Inter-m QD-4960 User Manual download pdf (Page 24)

QUAD AMPLIFIER

QD-4240/4480/4960, QX-4960

Specifications

*0dB=0.775Vrms, Half Power=1/2 Power Output Level (Rated Power)

40W 80W 170W

60W 120W 240W

120W 240W 480W

60W 120W 240W

20Hz~50kHz (±0.5dB)

≤ 0.05%

≤ 0.07%

≥ 80dB

≥100dB

0dB

≥ 20kΩ (Balance/Unbalance)

Power (Red)

Protection (Mute) x 4 (Red)

Clip x 4 (Red)

Signal x 4 (Green)

Power SW ON/OFF muting

Heatsink Temp ≥ 100˚C (212˚F)

–50˚C (122˚F)–60˚C (140˚F)–

Low-Speed – Variable – Hi-Speed

(Front) Power SW: Push up On/Push down Of

Attenuator: 21-position dB calibrated

(Rear) Mode SW: Bridge=BTL/Stereo/Parallel

100-120VAC or 220-240VAC; 50/60Hz

(Supplied AC mains transformer depends on country requirements)

300W 420W 770W

11.5kg/25.3lb 15.5kg/34.2lb 17kg/37.5lb

482(W) x 88(H) x 369(D) mm/19(W) x 3.5(H) x 14.5(D) in

Input : Combination Jack (balance)

Output : 5-Way binding posts x 4

Rated Output (RMS)

f=1kHz, THD+N≤0.05% (Typical)

QUAD RL=8Ω

RL=4Ω

BRIDGEDSTEREO RL=8Ω

One Channel Driven

f=1KHz THD+N≤0.05% RL=4Ω

Frequency Response RL=8Ω, P=1W

Power Bandwidth Half Power, THD+N≤0.1%

QUAD RL=8Ω

Total Harmonic Distortion (THD+N)

f=20Hz~20kHz, Half Power

QUAD RL=8Ω

RL=4Ω

BRIDGED RL=8Ω

Channel Separation Half Power RL=8Ω,

f=1kHz, ATT. max. Input 600Ω shunt

Residual Noise (DIN Audio Filter)

Signal-to-Noise Ratio DIN Audio,

Input 600Ω Shunt

Sensitivity (ATT max.)

Rated Power into 4Ω 1kHz

Input Impedance (ATT max.)

Indicators

Protection

PC Limiter

Fan Circuit

Controls

Power Source

Power Consumption (1/8 Power)

Weight

Dimensions

Connectors

Crossover Frequency From 60Hz to 250Hz or 600Hz to 2.5kHz

Crossover Slope 24dB/octave Roll/off (Linkwitz Filter)

LOW Filter 40Hz (12dB/octave)

* Specifications and design subject to change without notice.

- ACTIVE CROSSOVER (QX-4960)

10Hz~20kHz10Hz~70kHz

≤ –70dB: ATT min. ≤ –85dB: ATT min.

QD-4240 QD-4480 QD-4960 QX-4960

Power (Red)

Protection (Mute) x 4 (Red)

Clip x 4 (Orange)

Signal x 4 (Green)

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Inter-m QD-4960 User Manual Page 24

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