In-Stock Cassette Shells
CASSETTE SELECTION GUIDE
Duplication.com has a selection of over a hundred different cassette shells and variants, with dozens in stock and immediately available. We base our stock on demand, so if you want us to restock a shell please let us know! We can also quickly restock for special orders.
Cassettes are available for duplication with print and packaging, or as blank tapes with your choice of length.
The stock levels should be quite accurate, but there is a high probability there are some miscounts. Inventory is not allocated until a payment is made and production starts. We always have restocks on the way which are not counted here. If you need more than what we have available, contact us.
In Stock (100+ Units)
RED SW
TONRREDSW
9360 in stock
Low Stock (< 100 Units)
Out of Stock
AQUA
TONRAQUABLUE
0 in stock
BRICK
TONRBRICK
0 in stock
Cassette Cases + Boxes
TI = Record tabs in
TO = Record tabs out
NR = Normal bias recording, 120 µs EQ playback
CR = High bias recording, 70 µs EQ playback (for chrome or cobalt tape)
Many people put chrome or cobalt tape into normal shells. To do this you
MUST have a cassette recorder with a BIAS Selector button.
You will not be able to
record correctly on later-model cassette decks which use an auto-sensing pin to determine
the bias and EQ.
TABS IN or TABS OUT
Note: Most of our cassettes are TABS OUT (check out tabsout.com for a cassette podcast) and for normal bias tape. If you
want to record on regular cassette decks you must put a piece of scotch tape over the record
tab holes, or choose the TAB IN cassettes... or disable the record tab sensor on your
machine with some duct tape or a paperclip!
Notes:


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TI = Record tabs in, any machine can record on these tapes
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TO = Record tabs out, for duplicated cassettes or professional
machines, you can record on these tapes if you put some scotch tape over the hole or
if you use professional duplicators.
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NR = Normal tape (aka Type I tape or ferro), machines record and play
back with a 120 µS equalisation curve.
-
CR = for high bias tape (chrome or cobalt), has an extra notch to tell
the record machine to use higher recording bias and to use 70 µS record and
playback EQ. One of our tricks is to use standard normal bias cassette shells with
high bias cobalt or chrome tape, and a special equalisation during recording. This
lets us have louder and brighter cassettes.
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Type IV = c-zero has a notch for metal bias
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Screws: the two halves of an audio cassette shell are either held
together with 5 screws, or are sonic-welded with no screws. One
type is not neccessarily better than the other.
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Liners: also known as slipsheets or foils, every cassette has liners
to support the tape hubs. The tape liners play a critical role in permitting a
smooth rotation of the tape hubs. The liners are rippled to apply a slight spring
pressure on the tape hubs.
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Pressure pad: The pressure pad is a wool pad mounted on a spring and
applies pressure on the tape as it passes over the recording and playback head.
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Leader tape: every C-zero has about 15 to 20 seconds of leader tape.
The leader tape is usually a clear, frosted, red, or blue-tinted plastic. You cannot
record on the leader tape.
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Magnetic leader: We also have cassettes loaded with magnetic leader
tape to permit instant-start recording. For example court reporters may want instant
start cassettes so they don't miss a word.
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Rollers: Most C-zeros have a roller in each lower corner to guide the
tape. Rollers that are out-of-round cause wow in the recording. Rollers that are not
precisely made can also cause azimuth problems. Some cheap cassettes did not have
rollers.
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Guide posts: Most C-zeros have guide posts located before the rollers
to help isolate fluctuations in the supply and takeup hubs from causing wow and
flutter in the recording.
Place a duplication order or buy blank cassettes
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