Congrats on the amps! I've been enjoying mine for about 5 months now; these amps really sing!
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Hi Pettyfeversk, congrats on your new XA 60.5 monoblocks! Your enjoyment of them totally comes through in your review.
When you had your thread on if the 60.5's sound better then the single chassis 30.5, I chose not to post, however I knew if you auditioned them the results would be what you finally heard with your own ears.
For fun take a look at my review here on the GON of the 60.5's that I use in my system to compare how I experience their performance compared to your impression of them.
Thank you all for your kind words. Teajay, I will read your review tonight after I get home from work. You are right, I am very excited about the amps as they are adding so much to the sound of my system. If you want to say hi at some point, I can be reached by email at firstname.lastname@example.org and can give you my cell phone number. Stephen
The XA30.5 Vs XA60.5 mono blocks is an interesting one.
The 30.5 draws 230 watts at all times and the 60.5 double that. I have the 30.5 and run it 24/7 at the electricity cost of $15 per month.
If you have sensitive speakers and turn the amps from standby to on, wait 1 hour, and then play music, an hour or two later you reach optimal sound quality. Left on 24/7, you can play right away and get optimal sound in 25 minutes. How often do you listen? I listen 3 Hrs per day.
Another fact is at the same volume, within the limits of the 30.5 you get a simpler circuit (half the power transistors) and a purer sound IMO, YMMV. Simpler is better, given essentially the same design, at half the cost!
Do Not let the 30 w/ch @ 8 ohms rating fool you! You actually get 60 Class A ave., 100 Class A peak, and over 200 w AB ave. into 4 Ohms! How much power you actually use for everyday listening, the type of music, room size, and speaker efficiency should give the best buy.
Thanks for your response. I listen pretty much each night after work for about 3-4 hours and more on the weekends. I agree with you and think speaker efficiency is an important point as the previous speakers I owned before my current speakers were much easier to push and the 30.5 did it easily. It was not as easy with a bit more of a load like my current speakers. I owned the 30.5 for about a year so I was very familiar with its sound before I heard the 60.5 monoblocks. I have not found that the 30.5 delivered a purer sound. In fact, my opinion is that the 60.5 monoblocks have as pure a sound as the 30.5 but they give much more that the 30.5 could not give to my current speakers. As I stated above, I get a fuller sound and where I really hear differences are when i have the amps playing music at low to mid volumes. The bass is tighter as they take more control of the woofers and the sound is smoother and delivered with much more ease.To me, its all about the match between the amps and the speakers to achieve the best sonics.
One word evaluations like "FULLER" when comparing the many characteristics of the sound quality of music reproduction is meaningless! You give no info on your source or musical taste.
You are simply "justifying" more expensive is better. There is only a 3 db difference. A doubling of "apparent" volume requires a 6.8 db difference as studies have shown.
Every time I have compared, over time, almost identical amps of different power from the same manufacturer the smaller amp has been better at low volumes. YMMV!
This is what I was referring to when I talked about respecting other people. Using words like "meaningless" and attempting to discredit someone is not what it is about for me. I gave my thoughts about the differences that I heard between the Pass XA30.5 and the Pass XA60.5 monoblocks. I am not trying to justify anything whether it be cost or quality of sound. If you are happy with the 30.5 and it is wonderful in your system, that is all that is important. I lose interst in Audiogon discussions when participants are trying to make a point and use negativity directed at someone elses comments. To many of these discussions head in that direction and I will not partake in that. Thank you for your thoughts and enjoy your system. Stephen
I generally agree that often the simpler and less complex component (given equal built quality) sounds superior. However I think you`re off base with your reply to Stephen. Look, he compared both amps in his system and clearly preferred the larger Pass amp. End of story. He trusted his ears which is the only way to go when direct auditioning is an option. There`s no reason to question his motive.
I just read your review and found it very informative. Your pleasure with the new amps is very apparent through your writing. What you describe is actually quite similar to my experience from when I switched from the XA100.5 to the XA160.5. Like in your system, a speaker change necessitated the amp change.
As I have said a few times before, it has been my experience that the larger Pass amp within a series (Aleph or XA.5) sounds better in my system than the one just below it in power rating. This may be because my speakers have tended to be fairly inefficient. Sure, one can do calculations about room size, speaker efficiency, Class A watts, but in the end, the listening results should be all that matters.
Finally, I agree with all of your comments about Reno HiFi. Mark is a pleasure to work with.
Thanks for the response. I wrote that in the beginning of May when I made the move from the Pass XA30.5 to the PassXA.60 Monoblocks. Its interesting to see your response as just this week I upgraded to the Pass XA100.5 Monoblocks and am in the process of burning them in. They have about 70 hours on them but I have noticed many differences between the two sets of amps. I will write more on my system page once I get more hours on the new amps. What is your thought on burn in with the XA series? The 60.5 were demos and used but the new 100.5 set, I am doing all of the burn in. You have a lot of experience with Pass amps. Do you think they reach a settled in point at 100 or 200 hours or does it not make that much difference? Do you turn them off at night totally to recharge the capacitors or just let them ruin for hours. Thanks for your thoughts. Stephen
Well done for writing was is a very enjoyable and nicely written review. It is obvious how much enjoyment you are gaining from the Pass monos, and it's nice that you chose to share your thoughts with us. It's great to see you move up to the 100.5's btw which are my pick of the current XA.5 series. They are lovely amps & i'm sure you will get a lot of enjoyment from them! Btw, I just submitted a review of my Boulder 1060 which will hopefully be up by the end of the day.