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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 20% 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.
AMPLIFIERS: Solid-StateSolid-state amps with their inherent higher-damping are uniquely
suited to control the higher-mass of real woofers (10" & greater).
If you love tubes, bi-amp with tubes on top, solid-state on bottom.
since 1972.
switch on-the-fly class-A or class-AB
fabled Accuphase P-400 twin-mono amp,
2 monoblock amps on one chassis,
switchable on-the-fly between
50w/8 class-A or 200w/8 class-AB,
highly-efficient cooling system
eliminates the heat-damage typical
of other "class A" power amplifiers,
precision 1-db/step attenuators
eliminates the need for a preamp,
useful peak-&-hold power meters,
upgraded 5-way output connectors.
Magical on electrostatic loudspeakers!
fyi, Accuphase stereo amplifiers typically
have a single pwr-supply for both channels;
the P-400 you see here be a rare exception,
with the benefits of separate monoblocks
in a cool-running compact design of the
finest quality and legendary reliability.
Accuphase P-400 twin-mono amp 
since 1974.
fabled ATC SPA2-150 power amp,
twin-mono "audiophile" version,
200w/ch/8, XLR-Bal in, discrete
wide-band non-clipping design,
on-board diagnostics w/display,
the best of British technology,
transparent and musical, 57#,
drives difficult loads w/ease,
outperforms Nagra MPA at
one-third the cost and heat.
(or, you could pay 5x more for new
darTZeel 108 with half the power)
ATC SPA2-150 twin-mono amp a Bigger-Bolder-Better Bedini 25/25...
fabled Bedini 100/100-DE c.1983,
#133DE, 100w/ch/8, 200w/ch/4,
19" rack-mount panel + handles.
(or, you could pay more for a Bedini 25/25 & get less).
matching 66DE preamp with MM Phono available.
Bedini 100/100-DE amp Seatbelts recommended for Home-Theater applications!
fabled Crown K1 stereo amplifier c.2003,
last Version!, big pwr/snd, small size/wt,
controls multiple large woofs in a vice-like
grip and drives difficult loads with ease,
legendary reliability & fail-safe protection
of the amplifier & your valuable speakers!
350w/ch/8, 550w/ch/4, 750w/ch/2, 32-lbs,
XLR-Balanced in, detented Volume pots,
rack-mount with handles, 100~240vac.
(or, you could pay 8x more for a new
Spectron Musician III SE Mk2 amplifier)
Crown K1 stereo power amplifier 
since 1938.
like no other...
fabled Denon POA-8000 "class A"
monoblocks, 200w/ch/8, 48 lbs,
ultra-stable Feed-Forward design,
input level control, subsonic filter,
AllegroMods eliminate heat-damage,
improve sound & deliver more power.
(or, you could pay more for a pair
of Denon POA-S1 plus a forklift)
matching PRA-6000 preamp avail.
Denon POA-8000 monoblocks 
fabled Kenwood L-05M monoblocks,
100w/8, DC~600kHz, 6-8-16"hwd.
matching L-07C preamp available.
Kenwood L-05M monoblocks 
fabled Kenwood L-09M monoblocks,
300w/ch/8, switched-attenuator,
power meter, AllegroMods™.
* tech-note: 106V rails w/dedicated xfmr for each rail!
matching L-07C preamp available.
Kenwood L-09M monoblocks 
you can pay more, but you can't buy a better Krell.
fabled KRELL KSA-150 dual-mono,
300w/ch/4, 600w/ch/2, 1200w/ch/1,
non-switching single-plateau bias,
XLR-Balanced in, 90 lbs, c.1990.
"The KSA-150 has to be one of the
smoothest, sweetest amps around...
bass is phenomenal." −ST/Stereophile.
(or, you could pay 17x more for
a new pair of Krell Evo-600's)
Krell KRX xover also available.
Krell KSA-150 dual-mono amp tube front-end, mosfet output...
Lector VM-200 hybrid amp,
100w/ch/8 and 150w/ch/4,
14GW8 Input+Driver tube,
mosfet output, low feedbk,
gloss-black side panels.
(or, you could pay 12x more for new
Lamm M2.2 hybrid mosfet monoblks)
Lector VM-200 "brid" 
Linn Klimax Chakra 500 Twin, aka Chakra Twin,
linear/analog design w/advanced pulse-locked ps,
XLR-Balanced inputs, WBT posts, 200w/ch/4,
low on heat-bulk-weight, high on sound quality,
upgrade your Linn Klout at AllegroSound.com
Linn Klimax Chakra 500 Twin
Linn Klimax Chakra Twin
Linn Klimax Twin
Linn Chakra Twin
Linn Twin * note: above Linn links go to same info; click any one.
a Paravicini design.
LUXMAN M-4000 twin-mono amp
fabled Tim de Paravicini design,
best of 2000-4000-6000 Series
(larger M-6000 & single-ps M2000
& mosfet M4000A are less good!),
precision 1db/step attenuators
eliminates need for a preamp,
average & peak power-meters,
180w/ch/8, c.1976, number 1393,
much point-to-point hard-wiring.
fyi, M-4000 has bipolar current stage;
M-4000A has mosfet current stage;
bipolars trump mosfets re current.
matching T-110 tuna available.
LUXMAN M-4000 amplifier 
since 1952. a Ken Ishiwata design.
Marantz MusicLink MA-24 monoblks
(formerly Marantz Esotec series),
#47 and #55 of 100 pairs produced,
rated 30w Class A, copper chassis,
6"h - 8"w - 14"d, champagne-gold.
matching SC-22 preamp available.
Marantz MA-24 monoblocks 
since 1949, like no other...
fabled McIntosh MC-2600 dual-mono amp,
latest & greatest of the professional-grade
"Big Macs" with XLR-Balanced inputs
and even more McPower to outperform
its illustrious predecessors (2300/2500),
600w/ch, 2200w/100A/pk/ch in stereo!,
4400w/200A/pk/mono!, 2-4-8 Ω taps,
drives any load incl 0.1 Ω ribbons!,
improved fan-management system
unlikely to activate the variable-speed
fans under typical domestic conditions.
Legendary musicality, reliability and
fail-safe protection for your speakers,
rack-mountable, c.1992. ST in Stereophile:
"Once you've experienced and lived with a mega-amplifier,
whether tubed or solid-state, it's difficult to return to one
of moderate power - and by moderate I mean even a few
hundred wpc - especially if your goal is to reproduce without
strain the dynamic range of live orchestral performances..."
(or, you could pay 8x more for Boulder 2060)
click for McIntosh MC-2600 dual-mono amp since 1949, like no other...
no, you're not seeing double, just the
first double-balanced amplifier ever
produced (each phase of the balanced
signal is balanced) &, imo, not equalled
by anyone, including McIntosh Labs.
fabled McIntosh MC-1000 monoblocks,
discrete and balanced from XLR-input
to your loudspeakers, 5kW/160A/pk,
will drive anything above a dead short
& sound sublime under all conditions,
rare Collector's Chrome Edition plus
AllegroMods™. The last amplifier
you will ever need or want.
since 1949, like no other...
fabled McIntosh MC-2120 amp,
unique autoformer design,
120w/ch/stereo, 240w/mono,
2-4-8-16 Ohm taps, Level-
controls, Headphone-jack,
PowerGuard prevents clipping,
protecting amp & your speakers,
drives any load incl 0.1 Ω ribbons!
Legendary musicality & reliability.
(or, you could pay 5x more for Moscode 401HR)
click for McIntosh MC-2120 
Mitsubishi Diatone DA-A15DC amp,
2 mono amps on one solid chassis,
150w/ch/8, latest and best version,
variable input sensitivity each ch.
Mitsubishi DA-A15DC amp selectable Low-Pass & High-Pass filters facilitate bi-amping.
fabled NEC M-50 monoblock amps,
100w/4, 240w/pk/2, 57A/pk, 5~300kHz,
unique selectable Lo-Pass & Hi-Pass
filters facilitate bi-amping & protect
your delicate drivers from damage,
Volume contol, fluorescent meters.
NEC M-50 monoblock amps "M stands for Magic."
fabled Onkyo M-510 twin-mono amp,
#40 of 43 produced for U.S. market,
2 monoblock amps on one chassis,
Champagne-gold with lacquered
persimmonwood matches M-588,
300w/ch/8, 500w/ch/4, 2Kw/pk/ch/1,
140 lbs of magical music replay.
Onkyo M-510 twin-mono amp "M stands for Magic."
fabled Onkyo M-588 twin-mono amplifier,
two monoblock amps on one chassis,
c.1993, successor to fabled M-510 with
Balanced inputs, Champagne-gold with
lacquered persimmonwood matches 510,
200w/ch/8, 750w/pk/2, AllegroMods™.
Mate with Sansui C-2301 preamp
for a Magical music experience.
Onkyo M-588 twin-mono amp "perfect balance of detail & musicality w/holographic soundstage"
fabled Pioneer Series20 M-22 amplifier,
2 monoblock amps on one cast-chassis,
AllegroMods™ eliminate heat-damage,
improve sound and deliver more power.
PB in TAS: "My fave 25W class A amp is the
Pioneer M-22. It offers a perfect balance of
detail & musicality with a truly holographic
soundstage. I like it better than M-03, DR-2,
DR-3 & Bedini for driving my classic Bozaks."
And this one-of-a-kind M-22 with extensive
AllegroMods™ is way better in every way;
more texture, more body, more musical...
* this is NOT your grandpa's stock M22!
Pioneer Series20 M-22 twin-mono amp stacked pr of fabled PSE Studio V Balanced Monoblocks
Professional Systems Engineering
PSE Studio V Monoblocks c.1990,
#50359/360, XLR, 120w/8, 230w/4,
XLR Balanced and RCA inputs,
17"w - 3.5"h - 10"d, 23 lbs.
(or, you could pay 3x more for
BelCanto M500 digital monoblks)
PSE Studio V monoblocks 
QUAD 606 amp #27093 c.1997,
last Version plus AllegroMods™,
130w/ch/8-Ohms, 220w/ch/4-Ohms,
stable into any load with any signal,
outperforms 909 and others driving
Quad ESL-63-988-989-2805-2905.
"Here the newer 606 showed a clean pair of heels to
the older 606, handling musical transients with greater
aplomb & losing the thicking of midrange that was the
only note of coloration in the original unit." − HiFiNews
QUAD 606 stereo amplifier a Masaru Nagami design.
fabled SONY ESPRIT TA-N900 monoblks,
linear amp w/pulse-locked power supply,
original rosewood cabs and marble tops.
matching SE-P900 parametric available.
SONY ESPRIT TA-N900 monoblocks 
fabled SONY TA-N77ES amp c.2002,
200w/ch/8, 800w/pk/2, peak meters,
Direct + Volume-controlled inputs,
58 lbs, outperforms later models.
SONY TA-N77ES amp 
SONY TA-1010 integrated amp
c.1970, 2 MM phono, 15w/ch/8.
SONY TA-1010 amplifier not for sale at this time.
SONY TA-3200F amplifier c.1971.
SONY TA-3200F amplifier 
AllegroSound
− Established 1973 −
"love what you listen with"
Los Angeles, California USA
Rick@AllegroSound.com
CONTACT AllegroSound 
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