Conn listed the 88H in 1954 as its Artist Symphony trombone, with a large bore, a rotary F attachment and a red brass bell, and Conn still sells it today. Wikipedia lists it among the few models Conn was known for that carried on into the Conn-Selmer era. Conn's many owners show up in where it was made. Conn left Elkhart in 1971 and moved professional brass to Abilene, Texas. When Abilene closed in 1986, brass production went to the King plant in Eastlake, Ohio, which Conn-Selmer announced it would close in 2026. Today's 88H has a 0.547-inch bore, a 0.562-inch F attachment, an 8½-inch rose brass bell and a rose brass outer slide, which give it a darker, warmer sound than yellow brass. Conn now pitches it for symphonic and solo playing. The New Vintage 88HNV is Conn's own nod to how much players like the early Elkhart horns. Check the slide and rotor first, and use the serial to tell an Elkhart horn from a later one.
88HO, the open-wrap F attachment version88HCL, with Conn's CL2000 rotor88HSP, silver-plated88HNV New Vintage, an Elkhart-built homage to the early Elkhart 88H with a lighter rose brass bell
Who it suits
A large-bore professional trombone for a serious high school, college or adult player, not a beginner. If a teacher has asked for a large-bore horn with an F attachment, this is one of the standard choices.
Spec at a glance
Brand
Conn-Selmer
Model
88H
Line
Symphony
Type
Trombone (brass)
Level
Professional
Key
B-flat with F attachment
Years made
1954–present
Made in
USA: Elkhart, Indiana until about 1971, Abilene, Texas, in the 1970s and early 1980s, then Eastlake, Ohio, from 1986
Bore
0.547 in, 0.562 in through the F attachment
Bell
8-1/2 in rose brass (yellow brass also offered)
Typical eBay ask (Oct 12, 2026)
$2,750–$3,900
Build and case88H
Valves and slides
Traditional wrap F attachment with a standard rotor; rose brass outer slide, chrome-plated nickel silver inner slides
Finish
Clear lacquer or silver plate
In the case
Woodshell case and a Conn 5G mouthpiece (current catalog)
How to date one
Conn's serial chart (on the Conn-Selmer site) runs from about 652,000 in 1957 to 949,000 in 1962, then letter prefixes from c (1963) through r (1972), and ga prefixes from 1973. From 1987 the first two digits plus 50 give the year, so 37 means 1987. For 1980–1986 the chart covers only student trumpets and cornets.
What to check before you buy
The hand slide and rotor are the parts to worry about, and Conn's own care leaflet calls a dented slide or sticking valve expert work. Lacquer wears through where hands hold the horn, which Conn put down to perspiration.
01Slide action: Ask the seller for a video running the hand slide through all seven positions. It should glide evenly with no catches.
02Slide tubes: Look along the outer slide tubes and the bow in the photos. They should be straight, with no dents, creases or solder patches.
03Rotor: Ask for a video working the F trigger several times. It should return quickly and quietly, with no sticking.
04Serial and era: Ask for a photo of the serial number. Match it to Conn's chart to see whether it's an Elkhart, Abilene or Eastlake horn.
05Bell: Look at the rose brass bell and its rim in the photos. Lacquer wear where hands hold it is normal, but a creased rim needs a shop.
06Case and mouthpiece: Check the photos for the case and a large-shank mouthpiece. The 88H takes large-shank mouthpieces, so a small-shank one won't fit.
We'd buy a used 88H from a US seller well under new prices, like the one shown in its case at $1,861 delivered. There are at least 23 for sale, and dealers set most of the $2,750–3,900 band, with new ones at $3,459–4,472 and refurbished ones at $3,329, while US used ones ask $1,511–3,145 from sellers with feedback. An 88HO has the open-wrap F attachment, and Elkhart, Abilene or Eastlake tells you the era, which the serial confirms against Conn's chart. The hand slide and rotor are the costly parts, so ask for a video of both moving and budget for a shop check-up. Skip the $943 delivered one from a zero-feedback seller, far too cheap for an 88H.
Listed now
23
For parts
0
Typical ask
$2,750–$3,900
Full range
$850–$4,472
★Cheapest
$1,511.14est. delivered
The lowest delivered 88H from an established seller at $1,511, titled Abilene, TX, where Conn built its pro brass in the 1970s and early 1980s. The photo shows worn lacquer and no case is titled, so ask for the serial and a video of the slide and rotor.
An 88H with the F attachment and rose brass bell, shown in its case, at $1,861 delivered and well under the band. There's no condition claim, so ask for the serial and a video of the slide and rotor.
CONN 88H Symphony Professional Tenor Trombone With F Attachment Brass Rose Brass
Titled a 1960s Elkhart 88H, the era Conn's New Vintage model pays homage to, at $3,073 delivered, under the $3,879 most new ones ask. Ask for the serial to back up the date, since Conn's chart has numbers up to about 949,000 by 1962 and letter prefixes from 1963.
Delivered prices include shipping as eBay quoted it to a US address on Oct 12, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.
Snapshot
For sale on eBay
8 of 23 listed
Checked . Some may have sold.
Delivered prices include shipping as eBay quoted it to a US address on Oct 12, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.
Used
★Cheapest
Abeliene TX Conn 88h
$1,511.14est. delivered
$1,400.00 + $111.14 shipping
Buy It Now$1,400.00
Offers accepted+
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Good buy
Titled Abilene, TX. Worn lacquer in the photo, no case titled.