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Post by clau77 on Feb 9, 2022 1:58:47 GMT -5
Hi guys, is there a way to increase gain in this preamp? I have it coupled to a basx a300 and I need to get it to around 40 on the screen to get some decent sound levels. Mind you, I use dcm time windows 1a which are notoriously power hungry, but I believe the a300 150 watts on 8 ohm should have been enough???
Thank you
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Post by imahappyman on May 26, 2022 12:27:28 GMT -5
I bought the PT-1 about 4 months ago to match my BAS-x A2 (160 watts per channel) which I had been using as a power amp for front 2 channel with my Yamaha AVR. Worked and sounds great.
Using the USB in on the PT-1 with the Bas-xA2, I loose about 30-40% of my gain using the USB input versus the line level input. I asked customer service who responded that the problem was lack of power from the USB input device.
Your mileage may vary.
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Post by hondaman01 on May 30, 2022 20:41:02 GMT -5
Yes it does seem like you need to turn it up but it turns up .
Even under 40 it's not that soft.
Just turn it UP!!!
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Post by boltman on Jun 24, 2022 10:48:07 GMT -5
Does anyone know the actual spec on how much gain this preamp provides on line level? It's not listed in the spec section on the website. From the looks of this thread, it could be pretty low, which is kind of a deal breaker for me. If it actually provides at least 12 db of gain it looks like a no brainer second preamp for me. I also noticed the phono section has poorer s/n performance than the XPS-1, but higher MM gain (44db). I'm thinking my XPS-1 might be a better phono section, which would require using one of the only two available analog line inputs for phono. It would be nice to hear from anybody who has compared them.
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KeithL
Administrator 
Posts: 10,261
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Post by KeithL on Jun 24, 2022 11:49:12 GMT -5
The Volume range on the PT1 goes from 0 to 80. At a setting of 68 it has unity gain on the line level inputs. (And about an extra +12 dB of gain over that.) Does anyone know the actual spec on how much gain this preamp provides on line level? It's not listed in the spec section on the website. From the looks of this thread, it could be pretty low, which is kind of a deal breaker for me. If it actually provides at least 12 db of gain it looks like a no brainer second preamp for me. I also noticed the phono section has poorer s/n performance than the XPS-1, but higher MM gain (44db). I'm thinking my XPS-1 might be a better phono section, which would require using one of the only two available analog line inputs for phono. It would be nice to hear from anybody who has compared them. |
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KeithL
Administrator
Posts: 10,261
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Post by KeithL on Jun 24, 2022 12:00:51 GMT -5
Something worth mentioning here.... That just plain isn't a problem. In the old days it was usually not considered to be a good idea to max-out a Volume control. The reason is that, in the old days, a lot of preamps really would start to distort if you turned them up "past 12:00 or so". That isn't true any more with modern equipment. As long as the actual output voltage is within its capabilities the PT1 is not going to distort. With the PT1 that's around 4V - which is plenty of voltage to drive any normal amplifier to full output power. So, as long as you can get it as loud as you want, it doesn't matter if it's set to 20... or 40... or even 70. And, if you do hear noise, it's probably NOT coming from the preamp.) The only problem would be if the source was at such a low level that the preamp didn't have enough "free gain" to boost it to a usable level... And that will only happen if the source itself is poorly recorded... (Which isn't likely to be a problem with good quality content.) Hi guys, is there a way to increase gain in this preamp? I have it coupled to a basx a300 and I need to get it to around 40 on the screen to get some decent sound levels. Mind you, I use dcm time windows 1a which are notoriously power hungry, but I believe the a300 150 watts on 8 ohm should have been enough??? Thank you |
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Post by boltman on Jun 24, 2022 13:47:42 GMT -5
Thanks for that Keith! Do you have an opinion on whether the XPS-1 is a better phono option to use vs the PT1 built in phono section?
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Post by AudioHTIT on Jun 24, 2022 19:55:32 GMT -5
Thanks for that Keith! Do you have an opinion on whether the XPS-1 is a better phono option to use vs the PT1 built in phono section? It would be expected that the XPS-1 is a better phono preamp, but if it were me, I’d start with the PT-1 using the built-in phono stage and see how you like it, it may be just right for your system. If after using that a while you want to try to improve the phono, then try the XPS-1. That way you have a good basis for comparison and you’re only changing one component at a time. |
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Post by boltman on Jun 25, 2022 14:21:05 GMT -5
Thanks for that Keith! Do you have an opinion on whether the XPS-1 is a better phono option to use vs the PT1 built in phono section? It would be expected that the XPS-1 is a better phono preamp, but if it were me, I’d start with the PT-1 using the built-in phono stage and see how you like it, it may be just right for your system. If after using that a while you want to try to improve the phono, then try the XPS-1. That way you have a good basis for comparison and you’re only changing one component at a time. I've got the XPS-1 already. It seems to have much better s/n specs than the PT1. The 44db gain of the PT1 seems nice though for a HOMC. But 55db of MC gain is a little low for a Denon 103. So if I keep the XPS, it will need one of the two analog line inputs, which is a drawback. Other than that it would be nice to go from 3 components (DAC, XPS-1, line pre) to one component. Thanks for the reply! |
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Post by AudioHTIT on Jun 25, 2022 21:30:35 GMT -5
It would be expected that the XPS-1 is a better phono preamp, but if it were me, I’d start with the PT-1 using the built-in phono stage and see how you like it, it may be just right for your system. If after using that a while you want to try to improve the phono, then try the XPS-1. That way you have a good basis for comparison and you’re only changing one component at a time. I've got the XPS-1 already. It seems to have much better s/n specs than the PT1. The 44db gain of the PT1 seems nice though for a HOMC. But 55db of MC gain is a little low for a Denon 103. So if I keep the XPS, it will need one of the two analog line inputs, which is a drawback. Other than that it would be nice to go from 3 components (DAC, XPS-1, line pre) to one component. Thanks for the reply! Ah, then you’d be able to make the comparison right away, I like my XPS-1, but haven’t really listened to anything else in some time. Do you have other analog devices that giving up an input would deprive you of something else? But your right, the PT-1 might do it all and give you one box. |
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mycuff
Seeker Of Truth
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Post by mycuff on Apr 8, 2024 13:27:00 GMT -5
Hello, this is my first post.
I recently purchased a Emotiva TA1 and primarily plan to use it as a preamp with an upgraded and recently restored Hafler DH220. It sounds very good with both Klipsch La Scalas and JBl L100T speakers. The volume is surprisingly low however, either when using as a preamp or with the integrated amp. Hondaman says it isn't soft for him at 40, but for me a volume of 40 out of 80 is casual listening on the La Scalas and just background level on the JBLs. By background I mean eating dinner with friends and talking at normal conversation levels with the speakers playing unintrusively 20 ft away. I know that is subjective but I don't currently have a way to measure dbs. I also know I can simply turn the volume up. And I know it sounds good when I do so. But Clau77 posted he got a decent level of sound at 40 on his DCM speakers. I'm not getting that on my JBLS, which are more efficient. I would like perspectives of others that own the PT1 or TA1 on what halfway (40) should sound like. Halfway using my Hafler DH-110 preamp and the JBLs is darn loud and with the La Scalas will quickly drive any person out of the room. This is a factory refurbished TA1, by the way.
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