Aah! Thanks Guy - there are no markings on the case on this A30 to tell which way the switches should be for triode/UL. I know on my old A30 it was 'forward' for triode, in fact I dug out some old photos to confirm so could these be wired the other way around? I've tried both positions and my ears are telling me...
To rear: Full, warm, slightly sluggish.
Forwards: Leaner, faster.
That's why I've been scratching my head.
Whilst you're here, is it ok to switch between modes whilst the amp is live (volume at zero) or best to power down? Thanks.![]()
Richard.
Round & round bits: LP12/Cirkus/Kore/Herc II/Roksan Nima/Hana EL
Megabits: Bluesound Node 2i/TEAC UD-H01 dac
Making it louder bits: Phonostage: Dynavector P75 Amp: Cyrus 8vs/PSX-R Speakers: Royd Sintra II
Connecting it together bits i/c's: Flashback Premier. Speaker cables: Van Damme Hifi
Yes thats ok. Volume down.
That first batch of amps didn't have the switches when they were sent over here. They were sold without however a few customers asked how to fit them & a couple eventually came back to me for me to do it. So it's quite possible that that amp could have the switches wired the other way round by an early owner. What you describe certainly suggests as much.
It's worth experimenting with the 4 & 8 ohm taps aswell.
Excellent - many thanks.
I'll have a play with the speaker outlets too in that case.
Richard.
Round & round bits: LP12/Cirkus/Kore/Herc II/Roksan Nima/Hana EL
Megabits: Bluesound Node 2i/TEAC UD-H01 dac
Making it louder bits: Phonostage: Dynavector P75 Amp: Cyrus 8vs/PSX-R Speakers: Royd Sintra II
Connecting it together bits i/c's: Flashback Premier. Speaker cables: Van Damme Hifi
l cannot keep up.
System; Michell Gyrodec SE/ Orbe Clamp/ Gert Pedersen armboard mod/ HR PSU/ SME V / J7 Tonearm cable/Ortofon Cadenza Black// Jez Arkless Turbo nutter B------ /Trichord Dino+
Amplification and loudspeaker set up is at the moment being split into two groups, comprising the following;
1. Same sources as above; SONY TAF-770ES/SONY CDP761E/Cable Talk 3.1 loudspeakercable/ Harbeth Compact7ES2/ Stands
2. Virtue Audio Sensation M451battery PSU, ClarityCaps upgrade/ Sensation M901/Russian PIO caps with Teflon bypass caps upgrade/ JT Dynamic PSU with various tweaks/ Connex Audio 5N Litz loudspeaker cable, Impulse H6 Loudspeakers.
Me so horny- Impulse H6 Horny
Richard.
Round & round bits: LP12/Cirkus/Kore/Herc II/Roksan Nima/Hana EL
Megabits: Bluesound Node 2i/TEAC UD-H01 dac
Making it louder bits: Phonostage: Dynavector P75 Amp: Cyrus 8vs/PSX-R Speakers: Royd Sintra II
Connecting it together bits i/c's: Flashback Premier. Speaker cables: Van Damme Hifi
System; Michell Gyrodec SE/ Orbe Clamp/ Gert Pedersen armboard mod/ HR PSU/ SME V / J7 Tonearm cable/Ortofon Cadenza Black// Jez Arkless Turbo nutter B------ /Trichord Dino+
Amplification and loudspeaker set up is at the moment being split into two groups, comprising the following;
1. Same sources as above; SONY TAF-770ES/SONY CDP761E/Cable Talk 3.1 loudspeakercable/ Harbeth Compact7ES2/ Stands
2. Virtue Audio Sensation M451battery PSU, ClarityCaps upgrade/ Sensation M901/Russian PIO caps with Teflon bypass caps upgrade/ JT Dynamic PSU with various tweaks/ Connex Audio 5N Litz loudspeaker cable, Impulse H6 Loudspeakers.
Me so horny- Impulse H6 Horny
Location: gone
Posts: 11,510
I'm gone.
Interesting comments Richard have found the same with Royds from the Sorcerer to the Minstrel to (especially) the RR3. They might be 'easy to drive' but I've found they love serious power and enough damping factor to take them to the next level, losing the 'boom' with badly matched amps in favour of bass speed, delineation and texture.
Mana Acoustics Racks / Bright Star IsoNodes Decoupling >> Allo DigiOne Player >> Pedja Rogic's Audial Model S DAC + Pioneer PL-71 turntable / Vista Audio phono-1 mk II / Denon PCL-5 headshell / Reson Reca >> LFD DLS >> LFD PA2M (SE) >> Royd RR3s.
Spot on Neil - for Royds to really sing (and ye gods they can, from the highest rooftops) their tendancy to be very loose at the bottom needs reining in IME. They'll sound just fine on pretty much any amp (within reason) as they're not ruthlessly revealing, but they do need firm control to give their very best.
Richard.
Round & round bits: LP12/Cirkus/Kore/Herc II/Roksan Nima/Hana EL
Megabits: Bluesound Node 2i/TEAC UD-H01 dac
Making it louder bits: Phonostage: Dynavector P75 Amp: Cyrus 8vs/PSX-R Speakers: Royd Sintra II
Connecting it together bits i/c's: Flashback Premier. Speaker cables: Van Damme Hifi