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SPL PHONITOR 2 NEW HEADPHONE AMP - Page 16

post #226 of 227
Quote:
Originally Posted by darkless View Post
 

 

The Phonitor 2 output power seemed plenty when I briefly tried mine with an HE-6 during a meet last October. The owner auditioned the combo for a while and seemed very pleased with what he heard. He told me afterwards that he was now considering getting a Phonitor 2 as replacement preamp for the vintage speaker amp normally used to power his HE-6.

 

As for specs, IMHO the newer Phonitor 2 still seems to be the better amp despite the minor differences in output power:

 

Phonitor 1

Crosstalk: -67 dB

THD: 0,005%

Noise A-weighted: -97 dB

Dynamic Range: 129,5 dB

Max input level: +24 dBu

Impedance: 9 Ohm

 

Max. Output Performance (taken from SPL home page):
1,7W (+32,2dBm) @ 1 kHz and 600 Ohms connection
360mW (+25,6dBm) @ 1 kHz and 30 Ohms connection

 

Phonitor 2

Crosstalk; -106 dB

THD&N: 0,00085% (0,00091% for headphone)

Noise A-weighted: -104,76 dB (-103,98 dB for headphone)

Dynamic Range: 134,37 dB (133,62 dB for headphone)

Max input level: +32,5 dBu

Impedance: 0,18 Ohm

 

Max. Output Power (taken from SPL home page):
2 x 1W (+30 dBu) @ 1 kHz and 600 Ω connected impedance
2 x 2W (+30 dBu) @ 1 kHz and 300 Ω connected impedance

 

I was referring more to comparing the two in regards to sound quality (do the 2 amp differ in sound). But the specs published on their website conflicts with what's published in the manual

Very confusing.

 

Power Amplifier (Listed in the Phonitor 2 Manual)
Max. Output Power:
65m W (+20 dBm) at 1 kHz and 600 Ohm connected impedance
560 mW (+20 dBm) at 1 kHz and 40 Ohm connected impedance

 

Max. Output Power (taken from SPL home page):
2 x 1W (+30 dBu) @ 1 kHz and 600 Ω connected impedance
2 x 2W (+30 dBu) @ 1 kHz and 300 Ω connected impedance

post #227 of 227

I emailed SPL about the Phonitor 2 maximum output power into various headphone loads and received a reply with the following data:

 

Phonitor 2 Max Output Power

2x 1W @  600 Ohm
2x 2W @  300 Ohm
2x 3,7W @ 120 Ohm (maximum)
2x 2,9W @  47 Ohm
2x 2,7W @  32 Ohm

 

The amp is not a beast by any means, but from a numbers perspective it certainly gets the job done. The Phonitor 2 is a very capable amp when it comes to delivering current into demanding low-impedance cans such as the HE-6, and it's completely overkill for my Audeze LCD-X and the Sennheiser HD 800. More numbers:

 

Hifiman HE-6: 118 dB peak SPL (83.5 dB SPL/mW, 3W into 50 Ohm)

 

Audeze LCD-X: 128 dB peak SPL (95 dB SPL/mW, 2W into 20 Ohm)

 

Sennheiser HD 800: 130 dB peak SPL (96.8 dB SPL/mW, 2W into 300 Ohm)

 

 

Disclaimer: Headphone sensitivity and impedance stats were taken from the audiobot9000 website.

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