Recent content by EdW

The Topping D90 111 has a digital volume control - use the supplied remote for convenience

The salesman in the hi end audio store is an expert at manipulating your mindset and in most cases does not have your best interests at heart - so he persuades you to buy the most expensive item. After a time he starts to believe his own BS . , , and the sincerity then really shines through :(

Many (most?) of the reviewers on YouTube probably could just about manage to use a digital multimeter but an AP555 audio analyser, ‘scope or RF spectrum analyser are well beyond their capabilities and experience . . . It’s also quite time consuming hard work to capture accurate results...

You’re right here! I think this ‘loophole’, if it ever existed, will be shut down rather promptly. But a more nuanced case - KEF speakers. Based in the UK but owned now by a Chinese conglomerate. It’s less expensive ranges, the Q and R series are made in China - will all the import price...

It won’t help you much but it might be useful to those in the UK. In the UK you can order from Blue Jeans UK https://www.bluejeanscable.co.uk/ They bill in UK pounds, shipping and duty paid and supply very promptly from the US. The speed of service is such that you wouldn’t know they weren’t...

That’s the spirit!

I think you may need a sub with significantly more power to make a noticeable improvement to the KEF R11 meta. Certainly on music. For home theatre and electronic music the bass extension could be still be worthwhile. That’s why I believe SVS’s recommendation for monster subs is right. They...

well not all bad work! The mid/treble coax driver, particularly in the R11 meta can beat most speakers at twice the price. As for the 4X 6.5” baas units have a radiating area of a single 13” driver. If you’re adding subs then they had better be extraordinarily good. SVS don’t actually have a...

The very expensive reference series KEF definitely have better bass extension when tested in free space (Klippel etc) but this means the speakers will sound best a few feet from the wall and if well executed, which the Ref series are, will be very good. The bass shelf on the standard R series...

@amirm reviewed the r11 meta and gave very favourable comments https://www.audiosciencereview.com/forum/index.php?threads/kef-r11-meta-tower-speaker-review.53282/ So if can stretch to $4800 it could very worthwhile. See if you can get a demo,

Depending on country. In US Buckeye amps would be very cost effective and their quality is good. Best bought as a stereo amp perhaps https://www.buckeyeamp.com/shop/amplifiers/purifi/1et6525sa/2_channel A little more powerful into 8 ohm loads than B200 but readily shows its advantages into 4...

Depends where the current limiting occurs first. In the power supply or in the amplifier protection circuits safeguarding the output devices. 400W into 4 Ohm would require a peak current of 14A in the output devices; and for continuous operation at 400W the max power supply rating would need...

Also Blue Jeans cables are air freighted to the UK with all duty/VAT paid - there was a link on their webpage for UK customers with UK prices when I bought. When I ordered they arrived in about 3 days as I recall so as good as any UK supplier.

Audiophonics offer value builds of Purifi amplifiers and are well reviewed. Purifi amps deliver good power into difficult loads and are robust. They perform well beyond the limits of human hearing and of course like any really good amp they don’t have a ‘sound’.

You’re right - we haven’t seen any independent measurements of Purifi 9040 series amp builds - it should be class leading. I hope @amirm will soon have one on his workbench. My only concern about some class D amps is that they will enter current limit (rather than voltage clip) when driving...