2010 at 5:05 AM Post #1,093 of 1,220

sluker

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Quote:

Originally Posted by HeadphoneAddict /img/forum/go_quote.gif
I think the P-51 has enough juice for the D5000, and almost but not quite enough for the HD600. The P-51 does seem to have slightly more power than my Predator, although I thought they were spec'd the same.

Now, if you were getting HD600/650 then the 9v SR-71a would be more important because high impedance phones need the voltage swing more than they need current.

web.jpg



Has anyone tried the P-51 with the 701's, how well will it drive them?
 
Mar 1, 2010 at 5:35 AM Post #1,094 of 1,220

neco

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Quote:

Originally Posted by Ray Samuels /img/forum/go_quote.gif
P-51, Mustang, Specs.

50 K input impedance.
5 ohms-300 Ohms output impedance.
250ma per channel drive capability.
rail to rail input/output voltage swing.
Freq. response, 5hz-100K
No caps in the signal path.
72 hours of play back using IEMs from single charge.
3.7-4.2 volts Lithium ion powered
Charging time about 2 hours.
Dimensions...
1.5" width
2.25" length
.7" hight.
about 4-5 Oz weight.

RSA



Would someone mind explaining some of these specs? Does this mean the amp can't run 600 ohm headphones since it has "5 ohms-300 Ohms output impedance". It is "3.7-4.2 volts Lithium ion powered" so this mean the SR-71A has more voltage swing potential since it has 18V?
 
Mar 21, 2010 at 3:15 AM Post #1,095 of 1,220

Randius

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I wish to ask if the Mustang gives significant improvement in SQ over the iBasso D10 with topkit? And does the Mustang have good synergy with the Ortofon e-Q7?
 

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