Senior Member
Location: The Black Country
Posts: 6,089
I'm Alan.
Firebottle Head Amp development
I've built a prototype into an old mil spec box whilst I wait for other enclosures to arrive.
Just listening now and performance is excellent. Early days to tell the difference between straight MC input on the KIN preamp or via head amp into MM input, if there is any
I shall be making a demonstrator in a small enclosure which will use a PP3 battery, plus a second model in a larger enclosure that will use a PP9 battery with up to 1500 hours endurance.
I love Hendrix for so many reasons. He was so much more than just a blues guitarist - he played damn well any kind of guitar he wanted. In fact I'm not sure if he even played the guitar - he played music. - Stevie Ray Vaughan
Senior Member
Location: Birmingham
Posts: 6,853
I'm James.
That looks like a sturdy box Alan
Cant wait to hear it!
Main system : VPI Scout 1.1 / JMW 9T / 2M Black / Croft 25R+ / Croft 7 / Heco Celan GT 702
Second System : Goldring Lenco GL75 / AT95EX / Pioneer SX590 / Spendor SP2
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Location: NE England
Posts: 4,173
I'm Jez.
The battle of the head amps commences....
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Drunken Moderator
Location: Staffordshire, England
Posts: 38,125
I'm Martin.
That toggle switch looks like it came off of a Chieftain Tank.
We need more military-grade hi fi in our lives.
Head amp bake-off at the next NEBO?
Current Lash Up:
TEAC VRDS 701T > Sony TAE1000ESD > Krell KSA50S > JM Labs Focal Electra 926.
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I'm AudioAl'sArbiterForPISHANTO.
Good stuff, Alan. We need more head amps in our lives!
I'm sure it'll sound fab. As you heard at mine, with the Paul Hynes, a well-designed head amp always seems to bring a little bit something special to the table, over simply what a standalone MC stage does, although I've found that applies mostly with a valve MM phono stage in the equation.
Sounds good. I'll bring the Paul Hynes, along with my (currently) very lightly-modded LentekOriginally Posted by Macca
Marco.
P.S As mad as it seems, experiment with different brands of batteries, as I've found that they all sound subtly different. For me, Duracell is the best!
Main System
Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & reg mods]. Funk Firm APM Achromat/Nagaoka GL-601 Crystal Record Weight/Isonoe feet & boots/Ortofon RS-212D/Denon DL-103GL in Denon PCL-300 headshell with Funk Firm Houdini/Kondo SL-115 pure-silver cartridge leads.
Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp/Denon AU-310 SUT.
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Preamps: Heavily-modified Croft Charisma-X. LDR Stereo Coffee. Power Amps: Tube Distinctions Copper Amp fitted with Tungsol KT-150s. Quad 306.
Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.
Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.
Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.
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Senior Member
Location: The Black Country
Posts: 6,089
I'm Alan.
Demonstrator external pics.
Internal pics tomorrow
That looks great. What's a head amp ?
Trade: Wakefield Turntables
Location: Yorkshire
Posts: 9,353
I'm Andrew.
Its basically an active version of a step up transformer. Next question what's a step up transformer?
SS
CD Teac VRDS25X(Audiotuned) DECK 1210 Mat Crystal Audio Mods MN Base/Bearing/Platter+Ebony armboard Feet Isonoe PSU Paul Hynes SR7EHD-27XL/DCSXL Ag DC lead/3 Stage Regs/Recap PCB+No Pitch/Strobe/Light ARM SME V(Kondo Ag Rewire&Tags) MC Cadenza Black FGS CABLES Arm Yannis SPD-4 IC Yannis 222 Litz+Ag bullets Power WAR PRE ATC SCA2 SPEAKERS ATC 50ASL STANDS Atacama PHONO Sugden Masterclass PA4 SUT Ortofon ST80SE POWER PSAudio P10
VALVE
PRE Croft Epoch(Modded) AMP Sondex S100 (Modded) SPEAKERS Tannoy 15"MG+RFC Warwick cabs+ Ref XO + Batpure supertweeters DECK Garrard 301 Mat Teunto Bearings 401(Bastin) Plinth Bamboo Arms 3009/3012 PSU Eagle+Tachometer MC Ag Meister II/FGS + Ortofon SPU MONO CABLES Arm Yannis 420.5 Litz+ SpeakerPC Tripple C+WBT-0681 Ag IC Oyaide FTVS-510 AgWBT 0110Ag Phonostages Paradise(4 Box Mega-Modded) / Croft Musicmaker
Lmao. A SUT is a bit of kit which makes MC to MM On the amp ?Its basically an active version of a step up transformer. Next question what's a step up transformer?
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