Why is my amp requiring as much volume gain?

I once owned a Bryston 4B and noticed exactly what you mention, but maybe not to the same degree. I did have to turn up the volume knob a little more than with any of my other amps to get the same perceived loudness. But no matter the volume, that Bryston had the best, most controlled bass I've ever had in my system. When talking with Gilbert Yeung of Blue Circle and Mike Farnsworth of Talon Audio a few years ago at CES, both commented on how well Bryston amps do bass.

Thanks guys.I might check to see where the seting is for 1 or 2Mv and yess were not talking about going from a 50 to a 300 watt.Notice the newer maggies eat it up even more than before (went for III to 3.6) and they have always been hungry.Might at some point slap another Brsyton on.And Gunbei I will agree that the bass is nice with Bryston but I sold Krell for about 6 years and when I heard other amps we sold (Mac,Adcom etc-small shop) or in the field where I heard other gear saw or rather heard why so many speaker manufaturers used krell for demo'ing there speakers.Nothing else (Class or A/B)had the "grip" if not quantity of the Krell.Now that came part and parcell with a decent if brite high end (was told by freinds and amaggie krell was bad match since they had such stong resolution) an a metalic midrange I found clinical and etched.Fatiguing and not a good match for a Thiel defintely.Well I have a KSA300S I picked up froma a former customer but toild my buiddy (it's his maggie system actaully) that he should save money and not buy my amp so I found him Bryton which has (and this is general oppinionm) much better chromatics thrughout the frequency range.Yes good amps at a good price built to last.There is beter but you have to pay through nose (Levenson comes to mind here).Me I'd like to hear all the brew ha ha about the new John Curl Parasopund JC1 400 wat amp.Reviews I always take with a grain of salt but noticed more than one reviewer bought his review smaple and that makes me sit up and take notice.Not cheap at $K but think it may develope a Plinius like cult following given first few years reaction.
Thanks
Chazzbo

dont worry were your volume is all equip has different sesitivities

Just to put this up if anybody does a search for same subject contrary to what GS 5556 mentioned the 4 BST does not have an adjusrable input sensitvity switch.It i permanetly set at 2Mv so coresponinding pre must be set up at a higher point that the Denon wjhich may have been at unity gain at say .7MV.Haven't gone to hear system at buddies but he say's most music sounds better especially in harmonics and I need to see if if truly high volujme is can be achieved with out overdriving pre but again it may just be a psychological thing with where the volume has to be.Owner has claimed that some muisc like and old Lee Morgan recording sounded tyerrible as if the trumpet where being played in another room (the bathroom) and not with the band.But you can't judge a system change with one bad recording especially since overall assesement is thumn\bs up.Will pot one more to see if there are anb problems.Maybe I thoughld chenge it from bi-wire to single wire set and that would help though this is counterintuitive.
Chazz

P.S.
Baclk in the 80's when Denon made the 1500 amps standards had not been established or standardized the way they are today.Back in the 70's it got so bad the fed's through the FTC had to get involved because of course a particular spec can be "hyped" when not taken into a level playing field with others.Thus you had "1000 watt" car ampos that sold for $29.99 but were no more powerful,and delivered no more cvurent than another manufaturer being more honest who might sell a 100 watt amp that sounded no less lod than the "1000 wat monster".This of course takes place today when say s sub manufacturer claims "20-20Khrz +/- say 15 db".Most reputable manufacturers will either stick to +/-2 or 3 db and give perhaps another spec at +/- 9db.
The issue now is that bnack in tha day it may have made sense to have pre's with "hot" outputs or input sensitivity because even with phono sections voltage output sources were lower with LP's.But the advent of CD's led to line level to go to a higher level from say 1.5 to 5 Mv.Thus THX (*which the Bryston is certifed as) m,eets the THX 2MV input senstivity.BTW went over to system and after hearing his old MGIII's that sounded "Ok" with the DFenons the 3.6's sounded like shit.Now harmonically,soundtsage every perameter they sound great anmd I realize why Maggies are considered by many to be the best value in audiophile speakers/Yes they won't reproduce aricraft engines taking off (as they suck down their unquenchable thirst for current)in terms of volume and yes they lack deep (last octave or two) of bass they deliver the goods.Now with the Brystons (or I imagine a good AR VT100 or pair of Hurricaines) they sound great and revela losy recodings where as the old set up just masked the glory and the gory.Makes you want to invest in better digital (maybe leave the Proceed as a transport and get 24/96 upsampling D to A),compare the phono in the Mac 712 to another,and even for this wire skeptic give some good matched wires with a high cost to value ratio (Kimber?Cardas-nah too soft good fopr softening Krell nastinties,and even with Cats compare Mappleshade to Omega Mikro's etc).Anybody who has any suggestions and is reading this other than a pair of REL or vandersteen FAST multiple small driver subs than can blend which is the nect step I am all ears.
Thanks
Chazzbo