Since dx4 is not designed for direct radiation. You should never let them facing at you directly. Try moving your speaker apart to create an equilateral triangle between you and the two speaker and do not toe in the speaker. This should be the best you can get out of the dx4. Other solution could be exchange a pair of pm7a with the dx4, or building a pair of cabinet with front loading horn or wall reflection.
I’m not sure how to react to this statement.
I own DX3, DX4 and PM6A. I have used or heard them in a variety of applications (front horns, back horns, combinations of both, OB, MLTL) and have never come across any information that would justify this assertion.
Would you like to explain?… or do you have any technical information that would support this?
My experience is that DX4 is a little brighter in the upper mid to top, and listening off axis (without EQ) works better.
Alternatively you can do a little dip with a bandpass filter.
😎
Alternatively you can do a little dip with a bandpass filter.
😎
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Oooooh, I heard the Carfrae Little Big Horns a long time ago and I loved them. I heard them with AER drivers. The transition from the bass of the backloaded horn to the subs was very good. On my list to clone at some point...
Absolute Beauty
https://www.facebook.com/share/p/12K8tbm7JeN/
https://www.facebook.com/share/p/12K8tbm7JeN/
The Lowther PX4 Amp is now available for order!
Get ready to elevate your audio experience with the PX4 Push Pull Stereo Power Amplifier. Built with precision and a focus on sound purity, this class-A push-pull amplifier features high-quality tubes like the PX4, 6SN7, 6J5, and 5U4G/5AR4 for unparalleled performance.
Specs: • Output Power: 10W + 10W (6Ω) • Frequency Response: 10Hz – 45kHz • S/N Ratio: 93dB • Variable Feedback Control (0dB to 10dB) • Traditional Cathode Bias (automatic) • Input Sensitivity: 1V/300kΩ • Power Consumption: 200W Max
These things are serious money for a small driver , so it look neat, I haven’t heard them, but at that price, lots of other options come up…
I went to Lowther's official website and I don't see anything about the tube amp they've just released. So I don't know the price, and I can't make any comparisons with my already outdated (not that outdated, eh?) Prima Luna Dialogue Two. But the current equivalent to this Lowther amp (with significantly more power) would be the EVO 100, at $3,295:
How does it compare? Both in sound quality and price? Can anyone give me a definitive answer?
The difference I see at first glance is that it uses tubes that aren't as "common" as the Prima Luna—12AX7s and 12AU7s for the preamp and driver—and a wide range of output tubes to choose from (see attached). The circuit's Auto Bias design allows you to choose between them without any bias adjustments. An advantage that has meant years of pleasure for me, without any inconvenience or wasted time when tube-rolling...
https://www.primaluna-usa.com/integrated-amplifiers
PS: I see that all PL models now include a headphone output. Mine didn't bring it, damn it ! 😡
How does it compare? Both in sound quality and price? Can anyone give me a definitive answer?
The difference I see at first glance is that it uses tubes that aren't as "common" as the Prima Luna—12AX7s and 12AU7s for the preamp and driver—and a wide range of output tubes to choose from (see attached). The circuit's Auto Bias design allows you to choose between them without any bias adjustments. An advantage that has meant years of pleasure for me, without any inconvenience or wasted time when tube-rolling...
https://www.primaluna-usa.com/integrated-amplifiers
PS: I see that all PL models now include a headphone output. Mine didn't bring it, damn it ! 😡
Attachments
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In my opinion, I heard the original 300b from western electric, JJ 2A3-40 and various other tubes like Phillip Holland EL34, GEC KT66 all the way to 212 from PSVane.
Nothing much can compared to vocal with PX25 or PX4, the 300b sound close but the OSRAM PX25 I heard is just a different tonality compared to the legendary WE 300B.
PX25/PX4 work really well with Lowther
Nothing much can compared to vocal with PX25 or PX4, the 300b sound close but the OSRAM PX25 I heard is just a different tonality compared to the legendary WE 300B.
PX25/PX4 work really well with Lowther
IMHO the small input tubes defined the sound quality/fidelity more than anything else... so my small stash of old 6DJ8/12AU7/12AX7 stayed with me everywhere I moved. But, diy loudspeakers the last few years I used mainly Class D stacks (always powered on).
45/300B/EL84/KT66/KT88/various OTL gathering dust....
45/300B/EL84/KT66/KT88/various OTL gathering dust....
@Freedom666 and everyone else
You can post your questions with the live streaming session on the 24th May 2025.
Peter and Martin from Lowther UK will be co-hosting. Everyone is free to join
24th May 2025
https://www.facebook.com/share/1BEgxG2Hdg/
UTC/GMT: 1:30pm
US Central Time: 7:30am
Central Europe Time: 2:30pm
Singapore(ASEAN) Time: 8:30pm
AGENDA:
1. Introduction to Lowther's New Collection Philosophy (5 minutes)
• Brief overview of our four-tier collection approach
2. The Concert Collection (5 minutes)
• The classic Lowther experience designed for self-builders - those who know what they like.
• Complete Lowther line up - minus the Field Coil.
3. The Sinfonia Collection (5 minutes)
• Premium cone technology and other improvements
• Enhanced bass response characteristics
• Notable elimination of the traditional "Lowther shout"
4. The Philharmonic Collection (10 minutes)
• All-Alnico design with comprehensive enhancements
• Significantly improved bass response without sacrificing the Lowther clarity
5. The Grand Opera Collection (5 minutes)
• Our bespoke commissioned offerings using Permadure/REMCO metals
• The pinnacle of full-range driver engineering
6. The Complete Lowther Sound (5 minutes)
• PX4 amplifier and specialty cables
• System synergy for the purest Lowther performance
7. Q&A Session (45+ minutes)
• Open forum for audience questions
You can post your questions with the live streaming session on the 24th May 2025.
Peter and Martin from Lowther UK will be co-hosting. Everyone is free to join
24th May 2025
https://www.facebook.com/share/1BEgxG2Hdg/
UTC/GMT: 1:30pm
US Central Time: 7:30am
Central Europe Time: 2:30pm
Singapore(ASEAN) Time: 8:30pm
AGENDA:
1. Introduction to Lowther's New Collection Philosophy (5 minutes)
• Brief overview of our four-tier collection approach
2. The Concert Collection (5 minutes)
• The classic Lowther experience designed for self-builders - those who know what they like.
• Complete Lowther line up - minus the Field Coil.
3. The Sinfonia Collection (5 minutes)
• Premium cone technology and other improvements
• Enhanced bass response characteristics
• Notable elimination of the traditional "Lowther shout"
4. The Philharmonic Collection (10 minutes)
• All-Alnico design with comprehensive enhancements
• Significantly improved bass response without sacrificing the Lowther clarity
5. The Grand Opera Collection (5 minutes)
• Our bespoke commissioned offerings using Permadure/REMCO metals
• The pinnacle of full-range driver engineering
6. The Complete Lowther Sound (5 minutes)
• PX4 amplifier and specialty cables
• System synergy for the purest Lowther performance
7. Q&A Session (45+ minutes)
• Open forum for audience questions
All of this is well and good but I hope they'll provide driver measurements on their website like they have with the "classic" Lowther drivers as well as the pricing for the new ones. I hope they don't start going the way of AER and Voxativ with their ridiculous prices.