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Parts Inventory

Carefully unpack the kit, take inventory of all parts and make sure that nothing was damaged during shipping. Your 
BR-1 Reference Monitor System should include the following:

Model # 

Qty 

Description

BR-1CAB 

Dayton Audio BR-1 Cabinet Pair

DC160-8 

Dayton Audio 6-1/2" Woofers

DC28F-8 

Dayton Audio 1-1/8" Silk Dome Tweeters

BR-1XO 

Crossover Boards

47uF-100V 

47uF-100V Non-polarized Capacitors (C3)

DFFC-0.10 

Dayton Audio .1uF-400V By-Pass Capacitor (C3)

DNR-8.0 

Dayton Audio DNR-8.0 8 Ohm 10W Non-Inductive Resistors (R1)

DMPC-3.0 

Dayton Audio 3.0uF-250V Polypropylene Capacitors (C2)

1.5mH IND 

1.5mH 18 Ga. Perfect Layer Inductors (L2)

DMPC-6.2 

Dayton Audio 6.2-250V Polypropylene Capacitors (C1)

4 Ohm 5W 

4 Ohm 5W Resistors (R2)

6.2 Ohm 5W 

6.2 Ohm 5W Resistors (R3)

.4mH ACI 

.4mH 20ga. Air Core Inductors (L1)

TCUP BR-1 

Terminal Cups 

16 Ga 6Ft 

6' long 16 Ga. Sound King Wire

.205" 16-14 

24 

.205" (16-14) F-Disconnect 50 PCS.

Foam 

Acoustic Foam 1-1/2" 24"x18" 

8X34 

#8 x 3/4" Phillips Pan Head (for woofer)

6X34 

14 

#6 x 3/4" Phillips Pan Head (for tweeter & cup)

MANUAL 

BR-1 Instruction Manual 

Background and Objectives

The objective when designing this system was to offer customers a great sounding, low cost kit that can be quickly 
and easily assembled while offering a basic lesson in speaker design. Although cost was a factor, the design must 
offer excellent performance. In short, a Budget Reference system. Hence the name Dayton Audio BR-1.

Many of you have a strong interest in building inexpensive loudspeakers, but do not possess the necessary test 
equipment to design from scratch. The BR-1 is an effort to provide an inexpensive kit that gets the most out of the 
chosen drivers. 

Even though cost was a factor in the choice of components and in the final crossover design, the end result is quite 
satisfying. The design objective was met with flying colors. The overall sound is smooth and detailed, with a wide 
soundstage that belies their smallish size. The tonal balance is on the warm side of neutral, which is pleasing with 
most types of music. Bass also is impressive for a 6.5" driver, the F3 (Half power frequency in Hz) being around 43 
Hz. Your BR-1s will perform well for living room, family room, or dorm room music listening or in your high end home 
theatre surround system. 

Congratulations on your purchase of the Dayton 
Audio

®

 BR-1 2-Way Reference Monitor Speaker 

System. Features of this kit include an elegant 
design, quality components, detailed assembly 
instructions, and an in-depth design tutorial. 

The BR-1 Speaker Kit can be built in only a few 
hours using basic hand tools and electronic 
supplies. Once you’ve completed this speaker 
project you will have learned the basics of 
speaker design and construction and have 
speakers that will provide you with fantastic 
sound for years to come.

Summary of Contents for BR-1

Page 1: ...2 WAYREFERENCE MONITOR SYSTEM Model BR 1 ConstructionWorkbook...

Page 2: ...er design Although cost was a factor the design must offer excellent performance In short a Budget Reference system Hence the name Dayton Audio BR 1 Many of you have a strong interest in building inex...

Page 3: ...on Audio 1 1 8 silk dome tweeter is hands down one of the finest tweeters available in it s price range The response exhibits some peakiness and the driver seems to have a wandering Fs but the sound i...

Page 4: ...and the Le was found to be 1 87 millihenries Using an accurate ohm meter the Re was 6 5 ohms Using the above formula R 1 25 x 6 5 R 8 125 ohms so C 00187 66 C 0000283 farads or 28 3 uF Although these...

Page 5: ...ayton Audio film foil capacitor wired in parallel The reason NP electrolytics are very cost effective but exhibit high ESR Equivalent Series Resis tance and also have some inductive components Using a...

Page 6: ...to achieve a flat overall response The BR 1 measures on axis within 2 0dB from 100 Hz 12 KHz Flat frequency response is desirable so that all frequencies are reproduced with the same loudness over the...

Page 7: ...be relatively benign however It s worth discussing the parallel notch filter because it is a handy circuit that is used to control frequency response peaks A parallel notch filter consists of a capac...

Page 8: ...relationship exists when the tweeter is connected with normal polarity Reverse Tweeter Polarity Page 8 So the values for our proposed parallel notch filter is a 9 4uF capacitor 26mH inductor and a 14...

Page 9: ...8 wide 14 1 4 high with a depth of 11 giving it a small footprint suitable for stand mounting It is recommended to place the tweeter at or slightly below ear height of a seated listener The center to...

Page 10: ...is critical to the proper operation of this speaker system In a worst case situation an improperly wired network can damage your receiver or amplifier Please double and triple check all values and wi...

Page 11: ...the insulation on all wires back about 3 8 1 2 6 Using a crimp tool crimp the 205 terminals on the wire leads To ensure a tight connection gently squeeze the push on terminals with a small pair of pli...

Page 12: ...point it is a good idea to label each wire to ensure proper hook up Masking tape and a marker will work fine 3 Cabinet Assembly Instructions A Installing the Crossovers To mount the crossovers we rec...

Page 13: ...stall Acoustic Damping Foam We ve included two 2 sheets of acoustic foam one sheet for each speaker Acoustic damping foam absorbs internal standing waves inside the cabinet and prevents reflections to...

Page 14: ...2 9 5 1 2 2 Install the foam on the back of the cabinet first and trim around the port tube Make sure it does not obstruct the airflow to the port tube as this will alter the tuning of the box 3 Next...

Page 15: ...allow the faceplate to mount flush with the baffle 1 Attach each wire to the appropriate driver terminals while observing proper polarity positive to positive negative to negative The tweeter has a r...

Page 16: ...ce the speakers so they are at least 3 4 ft from side walls if possible Dayton Audio Last Revised 2 10 2015 daytonaudio com tel 937 743 8248 info daytonaudio com 705 Pleasant Valley Dr Springboro OH 4...

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