Плата для тестирования развертки частоты и прожига CARDAS

Płyta testowa CARDAS Frequency Sweep and Burn-in Record

Cardas Frequency Sweep and Burn-in Record to wartościowe "narzędzie" do konfiguracji, diagnostyki i konserwacji systemu.

Płyta wyprodukowana przez George'a Cardas'a, mastering wykonał Stan Ricker.

Oprócz standardowych tonów, płyta zawiera względną i bezwzględną kontrolę polaryzacji, identyfikację kanałów oraz zmiany częstotliwości.

Zarejestrowane sygnały pozwalają na skrócenie czasu niezbędnego wkładce dla osiągnięcia optymalnych parametrów oraz późniejszego periodycznego rozmagnesowania systemu.

Side A:

Sweeper - 45 rpm:

Note: This is three cuts, interleaved with smooth sections, to be played at 45 rpm.

Track 1. Short Sweeps, short version (52 seconds)Lock-out

Track 2. Short Sweeps, long version (4 minutes 46 seconds)Lock-out

Track 3. “I’ve Got a Feeling I’m Falling” Artists: Tom Loncaric Band. Music Thomas Waller and Harry Link. Publisher: Ann Rachel Music. (2 minutes 29 seconds)Lock-out

Track 4. 1K tone Lead-out spiral and final tie-off

Side B:

Burn-In - 33 1/3 rpm:

Note: Burn-in is mastered at two different speeds and designed to be played at 33 1/3 rpm.

The first section, from the outside edge to the lock-out groove (the stylus will stay in the groove until lifted out), is mastered at 16 2/3 rpm. Tracks 2, 3 and 4 are mastered at 22 1/2 rpm.

Track 1a. Voice announcement by George Cardas, "Greetings from the left channel"

Spiral

Track 1b. Voice announcement by George Cardas, "From the right channel"

Spiral

Track 1c. Voice announcement by George Cardas, "From both channels"Note: This is lateral modulation (mono, in phase).

Spiral

Track 1d. "In polarity" Both channels in positive polarity

Spiral

Track 1e. "Out of polarity" Both channels in reversed or negative polarity

Spiral

Track 1f. 13 strikes on a high "B-flat" on a pianoNote: The last of the 3 strings are brought into zero-beat, dead-on tuning. Listen for the impact of hammer on string, quickly followed by room reflections mingling with one another, followed by a keener sense of the piano sound itself, as the ring-out time of the string exceeds that of the reverb time of the room.

Spiral

Track 1g. Hollow sticks, of various lengths and diameters, being struck, one on another.

Note: It is recorded in a very reverberant, spacious environment. The spatial, impact and directional cues will not sound correct if the polarity is wrong.

Lock-out

Note: The remainder of this side is cut at 22.5 rpm and consists of three wide bands of pink noise, separated by two blank, 1/2 inch wide plateaus. The plateaus are protected by two blank grooves on each side, to keep the stylus from sliding into the pink noise. The three wide bands are groups of individually locked grooves of mono pink noise, recorded at "0" dB, relative to NAB standard level. These are continuous grooves and the stylus will stay in a groove until it is lifted out. This 180 gram pressing is made of specially formulated hard vinyl.

Track 2. 20 locked grooves, lateral modulation (mono)1/2” wide, unmodulated plateau

Track 3. 32 locked grooves, vertical modulation (out-of phase)1/2” wide, unmodulated plateau

Track 4. 20 locked grooves, lateral modulation (mono)Track 5. 26 unmodulated grooves

Note: These unmodulated grooves facilitate electro-forming (matrix) operations and help vinyl flow in the record press, for a quieter, flatter disk. Lead-out spiral and final tie-off

Producent CARDAS AUDIO | USA