Eleuke
M. Gerarda
Waikiki
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Kanstul, Trevor James "Renaissance", Olds, Gerarda, Wisemann, "compensating" system info.
Left: 01-13530 (BE1062-2-0) 3-valve
Euphonium. Right: 01-13540 (BE1065-2-0) 4-valve Euphonium.
Both of these student models are non-compensating.
Left: 01-13500 (BE967-2-0) medium-large
bore Sovereign. Right: 01-13510 (BE968-1-0) large bore Sovereign.
Both these models feature the compensating
system.
Left: 01-13595 (BE2051-2-0) Prestige 11" bell. Right: BE2052-1-0 Prestige 12" bell, lacquer finish.
BESSON EUPHONIUMS |
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| 01-13525 | 1000 SERIES OUTFIT 3 VALVES LACQUER | BE1062-1 |
$2,994.00 |
| 01-13530 | 1000 SERIES OUTFIT 3 VALVES SILVER PLATED | BE1062-2 |
$2,994.00 |
| 01-13535 | 1000 4V BOTTOM SPRUNG NON COMPENSATING LACQ. | BE1065-1 |
$3,384.00 |
| 01-13540 | 1000 4V BOTTOM SPRUNG NON COMPENSATING SILV. PL | BE1065-2 |
$3,384.00 |
| 01-13490 | SOVEREIGN 4V COMPENSATING M-LARGE BORE LACQ. | BE967-1 |
$12,824.00 |
| 01-13500 | SOVEREIGN 4V COMPENSATING M-LARGE BORE SILV PL. | BE967-2 |
$12,824.00 |
| 01-13510 | SOVEREIGN 4V COMPENSATING LARGE BORE LACQUER | BE968-1 |
$12,824.00 |
| 01-13520 | SOVEREIGN 4V COMPENSATING LARGE BORE SILVER PL | BE968-2 |
$12,824.00 |
| 01-13590 | PRESTIGE 4V COMPENSATING M-LARGE BORE 11" BELL LACQ | BE2051-1 |
$15,383.00 |
| 01-13595 | PRESTIGE 4V COMPENSATING M-LARGE BORE 11" BELL SILV. | BE2051-2 |
$15,383.00 |
| 01-13605 | PRESTIGE 4V COMPENSATING M-LARGE BORE 12" BELL SILV. | BE2052-2 |
$15,383.00 |
BESSON ACCESSORIES |
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| 01-16550 | CASE TO SUIT BESSON 1000 SERIES/INTERNATIONAL SERIES EUPHONIUM | $466.00 | |
| 01-16557 | CASE TO SUIT BESSON SOVEREIGN 968 EUPHONIUM | $1,451.00 | |
| 01-2052 | CASE TO SUIT BESSON PRESTIGE EUPHONIUM | $1,466.00 | |
DENIS WICK ACCESSORIES |
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| 01-16770 | SILVER CLEANING CLOTH | DW4920 |
$13.75 |
| 01-16775 | LACQUER CLEANING CLOTH | DW4921 |
$9.25 |
KAN-5515 (980-1) 3-valve non-compensating euphonium.
Also available in silver plate.
Left: KAN-5521 (985-1) 4-valve in-line, medium-large bore, 12" bell, lacquer finish, non-compensating.
Right: KAN-5523 (985L-1) 4-valve side action, large bore, 12" bell, lacquer finish, non-compensating.
Also available in silver plate.
KAN-5525 (975-1), dual bore, 4-valve side action, hand-lapped monel valves, 3 water keys, 12" bell, lacquer finish, compensating, large-shank mouthpiece receiver. Also available in silver plate.
KANSTUL EUPHONIUMS - By special order only |
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| KAN-5515 | 3 VALVES .570 BORE 12" BELL LACQUER | CEU980-1 |
$3,699.00 | |
| KAN-5516 | 3 VALVES .570 BORE 12" BELL SILVER PLATE | CEU980-2 |
$4,185.00 | |
| KAN-5521 | 4 VALVES INLINE .570 BORE 12" BELL LACQUER | CEU985-1 |
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| KAN-5523 | 4 VALVES SIDE ACTION .593 BORE 12" BELL LACQUER | CEU985L-1 |
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| KAN-5522 | 4 VALVES INLINE .570 BORE 12" BELL SILVER PLATE | CEU985-2 |
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| KAN-5524 | 4 VALVES SIDE ACTION .593 BORE 12" BELL SILVER PLATE | CEU985L-2 |
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| KAN-5525 | COMPENSATING 4V SIDE ACTION .570/.593 BORE LACQUER | CEU975-1 |
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| KAN-5526 | COMPENSATING 4V SIDE ACTION .570 - .593 BORE SILV PL | CEU975-2 |
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45-50475 Olds 4 valve, 11" bell, medium-large bore, non-compensating, silver plate.
F. E. OLDS EUPHONIUMS - by special order only |
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| 45-50460 | 3 VALVES 11" UPRIGHT BELL 571 BORE LACQUER | NA37 |
$3,299.00 |
| 45-50465 | 3 VALVES 11" UPRIGHT BELL 571 BORE SILVER PLATE | NA37S |
$4,135.00 |
| 45-50470 | 4 VALVES 11" UPRIGHT BELL 571 BORE LACQUER | NA38 |
$3,740.00 |
| 45-50475 | 4 VALVES 11" UPRIGHT BELL 571 BORE SILVER PLATE | NA38S |
$4,595.00 |
TJ-3REU7550SG TREVOR JAMES RENAISSANCE EUPHONIUM
TREVOR JAMES RENAISSANCE EUPHONIUM |
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| TJ-3REU7500SP | TREVOR JAMES RENAISSANCE Bb EUPHONIUM, 4-VALVE (NON-COMPENSATING), SILVER PLATED, 11" (28 CM) YELLOW BRASS BELL, 0.571" BORE (14.5 mm), STAINLESS STEEL VALVES, CUPRONICKEL SLIDES, w CASE (with wheels) & TJ 4EU MOUTHPIECE | $3,095.00 |
| TJ-3REU7550SG | TREVOR JAMES RENAISSANCE Bb EUPHONIUM, 4-VALVE (NON-COMPENSATING), SILVER PLATED WITH GOLD PLATED SLIDES AND VALVE CAPS, 12.30" (31.24 cm) YELLOW BRASS BELL, 0.571" BORE (14.5 mm), STAINLESS STEEL VALVES, CUPRONICKEL SLIDES, w CASE (with wheels) & TJ 4EU MOUTHPIECE | $3,395.00 |
Click here to see the complete Trevor James Renaissance Brass range.
M.Gerarda
JBEP-1150S M Gerarda euphonium, 4-valves, compensating, 3 water-keys, silver plated, outfit including mouthpiece and light weight case with backpack option.
M.GERARDA EUPHONIUM - while stocks last |
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| JBEP-1150S | 4 VALVES SIDE ACTION (3+1) COMPENSATING SILVER PLATE | $3,899.00 | |
Below (clockwise from upper left): case for Gerarda compensating euphonium, bell engraving, tuning slides and water keys.
WISEMANN EUPHONIUM |
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| WI-DEU-500SP | EUPHONIUM, SILVER PLATED - coming soon | TBA | |
| WI-DEU-700-SP | Wisemann Euphonium Bb, Silverplated finish, 4 stainless steel piston valves (3 upright + 1 side), rose brass leadpipe, cupronickel slides, Bell: 11", 0.571" bore, red brass leadpipe, cupronickel slides, stainless steel piston valves, case and m/p | $1,695.00 |
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Detail of Gerarda Euphonium showing 3 sets of tubing on the near side of the valve cluster. See below for furhter illustrations.
For a complete discussion of this fascinating subject complete with great and easy to understand diagrams, go to http://www.dwerden.com/eu-articles-comp.cfm at David Werden's fantastic website.
Basically, the compensation system (first developed by D J Blaikely in 1878) uses an extra set of tubes attached to the 1st, 2nd and 3rd valves to correct the tuning of the low register of brass instruments automatically. The 4th valve is connected back via the other valves so that these extra tubes are brought into play whenever the 4th valve is used in combination with the other valves. Each of the 1st, 2nd and 3rd valves is therefore a double valve, with two sets of internal tubes to either bypass or connect with the normal tube loops and the compensation tube loops.
Detail of Gerarda compensating euphonium showing the fourth set of valve slides.
Each valve lowers the pitch of the note being played by adding extra length to the tube producing the note. The first valve lowers it by a tone, the second by a semitone (you can see this as it has the shortest loop on it), and the third by a tone-and-a-half* or a minor third. This is all fine until the player wants to lower the tone by more than this last interval. The fourth valve lowers the tone by a perfect fourth (2.5 tones or 5 semitones) - again no problem with tuning there provided the extra tube on this valve is the right length.
Detail of underside of
valve cluster and fourth valve of Gerarda compensating euphonium.
For other intervals, however, the valves have to be used in combination, and this means that the combined extra length will not be sufficient to equal the desired length, as the mere addition of the second valve cannot equal the increase of the basic tube plus the first valve multiplied by the necessary ratio. Lowering the pitch by a semitone on a conical bore instrument (the horn family, including the tubas, euphonium, baritone, cornet etc) requires an extra 6% of tubing length to that of the first note. So lowering by an octave means the tube length must more than double.
For example, the third valve extra tube adds 19.1% percent of the fundamental length of the tube in the instrument. The first valve adds 12.36%, and the second valve adds 6%, so adding the two by pushing valves 1 & 2 only adds an extra 18.36% tube length - so the note will be sharp compared to just pushing the 3rd valve. While this is a small (almost negligible) difference on a small instrument, the problem becomes greater as more valves are used and the larger the instrument is. This problem is solved by the automatic compensation system.
*(I have resisted the temptation to use the "sesquitone" name for this interval - see the harmonica info page)
The fourth valve can be operated by the left thumb as an independent valve (as above) or locked in the active position so that all compensating tubes are in play at all times (as below).
