Benchmark MPA1 Bedienerhandbuch PDF herunterladen (Seite 25)

PRE420 Instruction Manual – rev. E Page 25

THD Spectrum at 10 KHz

Audio Precision

02/19/07 11:09:3010 kHz FFT at 60 dB Gain, Output Level = +24 dBu, 0 dBr = +24 dBu

ColorSweep Trace Line Style Thick Data Axis Comment Cursor1 Cursor2

1 1 Red Solid 4 Fft.Ch.2 Ampl Left *-109.271 dBr A *-118.787 dBr A

-150

-100

-148

-146

-144

-142

-140

-138

-136

-134

-132

-130

-128

-126

-124

-122

-120

-118

-116

-114

-112

-110

-108

-106

-104

-102

-109.271

-118.787

2k 32k4k 6k 8k 10k 12k 14k 16k 18k 20k 22k 24k 26k 28k 30k

20.022k 30.0293k

dx=10.0073 kHz

dy=-9.515 dB

The above FFT plot shows that the PRE420 has very little harmonic distortion at high frequencies.

The 10 kHz test tone is notched out with a THD analyzer to improve the resolution of the test. The

20-kHz 2

-harmonic distortion measures better than -109 dB. The 30-kHz 3

-harmonic distortion

measures better than -118 dB.

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 36 37

Kommentare zu diesen Handbüchern

Keine Kommentare

Benchmark MPA1 Bedienerhandbuch Seite 25

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Audioverstärker Benchmark MPA1