Denon DAP5500 Topklasse Digitale voorversterker

The DAP-5500 is a preamplier + digital converter combination : three analogue and three digital inputs, two analogue and one digital tape loops, balanced and s-e analogue outputs plus a DAC out direct (analogue) out of the digital section which bypasses all the (analogue) preamp functions and switches.

The d/a conversion is done with four BurrBrown PCM56P-K 16bit converters in push-pull, two per channel ; filtering is done at 4x oversampling, low-pass filters are 7th order.
Opto-couplers from Hewlett-Packard link everything in the DAP-5500 : two between the digital filter's outputs and the d/a converters, two more between the filters' sync'ing (digital side) and the error correction circuits (analogue side).

Analogue inputs benefit from a quadruple push-pull of PNP/NPN FETs and so does the DAC out analogue output ; the preamplifier's attenuator is a 4-gang from (probably) ALPS.

Unlike many later pre+d/a components like the ultra-successful Sony TA-E1000ESD or TA-E2000ESD, analogue sources can come out of the DAP-5500 as analogue outputs, sans digital conversion and re-conversion to analogue.
No phono input was however deemed interesting or necessary : in 1987, that part of the future was pressing.

The chassis is... two chassis and four boxes : the digital and analogue sections are completely separated from each other, each with its own toroidal transformer, line filtering and power-supply regulation.

Each box holds two horizontal boards, separated by thick and compound-damped steel plates, the lower ones resting on a supplementary bottom plate which is a sandwich of steel-compound-steel. Six heavy alloy feet make it stand up - bullet-proof big box.

Shortly after the DAP-5500 and Sony TA-E77ESD were introduced, the rage in recording studios would however soon be all sorts of valve emulators or the use of old Pultec compressors in hope to find that elusive "warmth" again.

Denon didn't make a separate d/a component before the DA-S1 in 1992 and as the "bit-trek" was going fast, having to switch preamps only to switch DACs was perhaps a little optimistic, market-wise.

Any low end surround receiver is nowadays adorned what that many digital plugs, but in '87, this was future-proof High-End.

DIGITAL section

Inputs :1x optical (digital 1)
2x coaxial (digital 2 & 3, 75 Ohm / 0,5V p-p)
1x coaxial (DAT, 75 Ohm / 0,5V p-p)
Outputs :1x coaxial (DAT rec-out, 75 Ohm / 0,5V p-p)
Sampling frequencies :32 / 44,1 / 48Khz
D/A : 4x 16Bit Superlinear converter, symmetrical array
Digital filter : 4x oversampling, 7th order CALP low pass filter
Frequency response :2Hz...20Khz (± 0,2dB)
S/N ratio :110dB
Dynamic :97dB
THD : 0,002% (1Khz)
Separation :100dB (1Khz)
ANALOGUE section
Inputs :
2x unbalanced LINE (one is doubled on front)
1x balanced LINE
2 tape
Outputs :
2x tape
1x unbalanced pre-out (doubled on front)
1x balanced pre-out
1x DAC out (= DAC bypass)
Max. output level :30V (balanced)
15V (unbalanced)
Frequency response :1Hz...300Khz (+0/-3dB)
S/N ratio : 116dB
THD : 0,002% (20Hz...20Khz, 5V)
General
PC : 25W
Dimensions : 43,4 x 13,3 x 38cm
Weight : 13,7kg.

Bij gebruik van digitaal gedeelte bereikt deze voorversterker High end niveau. 95 Punkten 5 Ohren Referentieklasse in het Duitse HIFI blad Audio.

Superdegelijk gebouwd
Gewicht bijna 14 kg!!
Nieuwprijs F2999,-

POA6600 monoblokken:

Reusachtige krachtcentrales met audiofiele kwaliteiten
250 watt continu bij 8 ohm (650 wat piek bij 8 0hm)
dynamisch vermogen 1100 watt bij 1 ohm !
S/R123db
Zware ringkerntrafo's
40.000 Microfarad voedings elco's per kanaal
volumeregelaars
clipping protector
gebalanceerde XLR en ongebalanceerde ingangen
Afmetingen 310mm x 207 mm x 456 mm
Gewicht 15,6 kg
zwart metaal

Versterkers zijn al eens nagekeken en geserviced door een professional en o.a. voorzien van nieuwe hoogwaardige speakerterminals, geschikt voor banaanstekkers en spades

De set is optioneel voorzien van optionele (niet originele) zijpanelen en verkeert in uitstekende staat

Te koop voor 1799,- inclusief 3 maanden garantie.

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