| •PRESS RELEASE: Eighty channels HV-3D Preamlifiers Selected for new Venezuelan Symphony Hall (Click here)
Eight channels of HV-3 mic preamp in one 2U height rack chassis.
HV-3: Includes +48V phantom powering, optional +130 Volt B&K (DPA) mic
powering, LED indicators, gain of 5 dB per step in 12 steps. Optional high-res
(HR) gain switch available with 1.5 dB per step in 36 steps. DC Input Option
available. Accepts 115V/230 VAC worldwide mains powering.
Fully shielded internal power supply. Identical spec and performance as HV-3
except high resolution (HR) gain switches are standard. Optional DPA +130 Volt
(BK) mic inputs. Gloss black 3/8" faceplate. Accepts 100 - 240 VAC mains
powering. Ground lift. DC Input Option.
- High speed transformerless design
- 23 db input & 32 db output headroom (no pads required)
- Entirely balanced audio path
- Optional b&k (DPA) +130 volt inputs on all channels
- Optional dc-coupled "ribbon inputs" on all channels
- Laser trimmed fet-based output
- Thd+n less typically than 5 ppm (.0005%)
- Matched discrete transistor front-end
- High-resolution gain switches standard (36 steps)
- Interchannel gain matched to .04 db
- Four ch. Unit factory upgradable to eight ch.
- Fully shielded internal toroid power supply
- Unsurpassed ambience retrieval
- Effortless, lifelike musical performance at all dynamic levels
Available Options
- B&K (DPA) +130V mic inputs
- DC Optimized Mic Inputs
- Channel Summing
Product Specifications
| MINIMUM GAIN |
8.5 dB |
| MAXIMUM GAIN (1.5 dB per step, 36 steps) |
60.5 dB (up to 78 dB on rqst) |
| FREQUENCY RESPONSE +0 / -3 dB |
sub 4 Hz to beyond 300 kHz |
| FREQUENCY RESPONSE, STEREO DEVIATION |
< .04 dB |
| NOISE @ 60 dB Gain, 10 Hz - 30 kHz, Inputs common |
-133 dB EIN |
| NOISE @ 60 dB Gain, 10 Hz - 30 kHz, 50 Ohm Source |
-130 dB EIN |
| NOISE @ 60 dB Gain, 10 Hz - 30 kHz, 150 Ohm Source |
-128 dB EIN |
| TOTAL HARMONIC DISTORTION + NOISE, 35 dB Gain, 10 Hz - 20 kHz bandwidth,
+27 dBu Out |
< .001%, Typ. < .0005%
(< 5 PPM) |
| INTERMODULATION DISTORTION (50 Hz & 7 kHz) 35 dB Gain, +27 dBu
Out |
< .0009% |
| PHASE RESPONSE 35 dB Gain, 50 Hz - 20 kHz bandwdth, +27 dBu Out |
< 2 degrees deviation |
| PHASE RESPONSE, STEREO DEVIATION 35 dB Gain, 20 Hz - 40 kHz bandwidth,
+27 dBu Out |
< 1/2 degree deviation |
| COMMON MODE REJECTION RATIO 35 dB Gain, 10 Hz - 20 kHz bandwidth, 100 mV
C.M. |
> 65 dB, Typ > 85 dB |
| SLEW RATE 35 dB Gain, +27 dBu Out |
> 25 Volts per microsecond |
| MAXIMUM INPUT LEVEL 20 Hz - 40 kHz |
+23 dBu* |
| MAXIMUM OUTPUT LEVEL 20 Hz - 40 kHz |
+32 dBu |
INTERCHANNEL CROSSTALK
35 dB Gain, 1 kHz, +27 dBu All
Outputs |
Better than -120 dB (> 20 Bits) |
| PHANTOM INPUT IMPEDANCE @ 20 Hz |
6,700 Ohms |
| PHANTOM INPUT IMPEDANCE @ 20 kHz |
6,800 Ohms |
| OUTPUT IMPEDANCE |
24.3 ohms (x2) |
| B&K (DPA) MIC POWERING |
+130 VDC, max, direct (non-phantom) powered |
| PHANTOM POWERING |
+48 VDC, +/- 2 VDC |
| POWER CONSUMPTION, MAXIMUM |
45 Watts, Maximum |
| POWER REQUIREMENTS |
100 to 240 VAC, 50/60 Hz |
| DIMENSIONS |
19" W x 12" D x 3.5" H | * Approximately equivalent to the output of a B&K
4012 microphone in a 145 dB SPL soundfield.
- Unless stated, all measurements
are balanced into 100k ohm load on a calibrated Audio Precision System One.
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here for more information |
