- MONO
- Singular source
- Like old LPs
- Stereo forerunner
- Teenage affliction, in short
- Single prefix
- The kissing disease
- Chronic college affliction
- Not stereo
- Kissing sickness
- Kissers get it
- Like Dylan's early work
- You can get it from kissing
- You might get it from kissing someone
- Hi-fi setting
- Part of MSG
- Single-channel
- One-track
- The M in MSG
- Old LP format
- Pre-stereo
- Like early recordings
- Teen malady
- Not going through multiple channels
- Like many old records
- Like most early LPs
- Stereo predecessor
- Stereo's precursor
- One-channel
- Hi-fi description
- Like many doo-wop records
- MSG component?
- Rail heading?
- Like early Elvis albums
- Like old 78s
- Like old Elvis albums
- Pre-stereo sound
- Unseparated sound
- Like old recordings
- [XXX]
- Kissing disease
- Peace activist from Tokyo
- It's less than stereo
- M of MSG
- Single: Comb. form
- Tone beginning
- Like old sound systems
- Kissing disease, for short
- Having just one speaker
- Like many audio books
- Like 45s
- Like most pre-'60s recordings
- Like old records
- Having a single channel
- Like pre-stereo sound
- Like 45 records
- Stereo preceder
- The "M" of MSG
- Like many 45 records
- Prefix for tone or chrome
- Prefix meaning "one"
- California lake near the Nevada border
- Stereo alternative
- Like some old records
- Prefix meaning 46 Across
- Numerical prefix
- Uni- cousin
- Uni- relative
- Like early LPs
- MSG part
- Prefix for tone
- Single-track
- One-quarter of tetra-
- One-third of "tri-"
- Prefix for rail
- Prefix like uni-
- A third of tri-
- A quarter of tetra-
- It means "singular"
- Non-compact disc designation
- Early LP format
- Single prefix for rail
- One prefix for rail
- Prefix meaning "singular"
- Starter like uni-
- Having only a single channel
- Like some sound systems
- So-called kissing disease, familiarly
- Lo-fi?
- The kissing disease, for short
- Glandular fever, familiarly
- Disease caused by herpesvirus, briefly
- Island in Treasury group.
- Island south of Bougainville.
- W. African river.
- Alone: Comb. form.
- One: Prefix.
- Alone: Prefix.
- Containing one atom: Prefix.
- A kind of rail.
- Kind of rail.
- Howling monkey.
- Prefix with rail or gram.
- An infection, for short.
- Prefix for gram or lith
- Relative of stereo
- Common disease, for short
- Prefix for rail or plane
- Kind of plane or gram
- Blood ailment, for short
- Prefix for tone or plane
- Kind of gram or maniac
- Kind of plane
- Kind of rail or plane
- Prefix with rail and gram
- Prefix for tone or gram
- Prefix with rail or tone
- Madeleine ___, cosmetician
- Noted cosmetician
- Precursor of stereo
- Prefix for rhyme or rail
- Prefix with plane or tone
- Cosmetician Madeleine ___
- Plane prefix
- Stereo's predecessor
- Stereo precursor
- Like '50s LP's
- Kind of recording
- Glandular fever, for short
- Like early records
- Like early Beatles recordings
- Like the Beatles' early work
- Like 1950's recordings
- One beginning?
- With 69-Across, what each set of letters in parentheses represents
- Like early Elvis Presley albums, e.g.
- Like the earliest Beatles recordings
- Precursor to 41-Across
- Early Beatles songs are in it
- One to start?
- Teen woe
- Common campus health diagnosis
- Like early Elvis records
- MSG ingredient?
- Like early vinyl records
- Pre-stereo format
- Source of some fevers
- One up front?
- Like original Buddy Holly and the Crickets recordings
- Little bit of MSG?
- Like early Elvis recordings
- Lead-in to rail
- Lead-in to syllabic or chromatic
- Prefix with -cratic
- Prefix with syllabic
- Audio option
- Non-stereo
- Prefix with rail or theist
- Early hi-fi format
- Old hi-fi format
- Electronic British duo not in stereo?
- Uni-
- Illness that kept me out of 4th grade for 3 weeks, briefly
- Synonym for 28 Across
- Leadoff single?
- Opposite of "poly-"
- Prefix similar to "uni-"
- Like pre-stereo recordings
- Tone start
- Plane or rail variety
- Attachment for "rail" or "plane"
- The kissing disease, casually
- It's not stereo
- Less than stereo
- Not quite stereo
- Stereo? Not quite
- Like early Beatles records
- Like many old recordings
- Prefix for "chrome"
- California lake
- Prefix for gram or tone
- Kind of tone
- Bussers' malady?
- Epstein-Barr virus
- Prefix for "rail" or "tone"
- Like the first LPs
- Prefix with rail or chrome
- Teen disease
- Short collegian's ailment
- Maniacal leader?
- 78's sound
- Like 1950s LPs
- Prefix for mania or chrome
- Requiring just one speaker
- Like 1950s records
- Prefix with tone or chrome