Pre Amplifiers Comparison
Model System Inputs Quadro Inp. Sensitivity High Level
(mV)
Inp. Impedance High Level
(kΩ)
Frequency Response High Level
(HZ)
Signal/Noise High Level
(db)
Inp. Sensitivity Phono MM
(mV)
Inp. Impedance Phono MM
(kΩ)
Inp. Sensitivity Phono 2
(mV)
Inp. Impedance Phono 2
(kΩ)
Frequency Response Phono MM Signal/Noise Phono MM
(db)
Inp. Sensitivity Phono MC
(mV)
Inp. Impedance Phono MC
(kΩ)
Signal/Noise Phono MC
(db)
Outputs Frequency Response
(HZ)
Harmonic Distortion
(% at rated output)
Output Voltage Rec Out
(mV)
Impedance Pre Out
(kΩ)
Output Voltage Pre Out
(mV)
Impedance Rec Out
(kΩ)
Tone Controls Frequencies Filters Loudness Dimensions in Inches
((w) x (h) x (d))
Dimensions in mm
((w) x (h) x (d))
Weight in lbs
(lbs)
Weight in Kg
(Kg)
Denon PRA-1500
Denon PRA-1500
Transistor Pre Amplifier Phono (MM/MC); Tuner; Tape I+II; CD; AUX I+II; no 150 47 N/A 107 (IHF) 2.5 47 N/A N/A RIAA 0.2 dB
(0.3 dB MC)
(5.0 mV, IHF A) 96 0.2 100 (0.5 mV, IHF A) 79 2 REC OUT; Mono Out; Pre Out 1; Pre Out 2 N/A 0.002 N/A 10 (Normal); 600 (Sym.) 1,000 Normal; 2,000 Sym. N/A Bass; Treble 8 dB/100 Hz
8 dB/10 kHz
SUBSONIC 16Hz/12 dB/oct. +8 dB/100 Hz
+4 dB/10 kHz
17.1 x 10.8 x 11.7 434 x 120 x 298 10.8 4.9
Denon DAP-2500
Denon DAP-2500
Transistor Pre Amplifier (analog / digital) 7 analog (Phono; CD; Tuner; AUX I+II; Tape I+II)
3 digital (2 coaxial; 1 optical; DAT/CD/Tape-DAT-Monitor)
no 1,000 (AUX-IN∼PRE OUT I) N/A N/A 108 2.5 47 N/A N/A RIAA (0.2 dB) 96 (5 mV) 0.2 (PHONO-IN∼PRE OUT)
0.1 79 (0.5 mV) 2 REC/PLAY; PRE OUT; analog 2-20,000 (+3 dB)
digital 1-300,000 (+0.2/-3 dB)
>0.001 ((PHONO-IN∼REC OUT)
>0.002 (AUX-IN∼PRE OUT)
N/A N/A 1,000 (unbalanced)
2,000 (balanced)
0.01 (unbalanced)
0.6 (balanced)
Bass; Treble 8 dB/100 Hz
8 dB/ 10 kHz
Phono Subsonic (12 dB/oct./16 Hz) variable 100 Hz +8 dB/
10 kHz +4 dB (at Max.)
17.1 x 5.3 x 15.2 434 x 136 x 386 18.7 8.5
Denon PRA-1100
Denon PRA-1100
Transistor Pre Amplifier Phono MM+MC; Tape I+II; Tuner; CD; CD direct; AUX I+II no 150 (CD direct: 1,000) 47 (CD direct: 10) N/A 105 (IHF A) 2.5 47 N/A N/A N/A N/A 0.2 100 N/A PRE OUT; 2 REC OUT 1-300,000 (+0,2/-3 dB)
10-100,000 (0,2 dB)
<0.003 N/A 0.01 10,000 N/A Bass; Treble 8 dB/100 Hz; 4 dB/10 kHz Subsonic (12 dB/oct.) N/A 17.0 x 4.7 x 11.9 434 x 119 x 302 11.1 5.0
Denon-PRA-2000 Z
Denon-PRA-2000 Z
Transistor Pre Amplifier Phono MC I+II; Phono MM; Tuner; DAD; AUX; Tape I+II no 150 47 1-300,000 (+0/-3 dB)
10-100,000 (+0/-0.3 dB)
105 (IHF A) 2.5 47 0.12 (MC) 0.1 (MC) RIAA (0.2 dB) 90 (IHF A) 0.1 0.04 80 (IHF A)
75 (Phono II)
2 PRE OUT; 2 PB N/A <0.0015 (20-20,000 Hz, 4 V) 150 (rated)
30,000 (max)
N/A 1,000 (rated)
12,000 (max)
N/A Bass; Treble 8 dB/100 Hz 8 dB/10 kHz Subsonic (-6dB/oct/16 Hz)
High (-6dB/oct/7 kHz)
N/A 18.2 x 5.7 x 15.2 462 x 145 x 385 23.4 10.6