"love what you listen with"|
♥ CROSSOVERS ♥
This page is updated DAILY & is optimized for view-
ing on a LARGE screen with screen-pointer; devices
without screen-pointer will have limited functionality
(you may not be able to view image-info and prices);
bookmark this page for later viewing on computer.
• recommended browser: Firefox / Palemoon.
• if you have only IE, select "Compatibility View".
* iPhone - iPad - iPod with iOS7 or later ver iOS:
place finger on image & hold until text shows in
lower part of iScreen; click here for iScreenshot.
If you arrived here via Search Engine or via Toolbar,
you may be on old page; click here for Current page.
* To hide MENU, Click "Hide<MENU>Show"
above the MENU; Click again to Show.
* Items in RED are internal links; Click for more info;
be patient, as some are large & need time to load.
* IMAGES be INFORMATIONAL via pop-up TEXT.
Place screen-pointer over the image - do not click!
info will show in 2 secs; if not, Click "help" below.
* NO web-bugs/trackers on this site.
* NO cookies baked on this site.
* NO Java brewed on this site.
* NO info gathered on this site.
* NO flash running on this site.
* NO login required on this site.
* NO off-site linkage on this site.
* NO malware/scareware/houseware.
* NO email addy's sold-traded-shared.
* Allow Scripts in your Browser.
• if menu does not follow as u scroll, u have scripts disabled!
• to resize, rotate scroll-wheel while holding down Ctrl-key.
• recommended browser: Palemoon or Firefox.
• if you have only IE, select "Compatibility View".
* K = 1000. PR = pair. PTC = partial trades considered.
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! AllegroBio
* AllegroQC™ with 40 yrs experience.
* Safe-Packing. Trust your purchase
to one who knows & cares to pack it
so you receive it in same condition.
* Ci with HTS# provided on foreign
shipments reduces unnecessary
delay and damage in Customs.
Some be 10~60 yrs old with imperfections,
non-functioning lamps, old capacitors, etc;
NO "mint", "minty", "perfect", "excellent".
All pre-owned/used unless otherwise ntd.
AllegroGrade™ on scale of 1~7:
7 = New-In-Sealed-Box.
6 = New-In-Open-Box.
5 = Demo-In-Open-Box.
4 = VeryGood. 3 = Good. 2 = Fair. 1 = Poor.
See Pics, MainsVoltage, Terms below and
Frequently Asked Questions (FAQ in Menu).
Pics 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
From computer, place your screen-pointer
over the spinning gold disc in each listing,
do not click! Price will show in 1~2 secs;
if not, Click "HELP" in the floating Menu.
* 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.
* AllegroTradeUP™ with your approved trade-in.
* AllegroBuyBack™ on selected items (see FAQ).
AllegroSound trade-ins/purchases are not
final until received, inspected, tested and
approved by AllegroSound. Items failing to
meet represented condition will be returned
at Customer's expense plus $90/hr labor for
additional fees may apply.
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.
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 AllegroSound.com
Multi-amping with electronic crossover be the path to audio virvana.
fabled Accuphase F5 electronic crossover,
2 or 3-way, 12-18 db, plug-in Fc cards.
Accuphase F-5 electronic crossover
Accuphase CB cards for
F5 - F15 - F15L xovers.
Accuphase FB cards
for F-20 & F-25 xovers.
fabled Dahlquist DQ-LP1 electronic xover,
35~400Hz sweep, 18db active Low-pass,
6db passive Hi-pass, AllegroMods™.
Dahlquist DQ-LP1 crossover
Krell Reference Crossover KRX-1,
3-way or 2-way, plug-in Fc cards,
6 calibrated attenuators, discrete,
rack-mt, outboard ps, c.1985.
Krell KRX-1 crossover
Luxman FL-202 Balanced Electronic Crossover,
locking Fc, independant 12-18/db Slope, Polarity
and Level for HP and LP, XLR-Balanced in/out,
outperforms usual suspects, 5-7-17", 15 lbs.
matching Luxman C-7 Balanced Preamp avail.
Luxman FL-202 balanced crossover
Nikko CO-23 elect crossover,
discrete, 2-way, 12-18 db/oct,
black rack-mount faceplate.
Nikko CO-23 crossover
fabled Pioneer SF-700 crossover
c.1973, 3/2-way, 6-12-18 db/oct,
Pioneer SF-700 crossover
fabled Pioneer SF-850 crossover
c.1976, 3/2-way, 6-12-18 db/oct,
Pioneer SF-850 crossover
fabled Pioneer Series20 D-23
4-way electronic xover c.1977,
switch-select Fc and Slopes
for each pair of 8 outputs, 20#.
(or, you could pay 5x more for
three Pass Labs XVR1 2-ways)
Pioneer D-23 crossover
fabled John Curl Symmetry ACS-1
"transient-perfect" variable xover
c.1981, Fc 45~4500Hz, rack-mt.
Symmetry ACS-1 crossover
any Fc! Stereophile A-rated. a Nelson Pass design.
fabled Nelson Pass Threshold PCX
electronic xover, 18db/stereo/2-way,
Fc changeable in seconds via
that drop into way-cool special
shipped with Fc of your choice,
gold-plated pcb, all discrete,
four calibrated attenuators,
17" or 19"rm, AllegroMods™.
* 2 available for TRI-amping.
"the most transparent and least-conspicuous
active crossover I've heard."—DO/Stereophile.
(or, you could pay 2.5x more for Pass Labs XVR)
Threshold PCX crossover
since 1957. Spkr designer's dream-machine!
fabled UREI 525 electronic crossover,
2/3-way stereo, 4/5-way mono,18 db,
dial-in any frequency within one Hz
via the built-in frequency-counter,
speaker designer's dream-machine!
UREI 525 electronic crossover
with Frequency & Time correction
fabled White Instruments DSP-5024 c.1997,
Frequency & Time Speaker-Correction,
XLR-Balanced ANALOG in/out, 1U RM,
front-panel controls and Display.
White Instruments DSP-5024
− Established 1973 −
"love what you listen with"
Los Angeles, California USA
AllegroSound et al assumes no responsibility for use or misuse of products, services, info, etc.
design & original content ©AllegroSound, los angeles, california, usa. all rights reserved.
♥ MENU ♥
* Amps Tube