Hafler 2-Channel 400W Studio Amplifier

BH #HAP3100 • MFR #H300-3100
Hafler 2-Channel 400W Studio Amplifier
Key Features
  • Patented Trans•nova Technology
  • 150W Per Channel into 8 Ohms
  • 200W Per Channel into 4 Ohms
  • 400W in Bridged Mode into 8 Ohms
The P3100 2-Channel Studio Amplifier from Hafler features a toroidal power transformer with a low output impedance and reduced noise. Passive convection cooling with over-sized heatsinks surround the amplifier eliminating the need for a fan. The front panel includes individual level adjustments to offset room imbalances, signal presence, and ballistic LED metering along with indicators for faults due to excessive heat or short circuits. A soft start power-on switch protects loudspeakers from turn on transients that could reduce lifespan. The rear panel features 3-pin XLR and RCA ports for flexibility. Output connections feature gold-plated binding posts that can adapt to all popular speaker cable sizes. This amplifier features 150W power per channel at 8 Ohms, 200W at 4 Ohms, and 400W in bridged mode at 8 Ohms.
Discontinued
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Hafler H300-3100 Overview

The P3100 2-Channel Studio Amplifier from Hafler features a toroidal power transformer with a low output impedance and reduced noise. Passive convection cooling with over-sized heatsinks surround the amplifier eliminating the need for a fan. The front panel includes individual level adjustments to offset room imbalances, signal presence, and ballistic LED metering along with indicators for faults due to excessive heat or short circuits. A soft start power-on switch protects loudspeakers from turn on transients that could reduce lifespan. The rear panel features 3-pin XLR and RCA ports for flexibility. Output connections feature gold-plated binding posts that can adapt to all popular speaker cable sizes. This amplifier features 150W power per channel at 8 Ohms, 200W at 4 Ohms, and 400W in bridged mode at 8 Ohms.

Trans•nova (TRANS conductance Nodal Voltage Amplifier, US Patent 4,467,288) circuit reduces the gain stages resulting in a open sounding and realistic sound stage
Inherently self-shielding reduces the amount of potential low frequency and rectifier noise introduced into the audio signal path
Bridged in mono, 400W are available for sub-woofers or as a matched pair for large 2-channel setups
Individual level adjustment for each channel
Idle, level, and clip indicators show output
Soft start power switch protects loudspeakers from turn-on transients
Fault and heat LEDs illuminates when a fault or excessive heat is detected
You can align the P3100 to be mounted in a standard 19" 2 RU rack enclosure
Input selector selects between balanced or unbalanced RCA input
UPC: 676101044337

Hafler H300-3100 Specs

Audio Circuit TypeTrans•nova MOSFET - Class-AB
Number of Channels2
Connectors1 x 3-Pin XLR Female, Left Balanced Input
1 x 3-Pin XLR Female, Right Balanced Input
1 x RCA, Left Unbalanced Input
1 x RCA, Left Unbalanced Loop Output
1 x RCA, Right Unbalanced Input
1 x RCA, Right Unbalanced Loop Output
2 x Gold-Plated Binding Post, Left Speaker Output
2 x Gold-Plated Binding Post, Right Speaker Output
1 x EIC Chassis, 115V/230V Power
Input Impedance47 kOhms
Input Gain+14 dB (Min) / + 29 dB (Max)
Input Sensitivity620 mV to 3.5 V (at 8 Ohms) per Phase Balanced
505 mV to 2.8 V (at 4 Ohms) per Phase Balanced
Output Power150 W RMS Per Channel (8 Ohms)
200 W RMS Per Channel (4 Ohms)
400 W RMS Bridged/Mono (8 Ohms)
Frequency Response10 Hz to 30 kHz (±.25 dB)
S/N Ratio> 102 dB (A Weighted)
THD< 0.15% from 15 Hz to 50 kHz
IMDDistortion: < 0.02% at 60 Hz
Maximum Wire Gauge10-Gauge (0.1" / 2.59 mm)
Power Supply115 / 230 VAC, 50/60 Hz (Selectable)
Power Consumption35 W (Idle Power)
700 W (Max Power - 8 Ohms)
Operating Temperature23 to 104°F / -5 to 40°C
Storage Temperature-40 to 248°F / -40 to 120°C
Dimensions19.0 x 3.5 x 9.9" / 483 x 89 x 251 mm
2 RU
Weight23 lb / 10.43 kg
Packaging Info
Package Weight31.85 lb
Box Dimensions (LxWxH)25 x 17.5 x 9"
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