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November 10, 2019, 06:08 PM #1
Pass Labs Int-60 gain setting jumper
Hi
According to Stereophile review of the Pass INT-60, there should be a jumper setting to increase gain from 29dB to 35dB. Can anybody point out where this jumper is located on the PCB? Is there any negative effect to the sound quality if gain were set to 35 dB instead of the default 29dB ?
thanks
Harry
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November 11, 2019, 02:37 PM #2
Re: Pass Labs Int-60 gain setting jumper
Interesting question. I own one and have never heard of the feature.
What’s the benefit, should it play louder at the 35 db setting?
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November 11, 2019, 08:27 PM #3
Re: Pass Labs Int-60 gain setting jumper
Pass Labs is very responsive to questions of this nature. I suspect this modification lowers the input sensitivity required to produce full output, but that's only a guess.
Rob
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November 11, 2019, 08:33 PM #4
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Re: Pass Labs Int-60 gain setting jumper
If you want the most correct/complete answer, call Pass Labs customer support (Kent English).
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November 11, 2019, 08:34 PM #5
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Re: Pass Labs Int-60 gain setting jumper
If you raise the gain on the INT-60 you will decrease the volume control travel on sources with higher than normal output level especially if using the Balanced inputs.
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November 13, 2019, 08:29 PM #6
Re: Pass Labs Int-60 gain setting jumper
The mono blocks has the same jumper for the same reason. I once had it set to the higher gain to achieve a higher volume play back at the same volume setting. Now I have it back. The higher gain setting can also increase noise.
George
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November 13, 2019, 08:46 PM #7
Re: Pass Labs Int-60 gain setting jumper
Thanks everyone for chipping in.
Kent English told me there are 2 jumpers per channel need to be placed in such away that each jumper bridges two header pins. However he also mentioned this (quote): the INT-60 is generally best with the volume control advanced to a rather high step.. Upping the gain and then turning the volume control down may not bring any sonic gains to the table.
Harry
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November 13, 2019, 09:10 PM #8
Re: Pass Labs Int-60 gain setting jumper
You never posted why you wanted more gain. Low volume sources?
Rob
__________________________
Tascam BR-20; Technics 1506 with tape path upgrades, FM head, DeHavilland 222 tape head pre; Modwright Oppo 205 full tube mod w/LPS; Euphony Summus server, EtherRegen, HDPLEX LPS; MSB Discrete DAC (dual PS, ISLPro, balanced out); Pass Labs XP-12, XA60.8 (pair); Daedalus Audio Apollo 11’s, VMPS Larger Sub; Daedalus/Wywires, Acoustic Zen, Sablon Audio, Wireworld, Shunyata Research cables; Core Power Equi=Power;
Adona rack, Stillpoints, IsoPods, ASC, GIK Acoustics accessories
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November 13, 2019, 10:25 PM #9
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The AudioShark forum was created for sharing the passion of high-end Audio. We have Audiophiles from all over the world participating and sharing their knowledge. From novice to experts, you will find a friendly environment for discussing about High End Audio, Stereo System, Home Theater System, Home Stereo System, Home Theater Installation, Amplifiers, Speakers, Subwoofers, Integrated System, Acoustic treatments & Digital Room Corrections and many more.
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