Background sound leveling amplifier
with dual mono and fully balanced input/output circuitry
DESCRIPTION
Fully balanced circuit design
From the head amplifier to the equalizing amplifier sections to the buffer amplifier section on the final output stage; the PE-505 employs a fully-balanced circuit design throughout all stages that amplifies, equalizes, and maintains signal purity of even the most extremely faint audio signals picked up by a cartridge.
Even unbalanced signal on the conventional RCA input is converted to the differential processing mode right after the input terminals.
Equalizing circuit on the differential cartridge output
Absorbing errors on the balanced output, the differential output equalizing circuit delivers a more accurate audio signal. The differential output circuit that cross-multiplies the hot and cold outputs each other. As a result, both signals are equalized for a pure and natural audio signal delivery.
High-precision RIAA circuit
A newly developed NF-type equalizing amplifier achieves less than ±0.05dB of RIAA deviation.
(20Hz to 20kHz)
High Signal-to-Noise ratio
The PE-505 achieves 106dB on the RCA input*1, and 86dB on the XLR input*2, while the residual noise voltage reaches 10μV on the MM and 85μV on the MC*3 which are sophisticated.
High-precision OLD EQ curves
As well as the modern RIAA curve, individual curves from DECCA and COLUMBIA issued before the RIAA curve was defined in 1955 are also supported.
Versatile settings and unique measuring functions
The PE-505 equips switchable load-capacity for MM cartridges and switchable load-resistance for MC cartridges. Furthermore, the load-resistance measuring function allows users to select an appropriate load-resistance by pressing the MEASURE key on the front panel to show the total load-resistance value including cable resistance on the gauge.
Also, the Subsonic function shows subsonic signals less than 6Hz on the gauge, while the subsonic filter (17Hz, -24dB/octave) cuts unnecessary low frequencies out of the hearing range.
DEMAG function to refresh the cartridges
With the quick demagnetize function, both magnetized iron cores of MC cartridges and the step-up transformer are demagnetized by playing back a vinyl record for as short as 30 seconds with the DEMAG position.
TECHNICAL DATA
Total harmonic distortion (Rated output, 1kHz, GAIN Low)
RCA input (MM) 0.002%
RCA input (MC) 0.02%
XLR input (MC) 0.02%
Residual noise volt (Input short, GAIN low, IHF-A)
RCA input (MM) 10μV
RCA input (MC) 65μV
XLR input (MC) 85μV
S/N ratio (Input short, Rated input, GAIN Low, IHF-A)
RCA input (MM) 106dB
XLR input (MC) 86dB
RIAA deviation (20Hz to 20kHz) ±0.05dB
Channel separation −90dB or higher (MM, 10kHz, GAIN Low)
Good
GAIN LOW
RCA input (MM) 34dB
RCA input (MC) 54dB
XLR input (MC) 54dB
GAIN HIGH
RCA input (MM) 46dB
RCA input (MC) 66dB
XLR input (MC) 66dB
Subsonic filter 17Hz, -24dB/octave
Phono input section
Unbalanced input RCA Pin (MC/MM compatible) × 1 pair
Max input level 150mV (MM, THD 0.1%, GAIN Low), 16mV (MC, THD 0.1%, GAIN Low)
Input impedance
MM 47kΩ, Load-impedance: 0, 100, 220, 330pF
MC 10, 22, 47, 100, 220, 470, 1kΩ
Balanced input XLR (MC only) × 1 pair
Max input level 16mV (MC, THD 0.1%, GAIN Low)
Input impedance MC 10, 22, 47, 100, 220, 470, 1kΩ (switchable from the Settings)
Analog output section
Unbalanced output RCA pin × 1 pair
Rated output level 2Vrms
Output impedance 63Ω
Balanced output XLR × 1 pair
Rated output level 4Vrms
Output impedance 126Ω
Power supply AC120V, 60Hz / AC220 - 240V, 50/60Hz
Power consumption 14W
Overall dimensions (W × H × D) 290 × 84.5 × 252.5 mm / 11.4" × 3.3" × 9.9"
Weight 4.5kg / 10.0 lbs.
DOCUMENTS
User manual (EN)
