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Blossom
Blossom Blo-0299 Balanced Headphone
Amp $1449

Winner of 2010
Excellence Award by AEx

BLO-0299 is an audiophile
quality headphone amplifier which is housed in beautiful natural wooden
box. Its compact size is excellent for desktop use. BLO-0299 can drive
balanced headphone (also two single ended headphones). Balanced
headphone listening provides a more natural, musical, and detailed sound
with great stereo imaging.
The BLO-0299's Integrated circuit was designed to provide great detail
and clarity. The circuit design is clearly better than even the best
discrete designs. High quality metal film resistors are used, no
electrolytic capacitors are in the signal path. All passive parts are
hand selected to provide close matching and even the solder used
is high grade. BLO-0299 has achieved ultra low noise and distortion,
very flat frequency response, and great phase property. The BLO-0299 was
designed for true musical tone.
Features
Balanced Headphone Amplifier
2 x single ended normal
headphone outputs)
Cross Feedback Balanced Circuit (2 output circuits for each output
channel).
Realistic True Tone Preamp design which use ultra low noise / high speed
IC.
Point to point wiring pattern for circuit board design to avoid common
impedance.
To keep signal path as short as possible, relays are used for all signal
switching
High quality metal film resistors are used
No electrolytic capacitors in the signal path
Balance Stereo inputs (XLR,TRS Combo) and Unbalance RCA input
(selectable)
Hi(+10dB) /Lo(0dB) Gain mode
Master Volume Control function (variable level line outputs)
Headphone output mute function
Housed in natural walnut wooden box
Hairline finished stainless steel panel
Same walnut volume knob and feet
1, Headphone Outputs
1/4" stereo plug / XLR combo type
2, Outputs Selector Switch
Headphone or Line output

3, Gain Selector Switch
Lo (0dB) or Hi (+10dB) gain
4, Input Selector Switch
Select Balanced XLR("1/4) Combo or Unbalanced RC
5, Volume
We recommend use volume control 9 o'clock position or more.
(for accurate L/R balance within 0.3dB)
6, Balance Input Connectors
1/4" stereo plug / XLR combo type
7, Unbalance Input Connectors
RCA unbalanced inputs
8, Line Outputs
Volume controlled RCA unbalanced outputs.
9, Power Switch
Headphone output is muted 2 seconds when power turn on.
Line outputs are not muted.
10, DC input
24V power adapter included.
BLO-0299 balanced signal
output circuit, unaffected, accurate full signal.

* Cross Feedback Balanced
Circuit

Specifications
Frequency Response
@0dBu OUT +/- 0.5dB , 50Ω Load
0.1 Hz ~ 80 kHz
Phase Deviation
@0dBu OUT 50Ω Load , 20Hz~20kHz
<0.1°
THD+N
<HEADPHONE OUTPUT>
@+15dBu OUT , 1kHz , 50Ω Load <0.001 %
@+10dBu OUT , 20Hz~20kHz , 50Ω Load <0.005 %

<LINE OUTPUT>
@+10dBu OUT , 1kH <0.001 %
Maximum Output Level @1kHz , 50Ω Load +15 dBu
IMPEDANCE
Balanced Input: @1kHz 20 kΩ
Unbalanced Input: @1kHz10 kΩ
Dynamic Range: >114 dB
Power Supply DC 24V mA
Size 64 x 158 x 212 mm
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