Pass INT-60 Review

As a Pass dealer, my two cents: the INT-250 would be a better match.


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Mike said:
As a Pass dealer, my two cents: the INT-250 would be a better match.


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Click to expand...

Hi Mike,

thank you for the suggestion, it made me rethinking.. the extra power sure is tempting (but not the extra 3k )...

the Int-60 leaves class A at 30W whereas the int-250 leaves at 15w. sonically what's the key differences?

so hard to find more inputs (from users) or even review on the int-250, wonder why...

Cheers
 
pingpong said:
Hi Mike,

thank you for the suggestion, it made me rethinking.. the extra power sure is tempting (but not the extra 3k )...

the Int-60 leaves class A at 30W whereas the int-250 leaves at 15w. sonically what's the key differences?

so hard to find more inputs (from users) or even review on the int-250, wonder why...

Cheers
Click to expand...

They are VERY close sonically. The 60 has a little more class A goodness, but the 250 is effortless. If I had to pick one, the 250 would be it.
 
I have a medium sized room with 90+ dB efficient speakers, and I woudn't want any less power than the INT-60. For less efficient speakers and/or a bigger room I would definitely go with the 250; as it is it was a close call for me and I might still end up with the 250.
 
Mike said:
As a Pass dealer, my two cents: the INT-250 would be a better match.


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Click to expand...

Mike said:
They are VERY close sonically. The 60 has a little more class A goodness, but the 250 is effortless. If I had to pick one, the 250 would be it.
Click to expand...

rbbert said:
I have a medium sized room with 90+ dB efficient speakers, and I woudn't want any less power than the INT-60. For less efficient speakers and/or a bigger room I would definitely go with the 250; as it is it was a close call for me and I might still end up with the 250.
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Mike / Rob,

Thank you very much for the inputs........ i'm leaning towards the int-250 now

:exciting:
 
pingpong said:
Mike / Rob,

Thank you very much for the inputs........ i'm leaning towards the int-250 now

:exciting:
Click to expand...

If you do end up buying the INT-250, please post your impressions on this forum. Not many reviews of it out there.

Thanks in advance.
 
kkfan said:
If you do end up buying the INT-250, please post your impressions on this forum. Not many reviews of it out there.

Thanks in advance.
Click to expand...

sure... but not anytime soon... still not comfortable buying blind......
 
hello, I finally bought the pass int-60 for my W.Sophia 2.:)
I have had mcintosh. mc452 with c2300, they needed for break aprox 120hs.

but i am not familiar with Pass.

Generally Pass how many hs. need for break ?
(int-60 is basically pre xp10 with amp 30.8)

best regards
 
Welcome to the forum mati! Thank you for joining.

For best break in with Pass, leave the amp on 24x7 for the first week. The following week should be on and playing for 12 hours and unplugged for 12 hours. After that, enjoy as usual. I am sure you will continue to hear some improvements for the next week. Pass makes great stuff. Enjoy.
 
Last edited:
mati1979 said:
hello, I finally bought the pass int-60 for my W.Sophia 2.:)
I have had mcintosh. mc452 with c2300, they needed for break aprox 120hs.

but i am not familiar with Pass.

Generally Pass how many hs. need for break ?
(int-60 is basically pre xp10 with amp 30.8)

best regards
Click to expand...
Mike can probably chime in with more info, but the INT-60's amp section is NOT the same as the XA-30.8
 
INT-60 High Bias 60W Integrated Amplifier
The INT-250 and INT-60 are not literally identical to their stand-alone counterparts the X-250.8 and XA-60.8; in particular the INT-60 is a stereo amplifier using the hardware of a single channel XA-60.8, and it necessarily has lower bias current in the output stage and does not operate Class A to 60 watts, rather somewhat less than half that.

Nevertheless, the essential details that deliver the sound of the .8 series have been tweaked in subjective testing, and the result is very close. There are a couple new wrinkles to the “preamp” portions of these two products. The volume control circuit outputs are buffered by 6 dB gain stages whose input JFETs present many megohms of load, getting attenuator distortions down below the .001% line. The extra gain allows optimal figures for the power amp stages, and offers improvement over the previous “passive” circuits.

The output noise figures of the integrated amplifiers are a little higher than the stand alone amplifiers, but after you figure in the noise of a separate preamp external to the amplifier, it comes out about the same, so I don't think you lose out on noise performance.

Did I mention that we included the meter on these? Yes, we have the meter just like the other Point 8 amps.

Finally, credit goes to Wayne Colburn, usually our preamp designer, for the work integrating new preamp circuits into these amplifiers.

Wayne and I and the rest of the people at Pass Labs sincerely hope these products enrich your listening experience for many years.

Thank you.

Nelson Pass


INT-60 / Specifications
Gain (db)
29 / 35
Power Output /ch (8 ohm)
60
Power Output /ch (4 ohm)
120
Input Impedance,(Kohms)
45
Power Consumption (W)
375
Number of Chassis
1
Volume Control
63
Inputs
4
Dimensions (W x H x D)
19 x 7.5 x 21.3
Remote
Yes
Ship Weight (LBS)
110
 
joeinid said:
Welcome to the forum mati! Thank you for joining.

For best break in with Pass, leave the amp on 24x7 for the first week. The following week should be on and playing for 12 hours and unplugged for 12 hours. After that, enjoy as usual. I am sure you will continue to hear some improvements for the next week. Pass makes great stuff. Enjoy.
Click to expand...

Is that what Pass recommends or what you recommend? I've been to 3 county fairs and 2 goat breedings and I have never heard of running a piece of gear for 12 hours and then unplugging it for 12 hours.
 
Mark - this break in procedure is actually directly from Pass Labs.


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