[sep297]

Thanks for the advice on the 28's you see them in dealers etc and it is difficult to tell next to other big amplifiers etc, so the practical experience of living with them is very useful.

Regards


Stuart

[G E]

Thanks for the advice on the 28's you see them in dealers etc and it is difficult to tell next to other big amplifiers etc, so the practical experience of living with them is very useful.

Regards


Stuart

They are easy to live with because they pull their weight.

[sep297]

Thanks for the advice,

I went with the 28’s and the BR20 in the end and no regrets so far.

Cheers

Stuart

[viz]

I think it was probably a mistake to get them. Please get something even more ridiculously sublime and sell the 28s to me.

[pmcd]

Clive   I currently run 7BSST2 to power my ATC SCM50PSL Classic's that are 85dB efficient and are somewhat comparable to your PMC'c     - 5dB on my end      so I find the ATC's do not come alive until higher volume listening levels are achieved ! and low listening levels are not attainable without a huge loss in detail of the music.
Also I had my system in a quite large room where it didn't preform that well at all, moved it int a small 12x12 heavily dampened room that I built and it sounded unreal but still needed high volume but bass was improved so much.  I was also considering as you are to go the 28B route but I couldn't get an in home audition as my location to a dealer.
                                                                                     Paul

[clive101]

Not too sure of you question.... but I found better detail at lower volumes with the 28s than the 7s.
I found the 28 amps grip the speakers... Power is king not for loudness but for gravities.
Perhaps try to get a secondhand pair you will not be disappointed.
Depends on your geographical location what options you have ?

[Clive197]

We’re you in the Cyrus line at one time.  Maybe what hi if? I recognize your user name

Hi Schmidtmike76

I think you will find that’s me. I’m Clive197, clive101 is someone else.

Sold all my Cyrus kit when moving over to Bryston and am now very proud owner of a 4B3 and BR20.

[clive101]

Hi Everyone,

I am using a Chord Dave balanced out to balanced in on the 28 (s)....
Just wondered if anyone prefered the RCA input over Balanced with the 28 (s) who had a choice of both with the same source ?

Is there any difference inside the amp for example does it convert RCA to balanced ?

Thanks

[sfraser]

This is a very interesting thread. I can understand why a more powerful amplifier in the same series (7B cubed VS 28B cubed for example) could sound better at high SPL's , particularly with a speaker as capable as the PMC's. But I am perplexed that you would experience such a difference at low volumes while only pushing a watt or two. I would have suspected the two amps from the same series to sound very similar at low output levels ?

Cheers,

Scott

[Rod_S]

The Bryston amps I believe run in Class A mode at low wattages and as you step up the series from 3 to 4 to 7 to 28 the available power increases and so does the Class A wattage range before each amp switches to Class AB. Class A may have a different tonal characteristic vs Class AB.

So depending on how low, low level listening is and how many watts are being used where say a 7 may have moved into the AB range the 28 may still be operating within it's A range which may be contributing to the difference.

[G E]

I ran across this thread while searching for something else but thought I’d add an update / observations.

My system has seen some improvements but the core remains the same: Bryston 28 squared, Pass Labs XP-32, VMPS-30 speakers

In the intervening years I upgraded all ICs and speaker cables, power cords, and got the Well Tempered 254-GT turntable and Grado Aeon cartridge.  BTW, this table and cart are magical!  The musicality! The detail!  Music coming out of the blackness. It’s really something.

The sound transformation is something absolutely wonderful. Almost beyond words.  The most surprising improvement came from better wires.

I know this is a touchy subject, but moving from Black Cat 32xx series to their Graceline Setsuna v2.2 took my system to a new level. Improved detail, better bass, “quieter”.  It’s hard to believe unless one experiences it.

The power cables were also upgraded. Had Carda M on a couple components and now all 4 positions have Cardas Clear Beyond XL. Until recently I’d never been a believer that power cords could make a difference. But in my system they have and it’s easy to hear.

So here I am at the age of 70 with the system of my dreams. Been working to get to this place for 60 years. Some tears and quite a few $$$ to get it  right, but wow oh WOW!

And my Bryston 28 squared mono blocks are the lynch pins.

I just wish James Tanner would consider building pure Class A mono blocks with 200 watts of power each. That would be something.

How about it James?