Tascam MH-8 Hovedtelefon forstærker 8 kanaler

MH-8 er den ideelle hovedtelefonsforstærker til studio'et, scenen og installationer. Hver af de otte stereo-outputs leverer 250 mW per side med tre omstillelige kilder. To stereo-inputs kan deles til begge outputs og individuelle stereo direct-inputs er tilgængelige til hver af de otte kanaler. En hovedtelefonskanal kan benytte et hvilket som helst af input'ene, eller mixe dem sammen. MH-8 bor i en robust, rack-monterbar metal-chassis med indbygget strømforsyning, ground-terminal og ground-lift-switch.

Line mixer with flexible signal routing
Ideal solution for installations in boardrooms, conference rooms, health/fitness clubs, restaurants, houses of worship, as a keyboard or stage sub mixer and more
8 stereo input channels for line sources like CD/MP3 players, tuners, TV or VCR audio signals etc. (balanced TRS)
Additional mic/line input with level control for channel 1 on front panel for announcements etc. (balanced XLR)
2 stereo outputs (ST1 and ST2/AUX, balanced XLR / unbalanced RCA)
Each stereo input can be mixed to each stereo output independently:
ST1: Input signal is sent to ST1 output
ST2: Signal before the ST1 level control (pre fader) is sent to ST2/AUX output
AUX: Signal behind the ST1 level control (post fader) is sent to ST2/AUX output
Switches for ST2/AUX selection per channel on bottom panel
Input level selectable between +4 dBu and –10 dBV per channel (on rear panel)
Signal presence and overload LEDs on each channel
4-dot LED stereo level meters on each output
Each stereo output switchable to mono
High-power headphones output with level control and selectable source (ST1, ST2/AUX)
Balanced master bus output and input (input selectable between ST1, ST2/AUX and Mix) for cascading of multiple units
Ground terminal and ground lift switch on rear panel
Easy replaceable fuse
1U rack-mountable chassis

Audio inputs and outputs
Mic input
XLR (balanced)
Input impedance
2.4 kΩ
Nominal input level
–58 dBu (1 mV) to –12 dBu (195 mV)
Maximum input level
+10 dBu (2.45 V)
Stereo inputs
6.3-mm TRS (balanced)
Input impedance
56 kΩ
Nominal input level
+4 dBu (1.23 V)
Maximum input level
+24 dBu (12.3 V)
Master bus input
6.3-mm TRS (balanced)
Input impedance
56 kΩ
Nominal input level
+4 dBu (1.23 V)
Maximum input level
+24 dBu (12.3 V)
ST1, ST2/AUX outputs
XLR (balanced)
Output impedance
94 Ω
Nominal output level
+4 dBu (1.23 V)
Maximum output level
+24 dBu (12.3 V)
ST1, ST2/AUX outputs
RCA (unbalanced)
Output impedance
200 Ω
Nominal output level
–10 dBV (0.3V)
Maximum output level
+10 dBV (3.16 V)
Bus output
6.3-mm TRS (balanced)
Output impedance
94 Ω
Nominal output level
+4 dBu (1.23 V)
Maximum output level
+24 dBu (12.3 V)
Headphones output
6.3-mm TRS (stereo), 3.5-mm TRS (stereo)
Maximum output power
250 mW + 250 mW (at 32 Ω)
Audio performance
Frequency response
20 Hz–50 kHz, ±3 dB (PHONES outputs)
10 Hz–100 kHz, ±3 dB (BUSS output)
S/N ratio
≥80 dB(A) (PHONES outputs, 20 kHz LPF)
≥80 dB(A) (BUSS output, 20 kHz LPF)
THD
≤0.07% (PHONES outputs, when outputting 100 mW + 100 mW (32 Ω), 20Hz HPF and 20 kHz LPF)
≤0.03% (BUSS output, 20 Hz HPF and 20 kHz LPF)
Channel separation
≥50 dB(A) (PHONES outputs, 20 kHz LPF, 1 kHz nominal input and output, 32 Ω termination)
≥70 dB(A) (BUSS outputs, 20 kHz LPF, 1 kHz nominal input and output, 600 Ω termination)
Crosstalk
≥65 dB(A) (BUSS outputs, 20 kHz LPF, 1 kHz nominal input and output, 600 Ω termination)
Power supply and other specifications
Voltage requirements
AC 100–240V, 50–60 Hz
Power consumption
15 W
Dimensions (WHD)
482 mm x 44 mm x 280 mm
Weight
3.8 kg
Operating temperature range
5–35 °C
Included items
Power cord, Rack-mounting screw kit, Warranty card, Owner’s manual