"love what you listen with"

                  ♥ SPEAKERS ♥

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* K = 1000.     PR = pair.     PTC = partial trades considered.

 allegrosound dot com 

AllegroSound has been dedicated to
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.

Trades welcome!  allegrosound dot com AllegroBio 

* AllegroQC with 40 yrs experience.
* Safe-Packing. Trust your purchase to
one who knows and cares to pack it so
you receive it in the same condition :-)
* Commercial Invoice with proper HTS#
provided with foreign shipments reduces
unnecessary delay & damage in Customs.

World-Wide Shipping

Most be 30~70 years old with imperfections
including, but not limited to, old capacitors,
non-functioning lamps, off-center knobs,
oxidation, scratches, nicks, dings, etc
NO "mint"!  NO "minty"!  NO "perfect"!
All pre-owned/used unless otherwise ntd.

AllegroGrade on scale of 1~6:
  6 = New-In-Sealed-Box.
  5 = New-In-Open-Box.
  4 = Demo-In-Open-Box.
  3 = Good. 2 = Fair. 1 = Poor.
* most be AllegroGrade 3 - actual pics
sent prior to packing if not already posted.
All sales as-is and final, so if you have any
special requirements regarding condition,
tell me before sending deposit/payment.
See Pics, MainsVoltage, Terms below
& Questions & Answers (Q+A) in Menu.

Pics are shown for display purposes
& may not represent exact condition;
text trumps pics - read description
and email if you need clarification.

allegrosound dot com  Mains Voltage & What To Do About It
allegrosound dot com  220~240 Vac 

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* prices NET-USD f.o.b. Los Angeles, California, USA.
* k = US$1,000.   ptc = partial trades considered.
* tbd = to be determined.   mp = matched pair.
* prices w/o deposit subject to change w/o notice.
AllegroLayAway with 20~30% down.
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AllegroBuyBack on selected items (see Q+A).

AllegroSound trade-ins/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 $90 minimum
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additional fees may apply.

 Vacuum Tubes
All tubes sold by AllegroSound have been
carefully tested on the finest equipment
and, therefore, are technically "used".
* most plug-in tubes carry our exclusive
100-day exchange/1-yr pro-rated warranty.

  Terms & Conditions
Equipment 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 & costs beyond this point,
including, but not limited to, packing,
freight, ins, taxes, fees, duty, are sole
responsibility of Buyer. All sales final.
L.A.C. Sales Tax applies in California.

      allegrosound dot com     allegrosound dot com allegrosound dot com           

Why upgrade?
When your system doesn't sound good, u don't feel good;
when you don't feel good, your work is not good;
when your work is not good, your marriage is not good;
when your marriage is not good, you get divorced;
when you get divorced, you loose your system.

Upgrade today at

Quote from departed Fi Magazine Jan-Feb 1997 Vol.2 #1:
"I played a spectacular performance of Shumann's Andante
and Variations by Martha Argerich & friends, EMI 5 55484;
about 2 minutes into the piece, a solo French horn call is
mimicked by the ensemble of 2 pianos, viola and cello;
on this system with different, more expensive spkrs,
I thought that passage was played by two horns,
quite a feat since only one horn was present;
when I replayed the piece through the RS's,
it became obvious that I was hearing the
other instruments imitating the horn call.

If your spkrs are not able to differentiate piano
and strings from horns, it's time to upgrade!!!!

fabled George Augspurger horns,
all-wood construction, 800Hz,
outperforms the usual suspects,
performs best with TAD TD-4001
but can be used with any driver.
(or, you could pay 2x more for
a pair of TAD TH-4001 horns)

          hot-setup surround speakers!
Bose 901 Series V Direct-Reflecting spkrs
with original 901 Series V Active Equalizer,
walnut. Hot-setup surround speakers!
 Bose 901-V Direct-Reflecting Spkrs

since 1927.          a Greg Timbersmodulardesign
fabled JBL Project K2 S9500 #194A/B    
(the original and ultimate Project K2)
Virtual-Point-Source loudspeaker,
small-footprint, modular construction
(heaviest section is pedestal at 110#),
inspired engineering by Greg Timbers,
tour-de-force build by JBL, 98db/w/m,
37"h - 23"w - 19"d, 328 lbs assembled.

"On a scale of 1~10, these are a 12."
Andre Perreaux,
(or, you could pay same for pr of non-point-source,
non-modular DD67000 Everest & rent a forklift/crane)

Owner-review posted by Ho Ngo:

 JBL Project K2 S9500
 JBL Project K2
 JBL K2 S9500
 JBL S9500
* note: above K2 links go to same info; click any one.

since 1927.
JBL Signature D216 drivers,
SET-friendly 16 Ohms,
c.1960, need reconing.

since 1927.
fabled JBL LE-14H woofers,
4-inch voice-coil!, 8-Ohms,
one of JBL's finest drivers,
combines the best qualities
of 12-in and 15-in drivers.
surrounds need replacing

(do-it-yourself for $20/pr).

 since 1961.                     a Laurie Fincham design.
fabled KEF Reference Series R-107 c.1986,
3-way, dual 10-inch force-cancelling woofers
w/coupled-cavity loading eliminate coloration
from vibration & floor-boundary that plagues
most other subs regardless of cost, dedicated
equalizer with adjustable Q for ideal matching
to any amp, ss or tube, and placement in any
location in any size room, matched-walnut,
small-footprint, rotatable & removable head,
Optional bi-amp
AllegroMods + Balanced xover.
* 3 pairs available for home-theater or studio.
* woofs need new surrounds - diy kit is $80.

"Music emerges from the 107 like ripples in a clear mountain lake.
There is no sense of strain or stress, even on very loud passages.
Vocal-range magic of Spendor BC1 & SP1 is present here in full
force. Voice is reproduced very naturally, without any coloration.
Neither are instrumental timbres slighted in any way, and
harmonic accuracy is preserved up and down the audio bandwidth.
String fundamentals and overtones are convincingly reproduced,
and woodwinds possess excellent clarity and detail, while brass
has its proper bite, without gratuitous brightness or harshness.
With the right electronics, musical textures are fleshed out with a
convincing mixture of soft & hard, sweet & brash.
" —DO/Stereophile.
"This remarkable speaker represents a challenge to the increasing
performance standards being set by large panel speakers, matching
the best of them in terms of both bass power and extension, while
at the same time conceding little in terms of coloration levels. In fact,
the KEF beats a number of the panel models in such fundamental
areas as tonal balance and response uniformity.
" —MC/Stereophile.
"Recommended as 1 of the few full-range dynamic loudspeakers
that I have experienced to touch the soul, not just of the music,
but of the listener.
" —JA/Stereophile.

• above quotations pertain to full-range op with single
amp; bi-amp
AllegroMods with tuneable electronic
crossover (included) allows solid-state amp to drive
woofers directly, & small tube or ss amp to drive the
MF/HF head, significantly improves performance.

easily changed back to single-amp op when needed.
  KEF R-107 R107 loudspeakers

since 1975.
bending the boundaries of what is possible with the
world's most advanced, musical, reliable transducer.

ideally, drivers should stop moving when the music stops;
only two types of transducers accomplish this; plasma
(Acapella High Violoncello II over 2-octaves, $80k/pr) &
Manger MSW bending-wave transducer over 5-octaves.

fabled MANGER Zerobox 103/3 modular
spkrs featuring Manger MSW/3 "tri-head"
with 3 MSW bending-wave transducers
allowing the main/front MSW to perform
over 5 octaves 160Hz~35kHz (330Hz~35kHz
with included AllegroMods and crossover)
w/ rise-time of 13μs & virtually no ringing!
Repro of piano and brass is a revelation,
outperforming even the Quad ESL-988,
which few speakers at any price can do.
91db/w/m, 5Ω linear-Z from 200Hz~35kHz,
matching sealed-box bass-bins with twin
10" Vifas extend the magic to below 30Hz,
AllegroMods + Balanced Xover.
      "The Song Remains The Same."

what you don't get with the Manger MSW:
NO spit, NO glare, NO etch, NO grain, NO awk,
NO squack, NO shout, NO distortion & NO breakage!

"...should you value musical flow, long-term suitability, dimensional staging,
fleet-footed PRaT and exceptional vocal band above all else, then Zerobox
becomes one of highest recommendations known to me."—Fairaudio 5/08.
", uncolored, extremely extended & fast as greased lightning."—HiFi+.
"...remarkable musical experience..."—TAS 9/01.
"...emotion and authenticity in abundance."—Image HiFi 4/01.
" if the performers were standing in front of me..."—Audiophile 4/00.
"...the Manger sound transducer - an acoustic star..."—Kopfhorer 12/99.
"...the Manger transducer is a brilliant construction..."—Hifi&Records 4/99.
" the rather slowly advancing technology of loudspeaker design, the
Manger MSW represents a large step forwards."—StudioPostPro 2/99.
"...entry ticket to the absolutely finest audiophile systems..."—Stereo 2/97.
"...sets standards re homogeneity & naturalness..."—Sound&Vision 1/97.
"...its most important characteristic is honesty..."—FAZ 1/96.
"...Absolute Top Class I..."—Stereoplay 1/96.
"...only the music is there - simply room-filling and natural..."—FAZ 9/95.
"...all the listeners were overwhelmed by the way the Manger transducer
conjured up a breathtakingly exact spatiality, which the conventional
comparison loudspeakers, irrespective of whether flat-core or direct
radiator, could only at most bring to a limited extent."—Stereoplay 5/93.
"...fatigue-free...high-resolution...impulse-true."—Studiomagazin 4/93.
"...closer to the ideal transducer than ever before."—Klang&Ton 4/93.
" is true what people say about Manger loudspeakers
hardly any other system reproduces the transients - the noise part
at the beginning of a sound, when an air column, string, or cymbal
makes the transition from silence to vibration - as authentically.
It facilitates the perception of tone colors as well as rhythms and the
dynamic emphasis of single notes in a piano phrase."—HiFiConcept 6/15.
"..never has an orchestra from disc been differentiated
more precisely and realistically."—LP 1/14.
" a geologist the MSW meticulously carves out the different layers
of a recording, positions them precisely side by side and one afer another
& gives rise to an as yet unheard total picture of a recording."—HiFiTest 1/14.
"...reproduced music totally balanced at high resolution & performed in a more
effortless, detailed & authentic way than conventional systems."—Audio 11/14.
" soon as I quit my job as an audio critic, I will go and
get me a Manger loudspeaker forever."—i-fidelity 12/14.
"...this is high fidelity on the highest level."—LP 4/15.
"...Five ***** Stars"—HiFiChoice 1/15.
"...the Manger rocks!"—HiFiStars 3/14.

• above quotations pertain to full-range operation with
one amp; bi-amp
AllegroMods w/tuneable electronic
xover (included) allows higher Fc, a solid-state amp to
drive ea woof directly, & a small ss or tube amp to drive
the MSW tri-head, extending performance even further.

(or, you could pay more for ringing cones,domes,ribbons,stats)
 Manger Zerobox 103 modular spkrs

 since 1977.
a Bob Stuart, Allen Boothroyd design.

fabled Meridian M10 Active VPS speakers
(no kibble 'n bits, folks - all analog, all music!)
AllegroMods , each speaker contains 3-way
elect x-over & 4 amplifiers, XLR-Balanced in,
incredible dynamics and room-lock at 30Hz,
modular build, upgraded tweets/wire/caps,
wraped up in beautiful Brazilian rosewood.
 Meridian M10 M-10 Active VPS spkrs

few spkrs at any price are this musically convincing
fabled QUAD ESL-988 Full-Range
Electrostatic Doublet, aka "FRED",
"closest approach to the orig sound",
#901379/81 in special Vintage finish,
last and best of the British Quads
(new ones are made in China, folks),
37" high - 26" wide - 12" deep, 45 lbs.
(or, you could pay 3.3x more for Chinese 2805)
♥ Quad 988's + 606 + Crawley subs/xover 
"...lays serious claim to coming closer to perfection than any
louspeaker ever made for home use; from 40Hz up it is more
neutral, coherent, linear, & transparent, with lower coloration
and distortion, resulting is a "disappearing act" that is still the
envy of designers the world normal-sized or smaller
rooms, it will play at natural levels with purity & accuracy that
spoil u for other designs; when the term "reference standard"
is applied to most spkrs, it is typically as a rhetorical device;
for Quad 988's, it is a literal description.
" —Paul Seydor, TAS
*Quadies will notice PIC is 989; 988 be 15" shorter & out-
performs its larger sib (& most everything else at any $!)
when properly mated to low-coloration subs and driven
by a stable solid-state amp such as QUAD 606

 Quad ESL-988 Electrostatic Doublet
Transform your QUADs into SUPER QUADs
Crawley NHT Trans-Line SUBS (2),
fabled NHT-1259 12" super-woofer,
outperforms larger-heavier-costlier subs,
24-18-14", horizontal (low-profile) or vertical
(small-footprint) placement, very manageable
at 45#, 5-way posts, black w/oak side inlays
or optional piano-black finish on all 6 sides,
doubles as stands for QUAD ESL 57-63-988,
includes sweepable 24-db/oct Bal xover. 
♥ Quad 988's + 606 + Crawley subs/xover
* the acoustic of the recording venue is "encoded" in the
A-minus-B difference-signal; this cannot be "decoded"
with a single mono sub; you need Left & Right ch subs &
a fast-cut-off xover to prevent interference with the main
spkrs; the common 12db slope won't cut it (pun intended).

 Crowley NHT-1259 Trans-Line subs

fabled Raven R1.0 true-ribbons
rare SET-friendly version with
12 Ohm toroidal transformer,
95db/w/m, 4kHz~46kHz.

Soundlab A-1 Electrostatic spkrs,
beautiful dark-walnut complexion,
big, bold, tight and curvaceous.

* due to the extreme transparency of these
speakers (visually as well as acoustically)
we cannot show the other side; sorry, guys.
* note: these have been sold, butt, due to
popular demand, Miss Bootyliches stays.
 Soundlab A-1 ESL's

fabled TAD TD-4001 compression driver
with DP-4001 Be diaphragm, one only.

 TAD TD-4001 / DP-4001

since 1926.
fabled TANNOY Dimention TD-10 Dual-Concentric
"Widebanders", advanced low-compression drvr
with tulip waveguide outperforms older versions,
10-in paper-pulp cone w/twin-roll fabric surround,
titanium super-tweeter adds that touch of "air"
missing in older models (no need for the ST-200
super-tweets at $2k ea), SET-friendly 91db/w/m
and 6Ω minimum below 5kHz, 43"h-14"w-15"d,
bi-wire or bi-amp or single-amp, 70 pounds net.

* all things considered (sensitivity,size,weight,spl,sound),
the "sweet-spot" in Tannoy's Dual-Concentric drivers has
always been the 10-incher imo. Less is sometimes more.

Jason Thorpe, Soundstage 8/2002: "Although it may be related to
the high-calorie tube diet with which I fed them, I'd have to say that
the Tannoy TD10s add their own slight euphonic sweetness to the
upper midrange and treble; either that, or every other speaker that
I've heard presents that frequency range with a layer of grit to which
I've become accustomed. While I like to think that the former
explanation is the correct one, the natural, unforced nature of the
Tannoys makes the latter a distinct possibility...the sense of depth
with which they portray the original acoustic verges on magical...
the Tannoy Dimension TD10s do some things better than any other
speaker I've heard. With their superb dynamics, retrieval of detail &
world-class treble, they infuse life into music. Add in rich, slamming
bass & you're off to the races with a distinctive musical experience.
Steven Stone, Stereophile 10/2002: " eerie verisimilitude
scarily close to that of a live acoustic event...a gargantuan
soundstage produced jaw-dropping dimensional effects,
deciphering even the most densely mixed soundtracks...
glorious midrange...seductively lush...beautifully defined.
Constantine Soo, Dagogo 2004: "TD10's sensitivity boded
extremely well with the 50Wpc 47-Laboratory Gaincard S,
and was an easy load for the Linn Klimax Twin in
partnership with the Harmonix Reimyo preamp, a combo
that pushed the TD-10's performance envelope furthest.
 TANNOY TD-10 Dual-Concentric spkrs 


−  Established 1973  −
"love what you listen with"
Los Angeles, California USA

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