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* K=1000. PR=pair. PTC=partial trades considered. AP=as pictured. ?=FAQ.
MissionAllegroSound has been dedicated to the
accurate recording and reproduction of
acoustic music for well over ¼ Century.
For those who value ears-on experience,
AllegroSound is "hear" to assist you.
for AllegroBio 
Featuring* AllegroQC™ with 37+ yrs experience.
* Safe-packing. Trust your purchase to
one who knows & cares to pack it right.
World-Wide Shipping
ConditionSome be 10~60 yrs old with imperfections,
non-functioning lamps, old capacitors, etc;
NO "mint", "minty", "perfect", "excellent".
AllegroGrading™ : 5 = New-In-Box,
4 = VeryGood, 3 = Good, 2 = Fair, 1 = Poor.
All pre-owned/used unless otherwise noted.
See Pics, MainsVoltage, Terms below.
PicsPics are shown for display purposes
& may not represent exact condition;
text trumps pics - read description
and email if you need clarification.
Mains Voltage & What To Do About It
220~240 Vac
PricesFrom computer, place your pointing-arrow
ON the rotating $-sign below each listing;
price will pop up within 2 or 3 seconds;
if not, Click "HELP" in the floating Menu >>>
* all prices U.S. currency f.o.b. Los Angeles, California USA.
* prices without deposit subject to change without notice.
* AllegroLayAway™ with 30% non-refundable deposit.
* AllegroTradeUP™ with your approved TRADE-IN.
Trade-insTrade-in & purchases are not final until received,
inspected, tested and approved by AllegroSound.
Items failing to meet described condition will be
returned at customer's expense plus $50 min fee
for inspection/testing; additional fees may apply.
Terms & ConditionsEquipment is carefully inspected, cleaned,
variac'd, tested for dc-offset & auditioned
in ref system before it leaves our facility.
Quality work with TLC takes quality time;
I work at my pace & have orders ahead
of yours; item will ship when testing is
completed and packed for safe transit.
Suitability sole responsibility of Buyer.
Not responsible for errors/semantics/etc.
All items subject to prior sale or no sale.
Prices subject to change without notice.
All equipment as-is without warranty.
All sales f.o.b. Los Angeles California;
all matters and costs beyond this point,
incl, but not limited to, packing, freight,
duty, taxes, fees, are sole responsibility
of Buyer. All sales final. No refunds.
Add 8.75% SalesTax in California.
Moving-Coil Step-UPs
since 1972.
fabled Accuphase C-7 MC Headamp,
dual-mono differential RET design,
26 db of gain plus Bypass-switch,
outperforms the usual suspects.
Accuphase C-7 headamp fabled Deane Jensen xfmrs
fabled Audio Interface
CST-80L, rare Mk.2 ver,
MC step-up transformer,
dual-mono construction
with 2 precision-matched
double-MuMetal-shielded
and critically-damped
Deane Jensen transformers,
31-Ohm inputZ, 31-db gain,
.005% THD 1kHz at -10dbv,
20Hz~95kHz -1db, outperforms
Cotter-Verion and most others.
(or, you could pay 20x more for
a new Audio Note AN-S8 xfmr)
fabled BRB Systems 1B mc headamp
discrete, pure DC pwr via 2 AA batts.
(or, you could pay 10x more for
Expressive Technologies SU-1)
Counterpoint SA-6 MC TUBE Headamp
c.1984, 2-12AX7B, frt-panel bias adjust,
obps, rack-mount panel, AllegroMods™
a John "Curly" Curl design...
fabled Mark Levinson JC-1AC
MC Headamp, adjustable gain,
MC's from < 0.1mv to > 0.4mv,
outboard AC pwr sup, c.1972.
Mark Levinson JC-1AC passive gain, zero noise, wide-bandwidth...
Quicksilver MC step-up Transformer,
1Hz~100kHz -3db, 250 Ohms, 23 db,
capable of 2.8V 20Hz~20kHz output.
Yamaha HA-1 MC Headamp,
all-discrete, adjustable gain,
extruded aluminum casework,
same series as fabled T-2.
matching T-2 tuner available.
Yamaha HA-1 MC Headamp 
AllegroSound
− Established 1973 −
"love what you listen with"
Los Angeles, California USA
Rick@AllegroSound.com
CONTACT AllegroSound 
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